What is Ecology

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Slide 1

What is Ecology?

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Slide 2

Origin of the word…”ecology”

Greek origin

OIKOS = household

LOGOS = study of…

Study of the “house/environment” in which we live.

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Slide 3

Ecology is study of interactions between

non-living components in the environment…

light

water

wind

nutrients in soil

heat

solar radiation

atmosphere, etc.

AND…

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Slide 4

Living organisms

Plants

Animals

microorganisms in soil, etc.

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Slide 5

To study Ecology involves

For non-living (abiotic)

Climatology

Hydrology

Oceanography

Physics

Chemistry

Geology

soil analysis, etc.

For living (biotic)

animal behavior

Taxonomy

Physiology

mathematics (population studies)

etc.

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Slide 6

Ecology

views each locale as an integrated whole of interdependent parts that function as a unit.

tundra

caribou

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Slide 7

The interdependent parts are…

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Slide 8

Nonliving

dead organic matter

nutrients in the soil and water.

Producers

green plants

Tundra

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Slide 9

Consumers

herbivores and carnivores

Decomposers

fungi and bacteria

Tundra

Caribou

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Slide 10

ECOLOGY: Levels of Organization

- a hierarchy of organization

in the environment

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Slide 11

Levels of organization - Terms

Biosphere

Surface of the earth

Composed of many ecosystems

Ecosystem

Large or small as we decide

Backyard, O’Melveney Park, Hedge along Room 110, etc.

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Slide 12

Levels of organization - Terms

Population – one species live in one place at one time