2. Origin of the word…”ecology”
Greek origin
OIKOS = household
LOGOS = study of…
Study of the “house/environment” in which
we live.
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…
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.
12. Levels of organization - Terms
Population – one species live in one place at one time
Community – All populations (diff. species) that live
in a particular area.
13. Levels of organization - Terms
Habitat – physical location of community
Organism – simplest level of organization
14. Very complex
Can contain 100’s to 1000’s of interacting
species.
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