INTRO TO ECOLOGY - PowerPoint PPT Presentation

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INTRO TO ECOLOGY

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INTRO TO ECOLOGY pp. 359-365 Ecology Defined Ecology means – PowerPoint PPT presentation

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Title: INTRO TO ECOLOGY


1
INTRO TO ECOLOGY
  • pp. 359-365

2
(No Transcript)
3
Ecology Defined
  • Ecology means "study of homes"
  • study the relationships of animals, plants, and
    their environment (interdependence)
  • A small change can affect the whole ecosystem

4
Levels of Organization
5
  • Biosphere
  • Earth and its atmosphere that supports life
  • Ecosystem/Biome (kelp forest)
  • The community and its physical aspects (pH, temp)
  • Community (urchins, kelp, otters, sunflower star,
    etc)
  • all organisms
  • Population (all the sea urchins)
  • members of one species in one place
  • Organism (one sea urchin)

6
Ecology of Organisms
  • Response to biotic (living) and abiotic
    (nonliving) factors

7
  • conformers vs regulators
  • acclimation adjust tolerance

8
  • dormancy vs migration

9
Niche/Habitat
  • Limited resources can result in competition

10
  • Niche - the job of an organism (usually based on
    what they eat)
  • 1. Generalist broad niche
  • 2. Specialist narrow niche and more at risk from
    habitat destruction than generalists

11
  • Habitat
  • 1. The geographic location
  • Organisms having the same niche or overlapping
    habitats can result in competition
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