grzimek''s encyclopedia mammals

There is more size variation in New Guinea, where the largest of the Peroryctes is more than Photo: An endangered western barred bandicoot Perameles bougainville.. Only two species show

Grzimek’s Animal Life Encyclopedia, Second Edition

Volume 13: Mammals II

Project Editor

Melissa C McDade

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248-Cover photo of three-toed sloth (Bradypus tridactylus) by Michael P L Fogden, Bruce

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en-in this publication, The Gale Group, Inc does not guarantee the accuracy of the data con- tained herein The Gale Group, Inc accepts no payment for listing; and inclusion in the publi- cation of any organization, agency, institution, publication, service, or individual does not im- ply endorsement of the editors and publisher Errors brought to the attention of the pub- lisher and verified to the satisfaction of the publisher will be corrected in future editions ISBN 0-7876-5362-4 (vols 1–17 set) 0-7876-6573-8 (vols 12–16 set) 0-7876-5788-3 (vol 12) 0-7876-5789-1 (vol 13) 0-7876-5790-5 (vol 14) 0-7876-5791-3 (vol 15) 0-7876-5792-1 (vol 16) This title is also available as an e-book ISBN 0-7876-7750-7 (17-vol set)

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or-Recommended citation: Grzimek’s Animal Life Encyclopedia, 2nd edition Volumes 12–16, Mammals I–V, edited by Michael

Hutchins, Devra G Kleiman, Valerius Geist, and Melissa C McDade Farmington Hills, MI: Gale Group, 2003

LIBRARY OF CONGRESS CATALOGING-IN-PUBLICATION DATA

Grzimek, Bernhard.

[Tierleben English]

Grzimek’s animal life encyclopedia.— 2nd ed.

v cm.

Includes bibliographical references.

Contents: v 1 Lower metazoans and lesser deuterosomes / Neil Schlager, editor — v 2 Protostomes / Neil Schlager, editor — v 3 Insects / Neil Schlager, editor — v 4-5 Fishes I-II / Neil Schlager, editor —

v 6 Amphibians / Neil Schlager, editor — v 7 Reptiles / Neil Schlager, editor — v 8-11 Birds I-IV / Donna Olendorf, editor — v.

12-16 Mammals I-V / Melissa C McDade, editor — v 17 Cumulative index / Melissa C McDade, editor.

ISBN 0-7876-5362-4 (set hardcover : alk paper)

1 Zoology—Encyclopedias I Title: Animal life encyclopedia II.

Schlager, Neil, 1966- III Olendorf, Donna IV McDade, Melissa C V American Zoo and Aquarium Association VI Title.

QL7 G7813 2004

590’.3—dc21 2002003351

Printed in Canada

10 9 8 7 6 5 4 3 2 1

Foreword ix

How to use this book xii

Advisory boards xiv

Contributing writers xvi

Contributing illustrators xx

Volume 12: Mammals I What is a mammal? 3

Ice Age giants 17

Contributions of molecular genetics to phylogenetics 26

Structure and function 36

Adaptations for flight 52

Adaptations for aquatic life 62

Adaptations for subterranean life 69

Sensory systems, including echolocation 79

Life history and reproduction 89

Reproductive processes 101

Ecology 113

Nutritional adaptations 120

Distribution and biogeography 129

Behavior 140

Cognition and intelligence 149

Migration 164

Mammals and humans: Domestication and commensals 171

Mammals and humans: Mammalian invasives and pests 182

Mammals and humans: Field techniques for studying mammals 194

Mammals and humans: Mammals in zoos 203

Conservation 213

Order MONOTREMATA Monotremes 227

Family: Echidnas 235

Family: Duck-billed platypus 243

Order DIDELPHIMORPHIA New World opossums Family: New World opossums 249

Order PAUCITUBERCULATA Shrew opossums Family: Shrew opossums 267

Order MICROBIOTHERIA Monitos del monte Family: Monitos del monte 273

Order DASYUROMORPHIA Australasian carnivorous marsupials 277

Family: Marsupial mice and cats, Tasmanian devil 287

Family: Numbat 303

Family: Tasmanian wolves 307

For further reading 311

Organizations 316

Contributors to the first edition 318

Glossary 325

Mammals species list 330

Geologic time scale 364

Index 365

Volume 13: Mammals II Order PERAMELEMORPHIA Bandicoots and bilbies 1

Family: Bandicoots 9

Subfamily: Bilbies 19

Order NOTORYCTEMORPHIA Marsupial moles Family: Marsupial moles 25

Order DIPROTODONTIA Koala, wombats, possums, wallabies, and kangaroos 31

Family: Koalas 43

Family: Wombats 51

Family: Possums and cuscuses 57

Family: Musky rat-kangaroos 69

Family: Rat-kangaroos 73

Family: Wallabies and kangaroos 83

Family: Pygmy possums 105

Family: Ringtail and greater gliding possums 113

Family: Gliding and striped possums 125

• • • • •

Contents

Family: Honey possums 135

Family: Feather-tailed possums 139

Order XENARTHRA Sloths, anteaters, and armadillos 147

Family: West Indian sloths and two-toed tree sloths 155

Family: Three-toed tree sloths 161

Family: Anteaters 171

Family: Armadillos 181

Order INSECTIVORA Insectivores 193

Family: Gymnures and hedgehogs 203

Family: Golden moles 215

Family: Tenrecs 225

Family: Solenodons 237

Family: Extinct West Indian shrews 243

Family: Shrews I: Red-toothed shrews 247

II: White-toothed shrews 265

Family: Moles, shrew moles, and desmans 279

Order SCANDENTIA Tree shrews Family: Tree shrews 289

Order DERMOPTERA Colugos Family: Colugos 299

Order CHIROPTERA Bats 307

Family: Old World fruit bats I: Pteropus 319

II: All other genera 333

Family: Mouse-tailed bats 351

Family: Sac-winged bats, sheath-tailed bats, and ghost bats 355

Family: Kitti’s hog-nosed bats 367

Family: Slit-faced bats 371

Family: False vampire bats 379

Family: Horseshoe bats 387

Family: Old World leaf-nosed bats 401

Family: American leaf-nosed bats 413

Family: Moustached bats 435

Family: Bulldog bats 443

Family: New Zealand short-tailed bats 453

Family: Funnel-eared bats 459

Family: Smoky bats 467

Family: Disk-winged bats 473

Family: Old World sucker-footed bats 479

Family: Free-tailed bats and mastiff bats 483

Family: Vespertilionid bats I: Vespertilioninae 497

II: Other subfamilies 519

For further reading 527

Organizations 532

Contributors to the first edition 534

Glossary 541

Mammals species list 546

Geologic time scale 580

Index 581

Volume 14: Mammals III Order PRIMATES Primates 1

Family: Lorises and pottos 13

Family: Bushbabies 23

Family: Dwarf lemurs and mouse lemurs 35

Family: Lemurs 47

Family: Avahis, sifakas, and indris 63

Family: Sportive lemurs 73

Family: Aye-ayes 85

Family: Tarsiers 91

Family: New World monkeys I: Squirrel monkeys and capuchins 101

II: Marmosets, tamarins, and Goeldi’s monkey 115

Family: Night monkeys 135

Family: Sakis, titis, and uakaris 143

Family: Howler monkeys and spider monkeys 155

Family: Old World monkeys I: Colobinae 171

II: Cercopithecinae 187

Family: Gibbons 207

Family: Great apes and humans I: Great apes 225

II: Humans 241

Order CARNIVORA Land and marine carnivores 255

Family: Dogs, wolves, coyotes, jackals, and foxes 265

Dogs and cats 287

Family: Bears 295

Family: Raccoons and relatives 309

Family: Weasels, badgers, skunks, and otters 319

Family: Civets, genets, and linsangs 335

Family: Mongooses and fossa 347

Family: Aardwolf and hyenas 359

Family: Cats 369

Family: Eared seals, fur seals, and sea lions 393

Family: Walruses 409

Family: True seals 417

For further reading 437

Organizations 442

Contributors to the first edition 444

Glossary 451

Mammals species list 456

Geologic time scale 490

Index 491

Volume 15: Mammals IV Order CETACEA Whales, dolphins, and porpoises 1

Family: Ganges and Indus dolphins 13

Family: Baijis 19

Family: Franciscana dolphins 23

Family: Botos 27

Family: Porpoises 33

Family: Dolphins 41

Family: Beaked whales 59

Family: Sperm whales 73

Family: Belugas and narwhals 81

Family: Gray whales 93

Family: Pygmy right whales 103

Family: Right whales and bowhead whales 107

Family: Rorquals 119

The ungulates 131

Ungulate domestication 145

Order TUBULIDENTATA Aardvarks Family: Aardvarks 155

Order PROBOSCIDEA Elephants Family: Elephants 161

Order HYRACOIDEA Hyraxes Family: Hyraxes 177

Order SIRENIA Dugongs, sea cows, and manatees 191

Family: Dugongs and sea cows 199

Family: Manatees 205

Order PERISSODACTYLA Odd-toed ungulates 215

Family: Horses, zebras, and asses 225

Family: Tapirs 237

Family: Rhinoceroses 249

Order ARTIODACTYLA Even-toed ungulates 263

Family: Pigs 275

Family: Peccaries 291

Family: Hippopotamuses 301

Family: Camels, guanacos, llamas, alpacas, and vicuñas 313

Family: Chevrotains 325

Family: Deer Subfamily: Musk deer 335

Subfamily: Muntjacs 343

Subfamily: Old World deer 357

Subfamily: Chinese water deer 373

Subfamily: New World deer 379

Family: Okapis and giraffes 399

Family: Pronghorn 411

For further reading 419

Organizations 424

Contributors to the first edition 426

Glossary 433

Mammals species list 438

Geologic time scale 472

Index 473

Volume 16: Mammals V Family: Antelopes, cattle, bison, buffaloes, goats, and sheep 1

I: Kudus, buffaloes, and bison 11

II: Hartebeests, wildebeests, gemsboks, oryx, and reedbucks 27

III: Gazelles, springboks, and saiga antelopes 45

IV: Dikdiks, beiras, grysboks, and steenboks 59

V: Duikers 73

VI: Sheep, goats, and relatives 87

Order PHOLIDOTA Pangolins Family: Pangolins 107

Order RODENTIA Rodents 121

Family: Mountain beavers 131

Family: Squirrels and relatives I: Flying squirrels 135

II: Ground squirrels 143

III: Tree squirrels 163

Family: Beavers 177

Family: Pocket gophers 185

Family: Pocket mice, kangaroo rats, and kangaroo mice 199

Family: Birch mice, jumping mice, and jerboas 211

Family: Rats, mice, and relatives I: Voles and lemmings 225

II: Hamsters 239

III: Old World rats and mice 249

IV: South American rats and mice 263

V: All others 281

Family: Scaly-tailed squirrels 299

Family: Springhares 307

Family: Gundis 311

Family: Dormice 317

Family: Dassie rats 329

Family: Cane rats 333

Family: African mole-rats 339

Family: Old World porcupines 351

Family: New World porcupines 365

Family: Viscachas and chinchillas 377

Family: Pacaranas 385

Family: Cavies and maras 389

Family: Capybaras 401

Family: Agoutis 407

Family: Pacas 417

Family: Tuco-tucos 425

Family: Octodonts 433

Family: Chinchilla rats 443

Family: Spiny rats 449

Family: Hutias 461

Family: Giant hutias 469

Family: Coypus 473

Order LAGOMORPHA

Pikas, rabbits, and hares 479

Family: Pikas 491

Family: Hares and rabbits 505

Order MACROSCELIDEA Sengis Family: Sengis 517

For further reading 533

Organizations 538

Contributors to the first edition 540

Glossary 547

Mammals species list 552

Geologic time scale 586

Index 587

Earth is teeming with life No one knows exactly how many

distinct organisms inhabit our planet, but more than 5

mil-lion different species of animals and plants could exist,

rang-ing from microscopic algae and bacteria to gigantic elephants,

redwood trees and blue whales Yet, throughout this

won-derful tapestry of living creatures, there runs a single thread:

Deoxyribonucleic acid or DNA The existence of DNA, an

elegant, twisted organic molecule that is the building block

of all life, is perhaps the best evidence that all living

organ-isms on this planet share a common ancestry Our ancient

connection to the living world may drive our curiosity, and

perhaps also explain our seemingly insatiable desire for

in-formation about animals and nature Noted zoologist, E O

Wilson, recently coined the term “biophilia” to describe this

phenomenon The term is derived from the Greek bios

mean-ing “life” and philos meanmean-ing “love.” Wilson argues that we

are human because of our innate affinity to and interest in the

other organisms with which we share our planet They are,

as he says, “the matrix in which the human mind originated

and is permanently rooted.” To put it simply and

metaphor-ically, our love for nature flows in our blood and is deeply

en-grained in both our psyche and cultural traditions

Our own personal awakenings to the natural world are as

diverse as humanity itself I spent my early childhood in rural

Iowa where nature was an integral part of my life My father

and I spent many hours collecting, identifying and studying

local insects, amphibians and reptiles These experiences had

a significant impact on my early intellectual and even

spiri-tual development One event I can recall most vividly I had

collected a cocoon in a field near my home in early spring

The large, silky capsule was attached to a stick I brought the

cocoon back to my room and placed it in a jar on top of my

dresser I remember waking one morning and, there, perched

on the tip of the stick was a large moth, slowly moving its

delicate, light green wings in the early morning sunlight It

took my breath away To my inexperienced eyes, it was one

of the most beautiful things I had ever seen I knew it was a

moth, but did not know which species Upon closer

exami-nation, I noticed two moon-like markings on the wings and

also noted that the wings had long “tails”, much like the

ubiq-uitous tiger swallow-tail butterflies that visited the lilac bush

in our backyard Not wanting to suffer my ignorance any

longer, I reached immediately for my Golden Guide to North

American Insects and searched through the section on moths

and butterflies It was a luna moth! My heart was poundingwith the excitement of new knowledge as I ran to share thediscovery with my parents

I consider myself very fortunate to have made a living as

a professional biologist and conservationist for the past 20years I’ve traveled to over 30 countries and six continents tostudy and photograph wildlife or to attend related conferencesand meetings Yet, each time I encounter a new and unusualanimal or habitat my heart still races with the same excite-ment of my youth If this is biophilia, then I certainly possess

it, and it is my hope that others will experience it too I amtherefore extremely proud to have served as the series editor

for the Gale Group’s rewrite of Grzimek’s Animal Life clopedia, one of the best known and widely used reference works on the animal world Grzimek’s is a celebration of an-

Ency-imals, a snapshot of our current knowledge of the Earth’s credible range of biological diversity Although many other

in-animal encyclopedias exist, Grzimek’s Animal Life Encyclopedia

remains unparalleled in its size and in the breadth of topicsand organisms it covers

The revision of these volumes could not come at a moreopportune time In fact, there is a desperate need for a deeperunderstanding and appreciation of our natural world Manyspecies are classified as threatened or endangered, and the sit-uation is expected to get much worse before it gets better.Species extinction has always been part of the evolutionaryhistory of life; some organisms adapt to changing circum-stances and some do not However, the current rate of speciesloss is now estimated to be 1,000–10,000 times the normal

“background” rate of extinction since life began on Earthsome 4 billion years ago The primary factor responsible forthis decline in biological diversity is the exponential growth

of human populations, combined with peoples’ unsustainableappetite for natural resources, such as land, water, minerals,oil, and timber The world’s human population now exceeds

6 billion, and even though the average birth rate has begun

to decline, most demographers believe that the global humanpopulation will reach 8–10 billion in the next 50 years Much

of this projected growth will occur in developing countries inCentral and South America, Asia and Africa—regions that arerich in unique biological diversity

• • • • •

Foreword

Finding solutions to conservation challenges will not be

easy in today’s human-dominated world A growing number

of people live in urban settings and are becoming increasingly

isolated from nature They “hunt” in supermarkets and malls,

live in apartments and houses, spend their time watching

tele-vision and searching the World Wide Web Children and

adults must be taught to value biological diversity and the

habitats that support it Education is of prime importance now

while we still have time to respond to the impending crisis

There still exist in many parts of the world large numbers of

biological “hotspots”—places that are relatively unaffected by

humans and which still contain a rich store of their original

animal and plant life These living repositories, along with

se-lected populations of animals and plants held in

profession-ally managed zoos, aquariums and botanical gardens, could

provide the basis for restoring the planet’s biological wealth

and ecological health This encyclopedia and the collective

knowledge it represents can assist in educating people about

animals and their ecological and cultural significance Perhaps

it will also assist others in making deeper connections to

na-ture and spreading biophilia Information on the

conserva-tion status, threats and efforts to preserve various species have

been integrated into this revision We have also included

in-formation on the cultural significance of animals, including

their roles in art and religion

It was over 30 years ago that Dr Bernhard Grzimek, then

director of the Frankfurt Zoo in Frankfurt, Germany, edited

the first edition of Grzimek’s Animal Life Encyclopedia Dr

Grz-imek was among the world’s best known zoo directors and

conservationists He was a prolific author, publishing nine

books Among his contributions were: Serengeti Shall Not Die,

Rhinos Belong to Everybody and He and I and the Elephants Dr.

Grzimek’s career was remarkable He was one of the first

modern zoo or aquarium directors to understand the

impor-tance of zoo involvement in in situ conservation, that is, of

their role in preserving wildlife in nature During his tenure,

Frankfurt Zoo became one of the leading western advocates

and supporters of wildlife conservation in East Africa Dr

Grzimek served as a Trustee of the National Parks Board of

Uganda and Tanzania and assisted in the development of

sev-eral protected areas The film he made with his son Michael,

Serengeti Shall Not Die, won the 1959 Oscar for best

docu-mentary

Professor Grzimek has recently been criticized by some

for his failure to consider the human element in wildlife

con-servation He once wrote: “A national park must remain a

pri-mordial wilderness to be effective No men, not even native

ones, should live inside its borders.” Such ideas, although

con-sidered politically incorrect by many, may in retrospect

actu-ally prove to be true Human populations throughout Africa

continue to grow exponentially, forcing wildlife into small

is-lands of natural habitat surrounded by a sea of humanity The

illegal commercial bushmeat trade—the hunting of

endan-gered wild animals for large scale human consumption—is

pushing many species, including our closest relatives, the

go-rillas, bonobos and chimpanzees, to the brink of extinction

The trade is driven by widespread poverty and lack of

eco-nomic alternatives In order for some species to survive it will

be necessary, as Grzimek suggested, to establish and enforce

a system of protected areas where wildlife can roam free fromexploitation of any kind

While it is clear that modern conservation must take theneeds of both wildlife and people into consideration, what willthe quality of human life be if the collective impact of short-term economic decisions is allowed to drive wildlife popula-tions into irreversible extinction? Many rural populationsliving in areas of high biodiversity are dependent on wild an-imals as their major source of protein In addition, wildlifetourism is the primary source of foreign currency in many de-veloping countries and is critical to their financial and socialstability When this source of protein and income is gone,what will become of the local people? The loss of species isnot only a conservation disaster; it also has the potential to

be a human tragedy of immense proportions Protected eas, such as national parks, and regulated hunting in areas out-side of parks are the only solutions What critics do not realize

ar-is that the fate of wildlife and people in developing countries

is closely intertwined Forests and savannas emptied of wildlifewill result in hungry, desperate people, and will, in the long-term lead to extreme poverty and social instability Dr Grz-imek’s early contributions to conservation should berecognized, not only as benefiting wildlife, but as benefitinglocal people as well

Dr Grzimek’s hope in publishing his Animal Life pedia was that it would “ disseminate knowledge of the ani-

Encyclo-mals and love for them”, so that future generations would

“ have an opportunity to live together with the great sity of these magnificent creatures.” As stated above, our goals

diver-in producdiver-ing this updated and revised edition are similar.However, our challenges in producing this encyclopedia weremore formidable The volume of knowledge to be summa-rized is certainly much greater in the twenty-first century than

it was in the 1970’s and 80’s Scientists, both professional andamateur, have learned and published a great deal about theanimal kingdom in the past three decades, and our under-standing of biological and ecological theory has also pro-gressed Perhaps our greatest hurdle in producing this revisionwas to include the new information, while at the same time

retaining some of the characteristics that have made Grzimek’s Animal Life Encyclopedia so popular We have therefore strived

to retain the series’ narrative style, while giving the

informa-tion more organizainforma-tional structure Unlike the original imek’s, this updated version organizes information under

Grz-specific topic areas, such as reproduction, behavior, ecologyand so forth In addition, the basic organizational structure isgenerally consistent from one volume to the next, regardless

of the animal groups covered This should make it easier forusers to locate information more quickly and efficiently Likethe original Grzimek’s, we have done our best to avoid anyoverly technical language that would make the work difficult

to understand by non-biologists When certain technical pressions were necessary, we have included explanations orclarifications

ex-Considering the vast array of knowledge that such a workrepresents, it would be impossible for any one zoologist tohave completed these volumes We have therefore sought spe-cialists from various disciplines to write the sections with

which they are most familiar As with the original Grzimek’s,

we have engaged the best scholars available to serve as topic

editors, writers, and consultants There were some complaints

about inaccuracies in the original English version that may

have been due to mistakes or misinterpretation during the

complicated translation process However, unlike the

origi-nal Grzimek’s, which was translated from German, this

revi-sion has been completely re-written by English-speaking

scientists This work was truly a cooperative endeavor, and I

thank all of those dedicated individuals who have written,

edited, consulted, drawn, photographed, or contributed to its

production in any way The names of the topic editors,

au-thors, and illustrators are presented in the list of contributors

in each individual volume

The overall structure of this reference work is based on

the classification of animals into naturally related groups, a

discipline known as taxonomy or biosystematics Taxonomy

is the science through which various organisms are

discov-ered, identified, described, named, classified and catalogued

It should be noted that in preparing this volume we adopted

what might be termed a conservative approach, relying

pri-marily on traditional animal classification schemes

Taxon-omy has always been a volatile field, with frequent arguments

over the naming of or evolutionary relationships between

var-ious organisms The advent of DNA fingerprinting and other

advanced biochemical techniques has revolutionized the field

and, not unexpectedly, has produced both advances and

con-fusion In producing these volumes, we have consulted with

specialists to obtain the most up-to-date information

possi-ble, but knowing that new findings may result in changes at

any time When scientific controversy over the classification

of a particular animal or group of animals existed, we did our

best to point this out in the text

Readers should note that it was impossible to include as

much detail on some animal groups as was provided on

oth-ers For example, the marine and freshwater fish, with vast

numbers of orders, families, and species, did not receive asdetailed a treatment as did the birds and mammals Due topractical and financial considerations, the publishers couldprovide only so much space for each animal group In suchcases, it was impossible to provide more than a broad overviewand to feature a few selected examples for the purposes of il-lustration To help compensate, we have provided a few keybibliographic references in each section to aid those inter-ested in learning more This is a common limitation in all ref-

erence works, but Grzimek’s Encyclopedia of Animal Life is still

the most comprehensive work of its kind

I am indebted to the Gale Group, Inc and Senior EditorDonna Olendorf for selecting me as Series Editor for this pro-ject It was an honor to follow in the footsteps of Dr Grz-imek and to play a key role in the revision that still bears his

name Grzimek’s Animal Life Encyclopedia is being published

by the Gale Group, Inc in affiliation with my employer, theAmerican Zoo and Aquarium Association (AZA), and I wouldlike to thank AZA Executive Director, Sydney J Butler; AZAPast-President Ted Beattie (John G Shedd Aquarium,Chicago, IL); and current AZA President, John Lewis (JohnBall Zoological Garden, Grand Rapids, MI), for approving

my participation I would also like to thank AZA tion and Science Department Program Assistant, MichaelSouza, for his assistance during the project The AZA is a pro-fessional membership association, representing 215 accred-ited zoological parks and aquariums in North America AsDirector/William Conway Chair, AZA Department of Con-servation and Science, I feel that I am a philosophical de-scendant of Dr Grzimek, whose many works I have collectedand read The zoo and aquarium profession has come a longway since the 1970s, due, in part, to innovative thinkers such

Conserva-as Dr Grzimek I hope this latest revision of his work willcontinue his extraordinary legacy

Silver Spring, Maryland, 2001

Michael Hutchins

Series Editor

Gzimek’s Animal Life Encyclopedia is an internationally

prominent scientific reference compilation, first published in

German in the late 1960s, under the editorship of zoologist

Bernhard Grzimek (1909-1987) In a cooperative effort

be-tween Gale and the American Zoo and Aquarium Association,

the series is being completely revised and updated for the first

time in over 30 years Gale is expanding the series from 13

to 17 volumes, commissioning new color images, and

updat-ing the information while also makupdat-ing the set easier to use

The order of revisions is:

Vol 8–11: Birds I–IV

Vol 6: Amphibians

Vol 7: Reptiles

Vol 4–5: Fishes I–II

Vol 12–16: Mammals I–V

Vol 1: Lower Metazoans and Lesser Deuterostomes

Vol 2: Protostomes

Vol 3: Insects

Vol 17: Cumulative Index

Organized by taxonomy

The overall structure of this reference work is based on

the classification of animals into naturally related groups, a

discipline known as taxonomy—the science through which

various organisms are discovered, identified, described,

named, classified, and catalogued Starting with the simplest

life forms, the lower metazoans and lesser deuterostomes, in

volume 1, the series progresses through the more complex

animal classes, culminating with the mammals in volumes

12–16 Volume 17 is a stand-alone cumulative index

Organization of chapters within each volume reinforces

the taxonomic hierarchy In the case of the Mammals

vol-umes, introductory chapters describe general characteristics

of all organisms in these groups, followed by taxonomic

chap-ters dedicated to Order, Family, or Subfamily Species

ac-counts appear at the end of the Family and Subfamily chapters

To help the reader grasp the scientific arrangement, each type

of chapter has a distinctive color and symbol:

●=Order Chapter (blue background)

●▲=Monotypic Order Chapter (green background)

▲=Family Chapter (yellow background)

=Subfamily Chapter (yellow background)Introductory chapters have a loose structure, reminiscent

of the first edition While not strictly formatted, Order ters are carefully structured to cover basic information aboutmember families Monotypic orders, comprised of a singlefamily, utilize family chapter organization Family and sub-family chapters are most tightly structured, following a pre-scribed format of standard rubrics that make information easy

chap-to find and understand Family chapters typically include:Thumbnail introduction

Common nameScientific nameClass

OrderSuborderFamilyThumbnail descriptionSize

Number of genera, speciesHabitat

Conservation statusMain essay

Evolution and systematicsPhysical characteristicsDistribution

HabitatBehaviorFeeding ecology and dietReproductive biologyConservation statusSignificance to humansSpecies accounts

Common nameScientific nameSubfamilyTaxonomyOther common namesPhysical characteristicsDistribution

HabitatBehavior

• • • • •

How to use this book

Feeding ecology and diet

Color graphics enhance understanding

Grzimek’s features approximately 3,000 color photos,

in-cluding approximately 1,560 in five Mammals volumes; 3,500

total color maps, including nearly 550 in the Mammals

vol-umes; and approximately 5,500 total color illustrations,

in-cluding approximately 930 in the Mammals volumes Each

featured species of animal is accompanied by both a

distrib-ution map and an illustration

All maps in Grzimek’s were created specifically for the

ject by XNR Productions Distribution information was

pro-vided by expert contributors and, if necessary, further

researched at the University of Michigan Zoological Museum

library Maps are intended to show broad distribution, not

definitive ranges

All the color illustrations in Grzimek’s were created

specif-ically for the project by Michigan Science Art Expert

con-tributors recommended the species to be illustrated and

provided feedback to the artists, who supplemented this

in-formation with authoritative references and animal skins from

University of Michgan Zoological Museum library In

addi-tion to species illustraaddi-tions, Grzimek’s features conceptual

drawings that illustrate characteristic traits and behaviors

About the contributors

The essays were written by scientists, professors, and other

professionals Grzimek’s subject advisors reviewed the

com-pleted essays to insure consistency and accuracy

Grzimek’s has been designed with ready reference in mind

and the editors have standardized information wherever

fea-sible For Conservation status, Grzimek’s follows the IUCN

Red List system, developed by its Species Survival sion The Red List provides the world’s most comprehensiveinventory of the global conservation status of plants and an-imals Using a set of criteria to evaluate extinction risk, theIUCN recognizes the following categories: Extinct, Extinct

Commis-in the Wild, Critically Endangered, Endangered, Vulnerable,Conservation Dependent, Near Threatened, Least Concern,and Data Deficient For a complete explanation of each cat-egory, visit the IUCN web page at <http://www.iucn.org/>

Series advisor

Michael Hutchins, PhD

Director of Conservation and Science/William Conway

Chair

American Zoo and Aquarium Association

Silver Spring, Maryland

Subject advisors

Volume 1: Lower Metazoans and Lesser Deuterostomes

Dennis A Thoney, PhD

Director, Marine Laboratory & Facilities

Humboldt State University

Arcata, California

Volume 2: Protostomes

Sean F Craig, PhD

Assistant Professor, Department of Biological Sciences

Humboldt State University

Arcata, California

Dennis A Thoney, PhD

Director, Marine Laboratory & Facilities

Humboldt State University

Research Associate, Department of Entomology

Natural History Museum

Los Angeles, California

Volumes 4–5: Fishes I– II

Paul V Loiselle, PhD

Curator, Freshwater Fishes

New York AquariumBrooklyn, New YorkDennis A Thoney, PhDDirector, Marine Laboratory & FacilitiesHumboldt State University

Arcata, California

Volume 6: Amphibians

William E Duellman, PhDCurator of Herpetology EmeritusNatural History Museum and Biodiversity Research Center

University of KansasLawrence, Kansas

Volume 7: Reptiles

James B Murphy, DScSmithsonian Research AssociateDepartment of HerpetologyNational Zoological ParkWashington, DC

Volumes 8–11: Birds I–IV

Walter J Bock, PhDPermanent secretary, International Ornithological Congress

Professor of Evolutionary BiologyDepartment of Biological Sciences,Columbia University

New York, New YorkJerome A Jackson, PhDProgram Director, Whitaker Center for Science, Mathe-matics, and Technology Education

Florida Gulf Coast University

Ft Myers, Florida

Volumes 12–16: Mammals I–V

Valerius Geist, PhDProfessor Emeritus of Environmental ScienceUniversity of Calgary

Calgary, AlbertaCanada

• • • • •

Advisory boards

Devra G Kleiman, PhD

Smithsonian Research Associate

National Zoological Park

Washington, DC

Library advisors

James Bobick

Head, Science & Technology Department

Carnegie Library of Pittsburgh

Pittsburgh, Pennsylvania

Linda L Coates

Associate Director of Libraries

Zoological Society of San Diego Library

San Diego, California

Lloyd Davidson, PhD

Life Sciences bibliographer and head, Access Services

Seeley G Mudd Library for Science and Engineering

Evanston, Illinois

Thane JohnsonLibrarianOklahoma City ZooOklahoma City, OklahomaCharles Jones

Library Media SpecialistPlymouth Salem High SchoolPlymouth, Michigan

Ken KisterReviewer/General Reference teacherTampa, Florida

Richard NaglerReference LibrarianOakland Community CollegeSouthfield Campus

Southfield, MichiganRoland PersonLibrarian, Science DivisionMorris Library

Southern Illinois UniversityCarbondale, Illinois

William Arthur Atkins

Atkins Research and Consulting

Normal, Illinois

Adrian A Barnett, PhD

Centre for Research in Evolutionary

Anthropology

School of Life Sciences

University of Surrey Roehampton

West Will, London

Origin Natural Science

York, United Kingdom

Cynthia Berger, MSNational Association of Science WritersRichard E Bodmer, PhD

Durrell Institute of Conservation andEcology

University of KentCanterbury, KentUnited KingdomDaryl J Boness, PhDNational Zoological ParkSmithsonian InstitutionWashington, DCJustin S Brashares, PhDCentre for Biodiversity ResearchUniversity of British ColumbiaVancouver, British ColumbiaCanada

Hynek Burda, PhDDepartment of General Zoology Fac-ulty of Bio- and Geosciences

University of EssenEssen, GermanySusan Cachel, PhDDepartment of AnthropologyRutgers University

New Brunswick, New JerseyAlena Cervená, PhDDepartment of ZoologyNational Museum PragueCzech Republic

Jaroslav Cerveny, PhDInstitute of Vertebrate BiologyCzech Academy of SciencesBrno, Czech RepublicDavid J Chivers, MA, PhD, ScDHead, Wildlife Research GroupDepartment of Anatomy

University of CambridgeCambridge, United KingdomJasmin Chua, MS

Freelance WriterLee Curtis, MADirector of PromotionsFar North Queensland Wildlife Res-cue Association

Far North Queensland, AustraliaGuillermo D’Elía, PhD

Departamento de Biología AnimalFacultad de Ciencias

Universidad de la RepúblicaMontevideo, UruguayTanya DeweyUniversity of Michigan Museum ofZoology

Ann Arbor, MichiganCraig C Downer, PhDAndean Tapir FundMinden, NevadaAmy E DunhamDepartment of Ecology and EvolutionState University of New York at StonyBrook

Stony Brook, New YorkStewart K Eltringham, PhDDepartment of ZoologyUniversity of CambridgeCambridge, United Kingdom

Melville Brockett Fenton, PhDDepartment of BiologyUniversity of Western OntarioLondon, Ontario

CanadaKevin F Fitzgerald, BSFreelance Science WriterSouth Windsor, Connecticut

• • • • •

Contributing writers

Marine Mammal Division

Silver Spring, Maryland

Kenneth C Gold, PhD

Chicago, Illinois

Steve Goodman, PhD

Field Museum of Natural History

Chicago, Illinois and

St Louis, Missouri and The Charles

Darwin Research Station

Galápagos Islands, Ecuador

Brian W Grafton, PhD

Department of Biological Sciences

Kent State University

Museum of Natural Science and

De-partment of Biological Sciences

Louisiana State University

Baton Rouge, Louisiana

Alton S Harestad, PhDFaculty of ScienceSimon Fraser University BurnabyVancouver, British ColumbiaCanada

Robin L HayesBat Conservation of MichiganKristofer M Helgen

School of Earth and EnvironmentalSciences

University of AdelaideAdelaide, AustraliaEckhard W Heymann, PhDDepartment of Ethology and EcologyGerman Primate Center

Göttingen, GermanyHannah Hoag, MSScience JournalistHendrik Hoeck, PhDMax-Planck- Institut für Verhal-tensphysiologie

Seewiesen, GermanyDavid Holzman, BAFreelance WriterJournal Highlights EditorAmerican Society for MicrobiologyRodney L Honeycutt, PhDDepartments of Wildlife and FisheriesSciences and Biology and Faculty ofGenetics

Texas A&M UniversityCollege Station, TexasIvan Horácek, Prof RNDr, PhDHead of Vertebrate ZoologyCharles University PraguePraha, Czech RepublicBrian Douglas Hoyle, PhDPresident, Square Rainbow LimitedBedford, Nova Scotia

CanadaGraciela Izquierdo, PhDSección EtologíaFacultad de CienciasUniversidad de la República Orientaldel Uruguay

Montevideo, UruguayJennifer U M Jarvis, PhDZoology DepartmentUniversity of Cape TownRondebosch, South Africa

Christopher Johnson, PhDDepartment of Zoology and TropicalEcology

James Cook UniversityTownsville, QueenslandAustralia

Menna Jones, PhDUniversity of Tasmania School of Zo-ology

Hobart, TasmaniaAustralia

Mike J R Jordan, PhDCurator of Higher VertebratesNorth of England Zoological SocietyChester Zoo

Upton, ChesterUnited KingdomCorliss KarasovScience WriterMadison, WisconsinTim Karels, PhDDepartment of Biological SciencesAuburn University

Auburn, AlabamaSerge Larivière, PhDDelta Waterfowl FoundationManitoba, Canada

Adrian ListerUniversity College LondonLondon, United Kingdom

W J Loughry, PhDDepartment of BiologyValdosta State UniversityValdosta, GeorgiaGeoff Lundie-Jenkins, PhDQueensland Parks and Wildlife ServiceQueensland, Australia

Peter W W Lurz, PhDCentre for Life Sciences ModellingSchool of Biology

University of NewcastleNewcastle upon Tyne, United King-dom

Colin D MacLeod, PhDSchool of Biological Sciences (Zool-ogy)

University of AberdeenAberdeen, United KingdomJames Malcolm, PhDDepartment of BiologyUniversity of RedlandsRedlands, California

David P Mallon, PhD

Glossop

Derbyshire, United Kingdom

Robert D Martin, BA (Hons), DPhil,

Department of Conservation Biology

Conservation and Research Center

Smithsonian National Zoological Park

Mexico City, Mexico

Leslie Ann Mertz, PhD

Fish Lake Biological Program

Wayne State University

Texas A&M University at Galveston

Marine Mammal Research Program

Galveston, Texas

Virginia L Naples, PhD

Department of Biological Sciences

Northern Illinois University

Sandy, BedfordshireUnited KingdomCarsten Niemitz, PhDProfessor of Human BiologyDepartment of Human Biology andAnthropology

Freie Universität BerlinBerlin, GermanyDaniel K Odell, PhDSenior Research BiologistHubbs-SeaWorld Research InstituteOrlando, Florida

Bart O’Gara, PhDUniversity of Montana (adjunct retiredprofessor)

Director, Conservation ForceNorman Owen-Smith, PhDResearch Professor in African EcologySchool of Animal, Plant and Environ-mental Sciences

University of the WitwatersrandJohannesburg, South AfricaMalcolm Pearch, PhDHarrison InstituteSevenoaks, KentUnited KingdomKimberley A Phillips, PhDHiram College

Hiram, OhioDavid M Powell, PhDResearch AssociateDepartment of Conservation BiologyConservation and Research CenterSmithsonian National Zoological ParkWashington, DC

Jan A Randall, PhDDepartment of BiologySan Francisco State UniversitySan Francisco, CaliforniaRandall Reeves, PhDOkapi Wildlife AssociatesHudson, Quebec

CanadaPeggy Rismiller, PhDVisiting Research FellowDepartment of Anatomical SciencesUniversity of Adelaide

Adelaide, Australia

Konstantin A Rogovin, PhDA.N Severtsov Institute of Ecologyand Evolution RAS

Moscow, RussiaRandolph W Rose, PhDSchool of ZoologyUniversity of TasmaniaHobart, TasmaniaAustralia

Frank RosellTelemark University CollegeTelemark, Norway

Gretel H SchuellerScience and Environmental WriterBurlington, Vermont

Bruce A Schulte, PhDDepartment of BiologyGeorgia Southern UniversityStatesboro, Georgia

John H Seebeck, BSc, MSc, FAMSAustralia

Melody Serena, PhDConservation BiologistAustralian Platypus ConservancyWhittlesea, Australia

David M Shackleton, PhDFaculty of Agricultural of SciencesUniversity of British ColumbiaVancouver, British ColumbiaCanada

Robert W Shumaker, PhDIowa Primate Learning SanctuaryDes Moines, Iowa and Krasnow Insti-tute at George Mason UniversityFairfax, Virginia

Andrew T Smith, PhDSchool of Life SciencesArizona State UniversityPhoenix, ArizonaKaren B Strier, PhDDepartment of AnthropologyUniversity of WisconsinMadison, WisconsinKaryl B Swartz, PhDDepartment of PsychologyLehman College of The City Univer-sity of New York

Bronx, New YorkBettina Tassino, MScSección Etología

Department of Biological Sciences

Western Illinois University-Quad

Berlin, GermanySue WallaceFreelance WriterSanta Rosa, CaliforniaLindy Weilgart, PhDDepartment of BiologyDalhousie UniversityHalifax, Nova ScotiaCanada

Randall S Wells, PhDChicago Zoological SocietyMote Marine LaboratorySarasota, Florida

Nathan S WeltonFreelance Science WriterSanta Barbara, CaliforniaPatricia Wright, PhDState University of New York at StonyBrook

Stony Brook, New YorkMarcus Young Owl, PhDDepartment of Anthropology and Department of Biological SciencesCalifornia State UniversityLong Beach, CaliforniaJan Zima, PhDInstitute of Vertebrate BiologyAcademy of Sciences of the Czech Republic

Brno, Czech Republic

Drawings by Michigan Science Art

Joseph E Trumpey, Director, AB, MFA

Science Illustration, School of Art and Design, University

of Michigan

Wendy Baker, ADN, BFA

Ryan Burkhalter, BFA, MFA

Brian Cressman, BFA, MFA

Emily S Damstra, BFA, MFA

Maggie Dongvillo, BFA

Barbara Duperron, BFA, MFA

Jarrod Erdody, BA, MFA

Dan Erickson, BA, MS

Patricia Ferrer, AB, BFA, MFA

George Starr Hammond, BA, MS, PhD

Gillian Harris, BA

Jonathan Higgins, BFA, MFA

Amanda Humphrey, BFAEmilia Kwiatkowski, BS, BFAJacqueline Mahannah, BFA, MFAJohn Megahan, BA, BS, MSMichelle L Meneghini, BFA, MFAKatie Nealis, BFA

Laura E Pabst, BFAAmanda Smith, BFA, MFAChristina St.Clair, BFABruce D Worden, BFAKristen Workman, BFA, MFAThanks are due to the University of Michigan, Museum

of Zoology, which provided specimens that served as els for the images

No order of marsupials has suffered so badly as a result of

European settlement as the Peramelemorphia Before the

ar-rival of Europeans, bandicoots were plentiful, revered by the

aboriginal peoples of Australia, and valued as a source of food

by both the aborigines and the native peoples of New Guinea

By the twentieth century, their fortunes in Australia were in

steep decline; three species became extinct and at the

begin-ning of the twenty first century, others are still under serious

threat of the same fate

The first Europeans viewed bandicoots with some disdain,

purely because of their appearance Writing in 1805,

natu-ralist Geoffroy wrote “their muzzle, which is much too

long, gives them an air exceedingly stupid.” Their rat-like

shape led to the erroneous name of bandicoot—the Indian

word meaning “pig-rat,” originally given to the greater

bandicoot rat Bandicota indica, of Southeast Asia Disparaging

attitudes have continued into modern times The word

“bandicoot” is still used in the Australian vernacular as a mild

term of abuse

Dismissive attitudes have traditionally been accompanied

by scientific neglect In the classic volume Bandicoots and

Bil-bies (1990), Lyne noted that of 400 references to bandicoots

in scientific journals between 1797 and 1984, more than half

were within the final 20 years Knowledge of this family is

still patchy, with the New Guinea species in particular

woe-fully little understood

Evolution and systematics

The discovery, at the beginning of this century, of an earlyEocene (55 million years ago) bandicoot more than twice theage of any fossil bandicoot previously recovered, may help toshed light on an order whose evolution and taxonomy are theobject of controversy Much of the confusion centers aroundshared physical characteristics with other major marsupialgroups

Some scientists argue that simple dentition suggests that theperameloids evolved from the dasyurids, an order which in-cludes quolls and phascogales Others claim that the presence

of the fused toes of the hind foot shows a closer evolutionaryrelationship with kangaroos, wombats, and other diprotodonts.Bandicoots are divided into two families Species of arid andtemperate forest belong to the Peramelidae, a family consist-ing of four genera and 10 species Some taxonomists treat thesubfamily Thylacomyinae as a complete family The rainforestbandicoots, found predominantly in New Guinea, sit withinthe family Peroryctidae, comprising four genera and 11 species

Physical characteristics

The public perception that “all bandicoots are much thesame” is understandable In appearance, this order has a greatdeal of uniformity, particularly in Australia, where the speciesare all roughly rabbit-sized There is more size variation in

New Guinea, where the largest of the Peroryctes is more than

Photo: An endangered western barred bandicoot

(Perameles bougainville) (Photo by © Jiri Lochman/

Lochman Transparencies Reproduced by

permis-sion.)

three times bigger than the smallest of the Microperoryctes

mouse bandicoots

Bandicoots have thick-set bodies with a short neck and, in

most species, a long, pointed snout The tail is short, except

in the greater bilby Macrotis lagotis, where it is long and

brush-like In the dry-country long-nosed bandicoots Perameles and

in bilbies, the ears are large, but the general pattern is for short

ears The front limbs are generally short The forefeet have

powerful, flat claws, used for digging The hind limbs are

longer, with powerful thigh muscles The hind feet are

elon-gated and, unique among marsupials, the second and third toes

are syndactylous, that is, fused together This fusion is

prob-ably an adaptation for grooming Bandicoots generally move

slowly in a bunny hop, with the front and back legs working

alternately They can, however, adopt a fast gallop and some

species use their strong back legs to make sudden leaps

Bandicoot teeth are suited to an insectivorous diet

Al-though small, they are sharp and the molars are slightly

pointed In common with dasyurids, bandicoots are

polypro-prodont, possessing four or five pairs of upper incisors and

three lower pairs

Distribution

Bandicoots are found in Australia and New Guinea,

in-cluding its surrounding islands Only two species show a range

overlap between the two countries—the northern brown

(Isoodon macrourus) and rufous spiny bandicoot (Echymipera

rufescens) The land masses have been connected

intermit-tently in recent times, suggesting that distribution of species

is governed by habitat rather than geographical differences

In Australia, bandicoots are largely confined to forested

coastal strips and offshore islands The greater bilby found in

central-northern parts of the dry interior is the exception.Distribution is more widespread in New Guinea, with boththe forested uplands and settled lowlands occupied

In Australia, distribution was formerly far wider Amongthe four arid zone species, the greater bilby is thought to havelived over 70% of the Australian landmass Three other

species—the lesser bilby (Macrotis leucura), pig-footed coot (Chaeropus ecaudatus), and desert bandicoot (Perameles eremiana)—all occupied large parts of the interior, but are now

extinct In 1845, Gould described the southern brown

bandi-coot (Isoodon obesulus) as “one of the very commonest of

Aus-tralian mammals.”

The range contraction of the northern brown bandicoot

in Queensland reflects shrinking distribution of Australianbandicoots under human pressure Once widespread in thecenter of the state, it has been forced out of open country byintensive livestock farming and now occupies only narrowstrips of land beside rivers

Habitat

In New Guinea, the habitats of a number of species are

linked to altitude For example, all three Microperoryctes mouse

bandicoots are found above 3,500 ft (1,000 m) The altitude species are confined to primary rainforest Among thelowland species of New Guinea and those of Australia, there

high-is evidence that bandicoots can occupy an extremely widerange of habitats

If there is a linking factor between species of Australia andthe New Guinea lowlands, it is their preference for habitatsthat are temporary by nature Areas that have been recentlyburned or cleared, such as light scrub or heath, generally have

a wider variety of vegetation and a greater number of tebrates than more established habitats These temporary, of-ten ecotonal, habitats are quickly occupied by bandicoots.Such exploitation explains the ready colonization of low-

inver-A rabbit-eared bandicoot (Macrotis lagotis) eating in inver-Alice Springs,

Northern Territory, Australia (Photo by Animals Animals ©R J B.

Goodale, OSF Reproduced by permission.)

A long-nosed bandicoot (Perameles nasuta) juvenile eating a bug in eastern Australia (Photo by Animals Animals ©K Atkinson, OSF Re- produced by permission.)

intensity farmland in New Guinea and suburban towns and

cities of Australia The downside to such opportunism is the

bandicoot’s reliance on a mosaic of vegetation at different

stages of growth If these become isolated or fragmented,

an-imals are unable to disperse at the point when a particular

habitat becomes unsuitable

Behavior

These marsupials are highly solitary, coming together only

to mate Parental bonds are broken just two months after birth

and juveniles show extremely high rates of dispersal If groups

of individuals are seen together, it is purely to exploit a

lo-calized food resource

Males show clear territorial aggression towards each other

During encounters, they mark the ground or vegetation with

scent from a gland behind the ear The two males give

warn-ing puffwarn-ing calls and may chase each other Rarely, the

con-flict is resolved by fighting, with both combatants approaching

the other raised on their hind legs

The males have home ranges that are generally several

times larger than those of the much smaller females A single

male home range can overlap that of a number of females

The disparity in range sizes is reflected in activity patterns females venture into the open almost exclusively to forage forfood Their time out of the nest will be limited further if theystill have young in the nest which require suckling By com-parison, males spend some time each night patrolling muchlarger areas, partly to chase off rival males and also in search

-of females in estrus

All bandicoot species studied are nocturnal Daytime nestsvary between species and habitats Bilbies are the only bandi-coots to dig burrows Other bandicoot species living in opencountry make their nests among piles of rocks, down rabbitburrows, or in tree holes They may dig a shallow hole in theground and cover it with grasses and dead vegetation Forest-dwelling bandicoots make use of plentiful ground cover bybuilding a heap of grasses, twigs, and humus and hollowingout an internal chamber

Feeding ecology and diet

Bandicoots are nocturnal, terrestrial foragers, reliant ontheir strong senses of smell and hearing to detect food Speciesstudied gain most of their food by using their powerful fore-limbs to dig numerous small, conical holes vertically into the

A golden bandicoot (Isoodon auratus) feeds on eggs in a green seaturtle (Chelonia mydas) nest during egg laying (Photo by © Jiri Lochman/Lochman Transparencies Reproduced by permission.)

earth or forest floor Some food is also taken directly from

the ground

All research points to bandicoots being omnivorous The

diet includes a wide range of surface and soil invertebrates,

such as ants and termites, beetles and their larvae,

earth-worms, moths, and spiders Birds’ eggs, small mammals, and

lizards are also eaten

Fungi and fruit are of seasonal importance to

forest-dwelling bandicoots In the few studies of New Guinea species,

the large-toothed bandicoot (Echymipera clara) feeds on Ficus

and pandanus fruits, while the spiny bandicoot (Echymipera

kalubu) has been observed eating a variety of fallen fruit.

Bandicoot dentition, together with a lack of adaptations in

the alimentary canal indicate that plant material is eaten

se-lectively, with little fibrous vegetation taken Seeds and

tu-bers are most often eaten Omnivorous feeding means that

the teeth, sharp and better equipped for a purely

insectivo-rous diet, become flattened with wear

Reproductive biology

Contact between the males and females of these solitary

animals is restricted to mating, when a male will follow the

female until she is ready to be mounted Mating varies

be-tween species and location; some bandicoots mate all year

round, while others are limited to six or eight months of the

year by factors such as day length, rainfall, and temperature

Females are polyestrous and mating is probably either

polyg-ynous or promiscuous

Bandicoot reproduction is unusual in two major respects

They have among the shortest gestation periods of any

mammals—just 12.5 days in the case of the northern brown

bandicoot Yet conversely, unique among marsupials, they

have an advanced form of placentation that is more akin to

that of eutherian mammals with significantly longer gestationperiods

While the embryo first develops with the aid of a yolk sacplacenta as is the case with other marsupials, it is nourished inthe latter stages of gestation by a chorioallantoic placenta, amore advanced physical attachment between the uterus of themother and the embryo, that allows the exchange of nutrition,respiratory gases, and excretia This connection is less sophis-ticated in the bandicoots however, since they lack villi—thefinger-like projections that link the outer membrane of theembryo with the wall of the uterus Oddly, the umbilical cordremains attached as the young leave the uterus and crawl intothe backward-facing pouch Since the attachment lasts only amatter of hours, the cord’s primary purpose at this stage ap-pears to be as a kind of safety rope

Although the female usually has eight teats, she rarely hasmore than four young at a time The young leave the pouch

at 49–50 days Weaning takes around 10 days, by which timethe next litter of half inch (1 cm)-long young are ready to oc-cupy the mother’s pouch Bandicoots become sexually maturewithin four months of birth, but this order’s fast reproduc-tive rate is offset by high mortality of the young Only justover one in 10 of all baby bandicoots will survive long enough

to mate Following maturity, life expectancy is 2.5–3.0 years

Conservation

At the beginning of the twenty-first century, there aresome signs that the downward trend in the fortune of bandi-coots may at least be slowing In the previous century, threespecies had plummeted to extinction even before scientistshad gained a clear understanding of their ecology Today, the

IUCN lists (as of 2002) the golden (Isoodon auratus) and ern barred bandicoot (Perameles gunnii) and greater bilby as Vulnerable and the western barred bandicoot (Perameles

east-Western barred bandicoot (Perameles bougainville) joeys suckling in mother’s pouch (Photo by © Jiri Lochman/Lochman Transparencies Reproduced by permission.)

A juvenile Raffray’s bandicoot (Peroryctes raffrayana) (Photo by Pavel

German Reproduced by permission.)

bougainville) as Endangered Seven New Guinea species are

given a Data Deficient rating

The factors which caused catastrophic declines in Australian

bandicoot populations and distribution during the nineteenth

and twentieth century are still of paramount significance

Con-tinued intensive grazing by cattle and sheep of former

bandi-coot habitat over much of the continent ensures that there is

no realistic possibility of recolonization without major changes

in land management In Victoria, for example, the hummock

grassland of kangaroo and wallaby grass was largely removed

in favor of ryegrass and clover to feed grazing livestock A lack

of floristic diversity meant that there was not enough food, or

shelter from predators and adverse weather to sustain the

pop-ulation of western barred bandicoots

Even supposing that livestock grazing could be reduced or

eliminated, an added complication is the presence of

intro-duced predators, especially foxes and cats The arrival of cats

on Hermite Island in Western Australia caused the extinction

of the golden bandicoot from that island, for example There

is also evidence that bandicoot populations are being

sup-pressed by transmission from cats of toxoplasmosis

Intro-duced rabbits have also been a major cause of population

declines through competition for food and habitat

While captive breeding programs for greater bilbies and

eastern barred bandicoots have proved fruitful, a prerequisite

of successful reintroductions into the wild appears to be theexclusion of predators, together with control of rabbits and kangaroos Exclusion by use of fences can only be effec-tive over very small areas In some unfenced areas wherebandicoots are present, conservation authorities are attempt-ing to limit predation In Sydney, the National Parks andWildlife Service began a fox control program in 2001, usingthe presence of the southern brown bandicoot as an indica-tor of success

Colonies of bilbies and western barred bandicoots are ing bred at a special facility within the Francois Peron Na-tional Park in Western Australia under the Project Edenconservation program, started in 1995 These colonies aresupplemented with animals from breeding programs at otheragencies such as the Kanyana Wildlife Rehabilitation Centre(bilby, western barred bandicoot) and are slated for the rein-troduction phase of the program

be-Scientists are still exploring the relative significance ofother factors in bandicoot declines In Western Australia, forexample, the extinctions of the pig-footed bandicoot anddesert bandicoot are now thought to have been precipitated

by the aborigines abandoning traditional burning practicesstarting in the 1930s The replacing of mosaic selective burn-ing by uncontrolled wildfires over very large areas left theseless mobile species unable to escape

A model of the extinct pig-footed bandicoot (Chaeropus ecaudatus) (Photo by Tom McHugh/Photo Researchers, Inc Reproduced by permission.)

The conservation of some species is hindered by the fact

that they do not live conveniently within protected areas One

fifth of Tasmania consists of nature preserves, yet this does

not protect bandicoots, since they live largely on the

periph-ery or outside of these sanctuary zones

The conservation status of several bandicoot species in

New Guinea remains something of a mystery Seven species

are classified by the IUCN as Data Deficient Partly, this is

a reflection of their location in remote and often inaccessiblemountain rainforest habitat But bandicoots are also notori-ously difficult to trap Their preference for natural rainforestfood rather than artificial bait means that population moni-toring is extremely difficult Hunting is widespread and com-mon in New Guinea and its islands, but without propercensuses, it is almost impossible to detect whether it is hav-ing a deleterious effect

Although killed incidentally by rabbit trappers, bandicootsmade little impression on European settlers throughout thenineteenth and much of the twentieth century The state ofNew South Wales, for example, first started giving them le-gal protection only in 1948, by which time three species hadbecome extinct

Fortunately, a growing perception in Australia of the portance of appreciating and protecting native fauna is nowstarting to benefit this order Foremost in the public relationsrevolution is the endangered greater bilby, whose human sup-porters launched a sustained campaign from the 1980s on-wards to substitute this rabbit-like bandicoot for the Easterbunny as an object of affection in the nation’s hearts—an iron-ically appropriate displacement, given that the introducedrabbit is one of the primary causes of this species’ decline

im-In well-populated areas of southeastern Australia, wherebandicoots come into contact with people, conservation or-ganizations, and state protection departments have made at-tempts to promote greater tolerance of bandicoots Residents

of suburbia are urged to adopt bush-friendly backyard dening using native plant species, and are encouraged to main-tain close control of family pets at night However, thebandicoots’ habit of digging conical holes in lawns and therisk of transmitting ticks to humans does not always makethem the most welcome of cohabitants

gar-A northern brown bandicoot (Isoodon macrourus) foraging at night.

(Photo by K Stepnell Bruce Coleman, Inc Reproduced by permssion.)

Resources

Books

Hoser, R Endangered Animals of Australia Sydney: Pearson,

1991

Macdonald, D The New Encyclopaedia of Mammals Oxford:

Oxford University Press, 2001

Nowak, R M Walker’s Mammals of the World Baltimore:

Johns Hopkins University Press, 1995

Seebeck, J H Brown, P R Wallis, R L and C M Kemper

Bandicoots and Bilbies New South Wales: Surrey Beatty and

8671 9151 E-mail: arid.recovery@wmc.com Web site:

<http://www.aridrecovery.org.au>

Department for Environment and Heritage GPO Box 1047,

Adelaide, South Australia 5001 Australia Phone: (8) 8204

1910 E-mail: environmentshop@saugov.sa.gov.au Web site:

<http://www.environment.sa.gov.au>

Environment Australia GPO Box 787, Canberra, Australian

Capital Territory 2601 Australia Phone: (2) 6274 1111

Web site: <http://www.ea.gov.au/>

New South Wales National Parks and Wildlife Service 102

George Street, Sydney, New South Wales 2000 Australia

Phone: (02) 9253 4600 Fax: (02) 9251 9192 E-mail:info@npws.nsw.gov.au Web site: <www.npws.nsw.gov.au/wildlife/factsheets/bandicoot.html>

Evolution and systematics

The order Peramelemorphia includes all the living

bandi-coots They possess four or five pairs of blunt incisors in

the upper jaw and three similar pairs in the lower jaw, and

are thus polyprotodont The hindfeet have the second and

third toes joined in syndactyly The order contains a single

super-family, the Perameloidea, which is divided into two

families: the Peramelidae contains all the non-spiny

bandi-coots and the pig-footed bandicoot (Chaeropus ecaudatus);

the Peroryctidae includes the spiny bandicoots While it

appears that the order is intermediate between dasyuroids

(polyprotodonts) and diprotodonts, the evolutionary origins

of the bandicoots remain contentious and opinion varies,

de-pendent on the significance given to dental or foot structure

Bandicoots may have evolved from dasyuroids, retaining

polyprotodonty and separately evolving syndactyly, or from

the diprotodonts, retaining their syndactyly and evolving

polyprotodonty But it is more plausible that they are derived

from a proto-perameloid ancestor that produced two lines,

one the terrestrial insectivorous/omnivorous bandicoots

and the other the arboreal, herbivorous possums Baverstock,

et al in 1990, suggested that this separation might have

occurred around 48 million years ago (mya) Such fossil bandicoots as have been described differ little from modernforms

The two families are discriminated by skull characteristics,that of peramelids being flattened in lateral view while theskull of peroryctids is more or less cylindrical Other skullcharacters have been described by Groves and Flannery in

1990 The fur in many peroryctids is harsh and spiny oryctids mostly inhabit rainforest, in contrast to the relativelydry habitats used by peramelids It is possible that the now-extinct pig-footed bandicoot should be separated from theother species within the Peramelinae, as it exhibits a number

Per-of distinguishing characters Per-of structure and behavior

Physical characteristics

Bandicoots are small marsupials with a long, pointed snout,and are stockily built, with short limbs and neck The ears aregenerally short and rounded, although more elongate in the

genus Perameles The pig-footed bandicoots have long, erect

ears The tail is thin and short in most species, although it is

Small to medium-sized marsupials, with long,

tapering snouts and short tails (most species);

ears small to large, especially pronounced in

rabbit-bandicoots; most species share a similar

body form and are uniform in color, although

some species have posterior barring or dorsal

longitudinal stripes

Size

Head and body length ranges from 6.7–10.4 in

(17–26.5 cm) in mouse bandicoot to 19.7–23.6

in (50–60 cm) in giant bandicoot; tail length

from 4.3–4.7 in (11–12 cm) (mouse bandicoot)

to 5.5–7.9 in (14–20 cm) (giant bandicoot); and

weight from 4.9–6.5 oz (140–185 g) (mouse

bandicoot) to 10.6 lb (4.8 kg) (giant bandicoot)

Number of genera, species

7 genera; 19 species

Habitat

Desert, grassland, woodland, forest, coastal

complexes, rainforest, semi-urban

Conservation status

Peramelidae: Extinct: 3 species; Endangered: 1

species; Vulnerable: 3 species; Peroryctidae:

Data Deficient: 7 species Distribution

Peramelidae: Australia, New Guinea; Peroryctidae: New Guinea, Indonesia (Irian Jaya, Seram), Australia

long and crested in the pig-footed bandicoot The teeth are

small, relatively even in size, and sharply pointed The

den-tal formula is generally (I1-5/1-3 C1/1 P1-3/1-3, M1-4/1-4)

but in Echymipera and Rhynchomeles there are only four pairs

of upper incisors The forefeet bear strong curved claws that

are used in conjunction with the elongate muzzle to dig food

items from the soil Digits I and V are reduced in all species,

and in Chaeropus only digits II and III are functional, giving

rise to the common name The hindfoot is elongate; digit I

is reduced or absent, digits II and III are joined in syndactyly,

digit IV is elongate, strong and powerful, while digit V is

re-duced or absent Fur coloration is generally drab and

un-adorned, being darker on the dorsal surface and lighter

ventrally Exceptions exist, however Perameles gunnii and

P bougainville have prominent pale posterior bars,

Microper-oryctes longicauda, M papuensis, and Echymipera echinista are

variously striped on the head and dorsum The pig-footed

bandicoot has a crested tail tipped with black

Distribution

Bandicoots are confined to Australia, New Guinea, and the

island of Seram Prior to European settlement of Australia,

bandicoots were widespread and at least one species was

pre-sent in any given locality across almost the whole of the

con-tinent, in virtually all habitats In the arid center of Australia,

up to five species may have been found, whereas in tropical

and temperate zones two or three species occurred Some

off-shore islands are now the only places in which certain speciessurvive Similarly, bandicoots occur throughout New Guinea,from the coast to the central high mountain ranges, and someforms are restricted to off-shore islands One species only oc-curs on Seram

Habitat

All species are terrestrial Australian habitats utilized byperamelids included: arid open-dense shrubland; sand plain,sand-ridge desert and spinifex grassland; temperate grasslandsand grassy woodlands; wet and dry open-forest; deciduousvine thickets; heath and heathy woodlands and open-forest;savanna woodland, and shrubby grassland Three species alsouse suburban gardens In New Guinea, peroryctids occupyrainforest—lowland, primary and secondary highland; wood-lands; subalpine grasslands; and are also found in gardens andregrowth forest The Seram Island bandicoot was only found

in tropical forest Altitudinal range for bandicoots is from level to 13,120 ft (4,000 m)

sea-Behavior

Mutual avoidance is the predominant social behavior andmost bandicoots are essentially solitary During courtship andmating, male and female bandicoots associate for a limitedtime and several males may mate with a single female Theyoung may follow their mother for a short time after perma-nent emergence from the nest Male-male interactions are al-ways aggressive and in captivity will result in serious injury

or death Most species are nocturnal, some more strictly sothan others, but southern brown bandicoots are often diur-

1

2

Adaptations for digging in bandicoots (Isoodon macrourus shown here).

1 Forepaw has long, strong claws, and digits I and V are reduced; 2.

The bandicoot’s pouch faces backwards (Illustration by Gillian Harris)

A northern brown bandicoot (Isoodon macrourus) foraging for insects

in leaf litter in Eucalyptus forest (Photo by B G Thomson/Photo searchers, Inc Reproduced by permission.)

Re-nal Bandicoots adopt several distinct postures when at rest,

but when alert will often stand tripedally, with one foreleg

raised and retracted towards the body, or stand erect on their

hindfeet Locomotion is quadrupedal and involves walking,

running, galloping, and leaping The latter is believed to be

an escape mechanism Vocalization is restricted to honks,

snorts, and sneezes, which may be used to clear the nostrils

after digging

Feeding ecology and diet

Bandicoots are opportunistic and omnivorous, although

the pig-footed bandicoot may have been more herbivorous

Most species obtain their food by first locating it through

ol-faction (and perhaps also by hearing) and then digging a

con-ical pit to where the invertebrate or plant material is situated

The diet includes adult and larval insects (especially

Coleoptera, Orthoptera, and Lepidoptera), earthworms,

cen-tipedes, seeds, bulbs, tubers, and hypogeous fungal

sporo-carps Small vertebrates such as lizards and mice are

occasionally eaten In garden areas, and in tropical rainforest,

fallen fruit is eaten

Reproductive biology

The pouch opens to the rear and contains two crescentic

rows of four nipples Litters vary from one to five (average

about two) in most species The gestation period is very

short—12.5 days in Perameles nasuta, P gunnii, and Isoodon macrourus These genera are polyestrous and the estrus cycle

is about 20–25 days Growth and development is rapid and

in some species sexual maturity may be reached at theee tofour months of age Bandicoots may breed throughout theyear, although some degree of seasonality is shown Such sea-sonality may be dependent on climatic conditions; for exam-ple, eastern barred bandicoots in Tasmania do not breedduring the coldest winter months, and the same species onthe mainland ceases breeding during periods of drought.Breeding may be initiated by an increase in food availability(perhaps related to rainfall events), rates of change in tem-perature, or photoperiod Mating is probably either polygy-nous or promiscuous

One of the most significant features of bandicoot duction is the presence of a functional chorioallantoic pla-centa in addition to the yolk-sac The placenta has evolvedindependently and is probably correlated with the rapid rate

(Perame-A northern brown bandicoot (Isoodon macrourus) on the grass (Photo

by Tom & Pam Gardner/FLPA–Images of Nature Reproduced by

per-mission.)

coot (P gunnii) is Critically Endangered; the Tasmanian form

is Vulnerable One species, the western barred bandicoot

(P bougainville) is Endangered—it is extinct on the main-land

and occurs only on Bernier and Dorre Islands in Shark Bay,Western Australia Four subspecies are Vulnerable—the main-land and Barrow Island forms of the golden bandicoot, Nuytssouthern brown bandicoot, and the Tasmanian form of theeastern barred bandicoot Among the other forms (mainly sub-species) at least three are Near Threatened

Peroryctidae: Little is known about the status of most

species One species, the Seram Island bandicoot chomeles prattorum), is known only from the type series col-

(Rhyn-lected in 1920 Several other species, including the mouse

bandicoot (Microperoryctes murina), David’s echymipera (Echymipera davidi), Menzies’ echymipera (E echinista), and Papuan bandicoot (Microperoryctes papuensis), are rarely en-

countered and may be Vulnerable

Significance to humans

Probably all species of peramelids were used as food by tive Australians The larger peroryctids are still hunted forfood in New Guinea Minor annoyance in suburban areas iscaused by bandicoots digging foraging holes in lawns

1 Pig-footed bandicoot (Chaeropus ecaudatus); 2 Northern brown bandicoot (Isoodon macrourus); 3 Raffray’s bandicoot (Peroryctes raffrayana);

4 Eastern barred bandicoot (Perameles gunnii); 5 Rufous spiny bandicoot (Echymipera rufescens) (Illustration by Gillian Harris)

Eastern barred bandicoot

Perameles gunnii

SUBFAMILY

Peramelinae

TAXONOMY

Perameles gunnii Gray, 1838, Tasmania, Australia.

OTHER COMMON NAMES

English: Barred bandicoot, Tasmanian barred bandicoot,

striped bandicoot, Gunn’s bandicoot; German:

Tasmanien-Langnasenbeutler

PHYSICAL CHARACTERISTICS

Head and body length is 10.6–13.8 in (270–350 mm); weight is

26.5–35.3 oz (750–1,000 g) Grayish brown fur with light stripes

on its hindquarters Large ears, tapered nose, and short tail

FEEDING ECOLOGY AND DIET

Food is mainly obtained by digging after locating food items

by smell Small pits are dug using the forefeet and the longnose Food is extracted and deftly manipulated in the frontfeet Eats earthworms, adult and larval insects, other inverte-brates, tubers, bulbs, and fallen fruit

REPRODUCTIVE BIOLOGY

Capable of breeding year-round but may cease in colder wintermonths at lower latitudes (Tasmania) or during hot, rainfall-deficient summers on the mainland Gestation period 12.5days, polyestrous, estrus cycle about 26 days Chorioallantoicplacenta formed at about 9.5 days of gestation and is retained

in the uterus after parturition Litter size one to five, averagetwo to 2.5 Pouch life about 55 days, weaned at 70–80 days.The nest is a grass and leaf-lined scraped depression Growth

is rapid and sexual maturity may be reached at about fourmonths Sequential litters may be born throughout the female’stwo to three year lifespan Mating is probably promiscuous

CONSERVATION STATUS

The mainland form is Critically Endangered It only occurs inminuscule numbers at one site in the wild A recovery pro-gram, involving reintroduction to protected sites of captive-bred animals has been in operation since 1989 The principalcontinuing threat is predation by introduced carnivores, partic-ularly red foxes and cats, for which species continuing control

is essential for the reintroduced populations to survive TheTasmanian population appears to be declining in some parts ofits range, such that it is locally threatened in its postulated fo-cal range but has, conversely, expanded into new areas as foresthas been felled and converted to pasture The main predator inTasmania is the cat

SIGNIFICANCE TO HUMANS

The eastern barred bandicoot was eaten by aboriginal tralians It is a minor annoyance to landholders in suburban ar-eas due to foraging in lawns ◆

Aus-Northern brown bandicoot

OTHER COMMON NAMES

English: Brindled bandicoot, large northern bandicoot; man: Grosse Kurznasenbeutler

Species accounts

Perameles gunnii

Isoodon macrourus

Peroryctes raffrayana

Areas of low ground cover including tall grass and low shrubs,

ir-respective of tree cover Grassland, woodland, open forest, rarely

in closed forest Gardens in settled areas In New Guinea, found

in grasslands and grassy savanna woodlands as well as gardens

BEHAVIOR

Nocturnal, solitary except when courting or mating or females

with young Males are aggressive and use a gland behind the

ear to scent-mark territory

FEEDING ECOLOGY AND DIET

Omnivorous Northern brown bandicoots mainly eat insects,

earthworms, and other invertebrates, but also include berries,

seeds, and plant fiber such as sugar cane in their diet Food is

obtained by digging conical pits with the strong forefeet after

detection by smell

REPRODUCTIVE BIOLOGY

In the southern part of its range, breeding occurs from late

win-ter to summer; further north breeding takes place year-round

There are eight nipples and litter size ranges from one to seven,

usually two to four The gestation period is 12.5 days and young

are weaned at about two months A chorioallantoic placenta is

formed and retained after parturition Northern brown

bandi-coots are polyestrous and promiscuous Growth is rapid and

sex-ual maturity is reached well before physical maturity The nest is

a heap of ground litter covering a shallow depression, with

en-trances at both ends Hollow logs are also used

CONSERVATION STATUS

Overall, common to abundant, but has suffered local extinction

due to altered habitat Still present in urban areas in New

South Wales, Queensland, and New Guinea, but such

popula-tions are at risk

SIGNIFICANCE TO HUMANS

The northern brown bandicoot was eaten by Aboriginal

Aus-tralians and is still hunted as food in New Guinea It is

consid-ered a minor annoyance due to digging in suburban lawns ◆

Head and body length was 9.1–10.2 in (230–260 mm); weight

was about 7 oz (200 g); comparatively long tail, despite its

ver-nacular, bearing a terminal crest Forefeet digits reduced to

give appearance of pig’s feet or deer hooves

DISTRIBUTION

Formerly found across much of arid Australia, including much

of inland Western Australia and South Australia, the southern

half of the Northern Territory and marginally in western

Queensland, New South Wales, and northwestern Victoria

HABITAT

In the central deserts, occurred on sand dunes and sand plains

with hummock grassland and tussock grass, sometimes with a

mulga (Acacia) overstory In the east, occupied grassy plains

and open woodland with a grass and shrub understory

FEEDING ECOLOGY AND DIET

The species’ tooth structure and gut anatomy suggest that it wasmore herbivorous than other bandicoots This notion is sup-ported by observations of feeding by captives, and stomach con-tent analysis Termites, ants, and other insects were also eaten

REPRODUCTIVE BIOLOGY

Breeding is speculated to have been in May and June The pouchhas eight nipples, but litters seem to have been one to two Prob-ably promiscuous

CONSERVATION STATUS

Extinct Last specimen collected in 1901 but Aboriginal mony indicates that it probably survived in parts of its rangeuntil the 1950s

OTHER COMMON NAMES

English: Long-legged bandicoot; German: Grossen

Neuguineanasenbeutler; Spanish: Bandicut de Raffray

PHYSICAL CHARACTERISTICS

Head and body length is 10.8–14.6 in (275–372 mm); weight is

22.9–35.3 oz (650–1,000 g) Unpatterned dark brown fur on

back and on the long tail Short, rounded ears

DISTRIBUTION

Widespread in New Guinea, absent only from the woodlands

and savanna of the south Altitudinal range from about 130 to

13,120 ft (40 to 4,000 m), but most common at about 3,940 ft

(1,200 m) along the central cordillera

HABITAT

Lowland rainforest, lowland hill and mid-mountain oak forest,

Nothofagus (beech) forest, mixed forest, and sub-alpine shrubs.

Prefers undisturbed forest

BEHAVIOR

Not known, but probably nocturnal

FEEDING ECOLOGY AND DIET

These bandicoots are reported to eat fruit, particularly that of figs

REPRODUCTIVE BIOLOGY

Females with pouch young have been captured between March

and December, and the species may breed throughout the year

Litter size is one to two It is possible that it nests communally,

but that is not confirmed One individual lived over three years

in captivity Mating is probably promiscuous

CONSERVATION STATUS

Common

SIGNIFICANCE TO HUMANS

Eaten by indigenous people ◆

Rufous spiny bandicoot

Echymipera rufescens

TAXONOMY

Perameles rufescens (Peters and Doria, 1875), Kei Islands,

In-donesia

OTHER COMMON NAMES

English: Long-nosed echymipera, spiny bandicoot, rufescentbandicoot; German: Dickkopf-Stachelnasenbeutler; Spanish;Echimipera Narizona

PHYSICAL CHARACTERISTICS

Head and body length is 11.8–16.1 in (300–410 mm); weight is17.6–70.5 oz (500–2,000 g) Very elongate snout Red-brown-black coarse, spiny dorsal fur, white ventrally Short, almostnaked black tail

DISTRIBUTION

Subspecies E r rufescens is found in the lowlands of northern,

eastern, and southern New Guinea, Aru Islands, and Kei

Is-lands E r australis is confined to Cape York, Australia.

HABITAT

In New Guinea is found only below 3,940 ft (1,200 m) Prefersrainforest but tolerates disturbed areas and grasslands Aus-tralian subspecies occurs in closed forest including mesophyllvine forest, notophyll vine forest, and gallery forest, but also isfound in eucalypt grassy woodland, coastal closed heath, andlow layered open forest

BEHAVIOR

Nocturnal Possibly uses burrows rather than nests for daytimeshelter, at least in New Guinea

FEEDING ECOLOGY AND DIET

Omnivorous, although prefers to eat insects

REPRODUCTIVE BIOLOGY

In New Guinea, pouch young have been recorded betweenMarch and October, but in Australia breeding may be moreseasonal, with an estrus in the dry season Possibly has lowerfertility than seen in other species of the genus Litter sizesfrom one to three are reported Probably promiscuous

Habitat and

Conservation status

Arid deserts and adjacent semi-arid areas and wood- lands Two to four young per litter Generally sleeps during the day, hidden in a nest of twigs, grass, leaves, and other ground litter.

Australia Termites, ants,

centi-pedes, moths, insect larvae, small reptiles, roots, and tubers.

Vulnerable

Southern brown bandicoot

Isoodon obesulus

English: Short-nosed bandicoot;

Spanish: Bandicut castaño

Prefer dense ground cover, tall grass, and low shrubbery

They live near swamps and rivers as well as in thick scrub in drier areas Generally solitary, except during breeding season Females carry young in pouch for 50 days

Australia Soil invertebrates and

insects as well as fruits, seeds, fungi, and some plant fibers.

Not threatened

[continued]

Common name /

Scientific name/

Other common names

Physical characteristics

Habitat and

Conservation status

Giant bandicoot

Peroryctes broadbenti

Spanish: Bandicut gigante

Dark brown with reddish buff flanks, underparts are near white Head and body length 6.9–7.9 in (17.5–20 cm), weight 11 lb (5 kg).

Lowland rainforest up to 6,560 ft (2,000 m) or more

Terrestrial, nocturnal, and generally solitary Twins have been observed only once.

Southeastern New Guinea.

Consists mainly of vegetable matter.

Data Deficient

Striped bandicoot

Peroryctes longicauda

Spanish: Bandicut rayado

Reddish brown or pale brown speckled with black above, dark middorsal line, paired lateral rump stripes, and/or dark eye stripes, underparts are rufous or buff Head and body length 9.4–12 in (23.9–30.3 cm), tail length 5.5–10.2 in (14.1–25.8 cm).

Upland forests from 3,280 to 14,763 ft (1,000–4,500 m).

Terrestrial, nocturnal, and generally solitary.

Central Range of New Guinea.

Consists mainly of vegetable matter.

Spanish: Bandicut papá

Upperparts dark with a prominent black middorsal line, dark lateral rump stripes and eye stripes Head and body length 6.8–7.8 in (17.5–20 cm), tail length 5.5–6.1 in (14–15.5 cm).

Highland forests Nocturnal, terrestrial, and generally solitary

Southeastern Papua New Guinea.

Consists mainly of vegetable matter.

Islands in dune scrub sys- tems Occupies nest during day Nocturnal

Two islands off the northwest coast of western Australia.

Small insects, fruit, and seeds.

Mainly in spinifex grasslands

Generally nocturnal Also develops pouch and holds young for 50 days.

Southern Northern Territory, northern South Australia, and southeastern Western Australia.

Small insects, fruit, and seeds.

Pouch opens to rear Head and body length 12–16.7 in (31–42.5 cm), tail length 4.7–6.1 in (12–15.5 cm), weight 1.8–2.5 lb (850–1,100 g).

Rainforest, wet and dry woodlands, and sometimes

in more open areas with little ground cover Mainly solitary and nocturnal.

Eastern coast of Australia.

Mainly insectivorous, although it also eats some plant material, and will occasionally eat worms, mice, and lizards.

Underparts are buff or brown Head and body length 7.9–19.7 in (20–50 cm), tail length 1.9–4.9 in (5–12.5 cm).

Rainforests from

0 to 5250 ft (0–1,600 m)

Solitary and highly intolerant

of their own kind.

New Guinea, Bismarck Archipelago, and Mysol Island.

Small insects, fruit, and seeds.

Underparts are buff or brown Head and body length 7.9–19.7 in (20–50 cm), tail length 1.9–4.9 in (5–12.5 cm).

Hill forests from 985 to 5,575

ft (300–1,700 m) Generally nocturnal and solitary.

Northern Irian Jaya and Yapen.

Small insects, fruit, and seeds.

Data Deficient

Mouse bandicoot

Microperoryctes murina

German: Der Mausnasenbeutler;

Spanish: Bandicut ratón

Dark gray, lighter underparts Feet have scattered white hairs, tail is dark fuscous.

Head and body length 1.9–6.9 in (15–

Weyland Mountain of western New Guinea and Vogelkop Peninsula at extreme tip of the island.

Unknown Data Deficient

Books

Flannery, T Mammals of New Guinea Sydney: Reed Books and

Australian Museum, 1995

Flannery, T Mammals of the South-West Pacific and Moluccan

Islands Sydney: Reed Books and Australian Museum, 1995.

Gordon, G., and A J Hulbert “Peramelidae.” In Vol 1B of

Fauna of Australia: Mammalia, edited by D W Walton and

B J Richardson Canberra: Australian Government

Publishing Service, 1989

Jones, F W The Mammals of South Australia Part 2 The

Bandicoots and the Herbivorous Marsupials Adelaide:

Government Printer, 1924

Mahoney, J A., and W D L Ride “Peramelidae.” In

Zoological Catalogue of Australia 5, Mammalia Canberra:

Australian Government Publishing Service, 1988

Menzies, J A Handbook of New Guinea Marsupials and Monotremes.

Madang, Papua, New Guinea: Kristen Press, Inc., 1991

Seebeck, J H., P R Brown, R L Wallis, and C M Kemper,

eds Bandicoots and Bilbies Chipping Norton, Australia:

Surrey Beatty & Sons, 1990

Strahan, R., ed The Mammals of Australia Sydney: Reed Books

and Australian Museum, 1995

Stodart, E “Breeding and Behaviour of Australian Bandicoots.”

In The Biology of Marsupials, edited by B Stonehouse and D.

Gilmore London: Macmillan, 1977

Periodicals

Freedman, L “Skull and Tooth Variation in the Genus

Perameles Part 1 Anatomical Features.” Records of the Australian Museum 27 (1967): 147.

Gordon, G., and B C Lawrie “The Rufescent Bandicoot,

Echymipera rufescens (Peters and Doria), on Cape York

Peninsula.” Australian Wildlife Research 5 (1977): 41.

Heinsohn, G E “Ecology and Reproduction of the Tasmanian

Bandicoots (Perameles gunni and Isoodon obesulus).” University

of California Publications in Zoology 80 (1966): 1.

Seebeck, John H “Perameles gunnii.” Mammalian Species

Account No 654

John H Seebeck, BSc, MSc, FAMS

Evolution and systematics

The only burrowing members of the Peramelemorphia,

bilbies probably evolved separately during the Pleistocene

pe-riod from other bandicoots

Taxonomists disputed throughout the twentieth century

whether the two species in the Macrotis genus, the greater bilby

Macrotis lagotis and the lesser bilby Macrotis leucura, constitute a

subfamily Thylacominae within the family Peramelidae, or

whether they should receive full family status as

Thylacomyi-dae Both species show distinctive morphological features

in-cluding a flattened cranium; broad braincase and narrow snout;

forward-pointing rostrum; pear-shaped bullae and unique

adap-tations of the molar teeth However, other characteristics, such

as reproductive biology, are so similar to other species in the

order that doubts continue to be expressed about separation

The lesser bilby has been declared Extinct by the IUCN:

the greater bilby is now commonly referred to as the bilby

The taxonomy for the greater bilby is Macrotis lagotis (Reid,

1837), Swan River, Western Australia, Australia Other

com-mon names include: English: Greater rabbit-eared bandicoot;French: Grand bandicoot-lapin; Spanish: Cangurito narigudogrande

Physical characteristics

About the size of a rabbit, with huge ears that earn it thealternative name rabbit-eared bandicoot, the bilby has a verylong, thin, pointed snout and an extremely long black tail with

a white, crested tip Its fur, bluish gray above and cream towhite underneath, is soft and silky

The forelimbs are strong, with three clawed and two clawed toes used for burrowing In common with many othermarsupials, the hind feet lack a first toe

un-Distribution

Last recorded alive in 1931, the lesser bilby lived in thesandhill deserts of central Australia The greater bilby occu-pied a wide variety of habitats and may have lived over about

Rabbit-sized with extremely large ears, long, thin

snout, silky bluish gray fur, powerful front feet

with large claws.

Size

Head and body 9–10.2 in (23–26 cm); tail

7.8–11.4 in (20–29 cm) Weight 28–88 oz

(800–2,500 g).

Number of genera, species

1 genus; 2 species (one extinct)

70% of the Australian landmass In the 1890s, one naturalist

noted that “it was not unusual for rabbiters, even in the

im-mediate neighborhood of Adelaide (South Australia), to take

more bilbies than rabbits in their traps.” Today, bilbies are

only found in one fifth of their former range and are

com-pletely absent from the 386,000 mi2(1 million km2) of South

Australia where they were once so common

The species is still comparatively widespread, with

frag-mented populations in the Tanami Desert of the Northern

Territory; the Gibson and Great Sandy Deserts and Pilbara

and Kimberley regions of Western Australia; and isolated

ar-eas in southwest Queensland

Habitat

Until the arrival of European settlers, bilbies were found

in a broad range of habitats Only a small number of habitatswere avoided Rocky terrain was not used because of its un-suitability for burrowing Places with thick ground cover wereavoided too, as these marsupials need great mobility for for-aging Europeans introduced much more significant limita-tions Today, bilbies are absent from areas with intensivelivestock farming, as well as habitat where foxes and rabbitsare present in any significant numbers

Habitats currently occupied by bilbies fall into two types

In the south of its range, this marsupial lives on rises and

ridges among sparse grasses, especially mitchell grass Astrebla

and short shrubs Further north, habitats are more variable.They include acacia woodland, acacia scrub with a spinifex

Triodia understory, hummock grassland, shrub steppe, and

creek beds A critical factor in the north is the frequency ofbush fires Where fires occur at least once every 10 years, theamount of ground cover is reduced Such fires also trigger the

germination of plants such as Yakirra australiense, whose seeds

can be an important part of the animal’s diet

scent-The lesser bilby (Macrotis leucura), also known as the rabbit

bandi-coot, is extinct (Photo by Bruce Coleman, Inc Reproduced by

per-mission.)

The greater bilby (Macrotis lagotis) has very characteristic long ears and nose (Photo by Martin Garvey; Gallo Images/Cobris Reproduced

by permission.)

ranges, with the male ranges considerably larger These home

ranges are often temporary in nature, however, since bilbies

make regular seasonal movements in response to changing

food availability

The pock-marked arid landscapes of central Australia are

testimony to bilby burrowing activity Each individual digs a

number of burrows within its home range to shelter in

dur-ing the day There can be as many as 12 spiraldur-ing burrows,

each up to 10 ft (3 m) long The entrance is usually at the

foot of a shrub or grass hummock, or against the base of a

termite mound

This animal can run surprisingly fast, although in an

un-gainly fashion, with the tail held up off the ground, the hind

feet moving together and the front feet alternately It rarelystrays more than 330 ft (100 m) from a burrow A bilby mayvisit several burrows during the night, before selecting one inwhich to spend the next day

Feeding ecology and diet

Emerging from its burrow about an hour after sunset, thebilby is wholly nocturnal, returning well before dawn Itsearches for food by using its powerful front feet with longclaws to dig numerous small conical holes in the ground up

to 4 in (10 cm) deep The long thin tongue is used to lick upmuch of the food—between 29 and 90% of its feces consists

of earth The senses of smell and hearing are both crucial infood detection

This marsupial is omnivorous, with a diet that includesseeds, roots, insects, bulbs, fruit, and fungi Research showsthat individual colonies tend to favor one or two food itemsover all others, probably in response to their abundance within

The tail of the greater bilby (Macrotis lagotis) is half black and half

white (Photo by Howard Hughes/Nature Focus, Australian Museum.

Reproduced by permission.)

In parts of Australia, introduced rabbits have caused a decline in the numbers of greater bilbies (Macrotis lagotis) due to competition for burrows (Photo by Chris Oaten/Nature Focus, Australian Museum Re- produced by permission.)

Greater bilby (Macrotis lagotis) (Illustration by Bruce Worden)

a particular habitat Thus in the Tanami Desert, bilbies

con-sume termites and lepidoptera larvae; in Queensland, seeds,

bulbs, and acacia root-feeding grubs predominate at different

locations Bilbies do not appear to drink water; instead, they

gain the moisture they need from their food

Reproductive biology

The polyestrous females are physiologically capable of

pro-ducing litters at any time of the year, although in some areas

rainfall and food availability are limiting factors Bilbies are

polygynous After mating with a socially dominant male, the

female undergoes a gestation of just 14 days, then gives birth

to one to three young

No more than a centimeter in length, the newborn young

crawl into the backward-facing pouch, where they will remain

suckling on a choice of eight teats for the next 80 days Even

after leaving the pouch, the young will stay in the burrow for

a further fortnight The mother continues to suckle them,

while at the same time making nocturnal sorties into the open

for food Although the young then leave the burrow and

be-gin feeding on solid food, they often continue to share their

mother’s burrows for a short while after gaining

indepen-dence The young females attain sexual maturity at five

months Male maturity is unknown The longevity record for

a captive greater bilby Macrotis lagotis is seven years and two

months

Conservation status

The lesser bilby has been declared Extinct Listed as

Vul-nerable under both IUCN criteria and Australian legislation,

the greater bilby now exists in small, fragmented populations

over about a fifth of its former range Competition for food

and nesting burrows with introduced rabbits and predation

by introduced foxes are significant factors in the species’

de-cline Feral cats have also depleted numbers Intensive cattle

and sheep farming have limited available habitat through

changes in vegetation cover and damage to the soil structure

A lack of managed burning to reduce ground cover is also

im-plicated in localized extinctions

Despite such historical losses, a national recovery planpromises a better future for the bilby Its key targets includemanaging remaining habitat and monitoring populations, aswell as captive breeding and re-establishing bilbies in areaswhere they occurred previously At the beginning of thetwenty-first century, breeding and release schemes on preda-tor-free islands and special enclosures within protected areaswere showing signs of success

Significance to humans

Formerly important as food and hunted for its fur by riginal tribes, this marsupial has gained an iconic status to-day as a symbol of Australia’s threatened indigenous wildlife.Adopted as a mascot by the Commonwealth of Australia En-dangered Species Program, the species has gained wider pub-lic awareness thanks to a campaign that began in the 1980s

abo-to replace the Easter bunny with an Easter bilby EveryEaster, thousands of chocolate bilbies are sold, often with apercentage of the profits channeled back into bilby conser-vation

The greater bilby (Macrotis lagotis) digs insects and larvae out of the soil for food (Photo by Randall Hyman Reproduced by permission.)

Books

Hoser, R Endangered Animals of Australia Sydney: Pearson,

1991

Macdonald, D The New Encyclopaedia of Mammals Oxford:

Oxford University Press, 2001

Nowak, R M Walker’s Mammals of the World Online.

Baltimore: John Hopkins University Press, 1995 <http://

press.jhu.edu/books/walkers_mammals_of_the _world/

marsupialia.peramelidae>

Seebeck, J H., P R Brown, R L Wallis, and C M Kemper,

eds Bandicoots and Bilbies Chipping Norton, Australia:

Surrey Beatty & Sons, 1990

Strahan, R The Mammals of Australia Sydney: Australian

Range-1910 E-mail: environmentshop@saugov.sa.gov.au Web site:

<http://www.environment.sa.gov.au>

Environment Australia GPO Box 787, Canberra, AustralianCapital Territory 2601 Australia Phone: (2) 6274 1111.Web site: <http://www.ea.gov.au/>

Derek William Niemann, BA

Evolution and systematics

In terms of appearance and habits, the marsupial moles are

about as different from most other marsupials as it is

possi-ble to be In fact, they bear an uncanny resemblance to African

golden moles (Eremitalpa spp.) These similarities are due

en-tirely to the convergent evolution of adaptations to a similar

“sand-swimming” lifestyle The marsupial moles have no

close relatives There is no doubt these extraordinary animals

are marsupials, but even DNA analysis has been so far unable

to connect them to any other living marsupial group, and it

is believed they belong to a lineage that diverged from other

marsupials more than 50 million years ago The evolutionary

history of the marsupial moles was made a little clearer by the

discovery in 1987 of a fossil form in Tertiary rocks of the

world-famous Riversleigh system in Queensland It is now

thought the ancestor of Notoryctes may have been a similar

kind of animal, which developed its burrowing habit in order

to feed in the soft litter of decomposing leaves in an ancient

tropical rainforest What started as an adaptation for

rum-maging through the humus layer may have evolved into the

sand-swimming technique employed by marsupial moles inlater, drier habitats

Marsupial moles spend most of their time beneath the sand

in one of the world’s least explored regions—the deserts ofcentral and western Australia As a result, they are difficult tostudy in the wild They have also proved impossible to keepfor long in captivity and, consequently, many aspects of theirbiology remain a mystery

Physical characteristics

There is no mistaking a marsupial mole for any other tralian mammal Both species have a body shaped like a flat-tened cylinder, with very short legs and a short, stiff tail Thebody is covered in very fine, almost iridescent golden fur,which is often stained by the red desert soil There are no vis-ible eyes, just dark spots marking the place where vestigiallenses lie under the skin The ears are mere holes in the side

Aus-of the head, protected by dense fur The only distinctive

fea-●▲

Notoryctemorphia Marsupial moles

Long, flexible body like a flattened cylinder a

with short tail and very short stout legs; front

feet bear two large spade-like claws; fur is silky

and pale blond, nose has flat, callused shield

and there are no visible eyes or ears; females

have two teats within a backward opening pouch