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Biodiversity. Trophic Levels 10% Rule Net Product Productivity.

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Presentation on theme: "Biodiversity. Trophic Levels 10% Rule Net Product Productivity."— Presentation transcript:

1 Biodiversity

2 Trophic Levels

3 10% Rule

4 Net Product Productivity

5 Biodiversity

6 California Gnatcatcher

7 Robert MacArthur & E.O. Wilson Island Biogeography

8 Island Biogeography Galapagos Islands

9

10

11 Speciation  Darwin’s Finches

12 Geographic Isolation

13 Continental Drift

14 Mass Extinctions

15 Paul and Anne Ehrlich

16 Interspecific Interactions InteractionInd. # 1Ind. # 2 Competition-- Predation+- Mutualism++ Commensalism+0

17 Competition  Interspecific  Intraspecific

18 Competitive Exclusion Rule  Two species cannot occupy the same ecological niche

19 Resource Partitioning

20 Character Displacement

21 Predation

22 Plant Defenses  Physical  Thorns  Spines  Chemical  Poisons  Nicotine  Strychnine  Morphine  Tannins

23 Animal Defenses  Physical  Shells  Horns/Antlers/Quil ls  Teeth  Chemical  Poisons  Odors

24 Animal Defenses  Cryptic Coloration  Aposematic Coloration

25 Animal Defenses  Batesian Mimicry  Mullerian Mimicry

26 Mutualism

27 Commensalism

28 Keystone Species

29

30

31 Principles  P 56 # 10  P58 # 10 G  P84 # 17  P 94 # 1


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