MAJOR AREA OF ECOLOGY

 ORGANISMAL ECOLOGYMAJOR AREAS OF ECOLOGY...  Focuses on the adaptations that enable individual organisms to meet the challenges posed by their environments  The geographic distribut

MAJOR AREAS OF ECOLOGY

 ORGANISMAL ECOLOGY

MAJOR AREAS OF ECOLOGY

ORGANISMAL ECOLOGY

 Organisms have developed

functional, structural, and

behavioral adaptations to their

environments

 Focuses on the adaptations

that enable individual

organisms to meet the

challenges posed by their

environments

 The geographic distribution of

organisms is often limited by

the abiotic conditions they can

tolerate

Organismal ecology

Why earthworms live in moist soil?

POPULATION ECOLOGY

 Population ecology is the

branch of ecology that

studies the structure and

dynamics of populations

 Population ecology

concentrates mainly on

factors that affect how

many individuals of

particular species live in

an area.

 All of a population must

use the same resources

– causes competition

Population ecology

What environmental factors affect the reproductive rate of deer mice?

COMMUNITY ECOLOGY

 A community ecology

deals with the whole

array of interacting

species in community

 Focuses on how

interactions between

species affect

community structure

and organization.

Ex: predation,

competition,

symbiosis, mutualism

Community ecology.

What factors influence the diversity of

ECOSYSTERM ECOLOGY

 Ecosystem – includes all

the abiotic factors in

addition to the community

of species in a certain

area.

 Ecosystem ecology focus

on energy flow and the

cycling of chemicals

among the various biotic

and abiotic components.

Ecosystem ecology What factors control photosynthetic

productivity in a temperate grassland ecosystem?

ECOSYSTEM ECOLOGY

LAKES WETLANDS STREAMS AND RIVERS INTERTIDAL ZONES OCEANIC PELAGIC BIOME

TROPICAL FOREST SAVANNA DESERT

TEMPERATE GRASSLAND

There are two types of ecology: – Terrestrial ecology- land – Aquatic ecology- fresh or saltwater

 A landscape or seascape

consists of several different

ecosystems linked by

exchanges of energy,

materials, and organisms

 Focus on the way in which

interactions among

populations, communities,

and ecosystems

LANDSCAPE ECOLOGY.

(e) Landscape ecology To what extent do the trees lining the

drainage channels in this landscape serve as corridors of dispersal for forest animals?

The biosphere is the global ecosystem –

the sum of all the planet’s ecosystem The

most extensive level in ecology, goes from

high in the atmosphere to the bottom of

the oceans

BIOSPHERE

REFERENCE www.wikipedia.org

www.campbl50.com

www.fcelter.fiu.edu

www.whatis.com

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