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Community Ecology. Community interactions: Community Ecology.

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Presentation on theme: "Community Ecology. Community interactions: Community Ecology."— Presentation transcript:

1 Community Ecology

2 Community interactions: Community Ecology

3 Community interactions: –Competition –Predation –Herbivory –Parasitism –Disease –Mutualism –Commensalism –Coevolution Community Ecology

4 Community interactions: –Competition –Predation –Herbivory –Parasitism –Disease –Mutualism –Commensalism –Coevolution Community Ecology -/- +/- +/+ +/0

5 Predation and coloration: Community Ecology

6 Predation and coloration: Aposematic coloration Community Ecology

7 Predation and coloration: Aposematic coloration Community Ecology

8 Predation and coloration: Batesian mimicry Community Ecology

9 Predation and coloration: Batesian mimicry monarch viceroy Community Ecology

10 Predation and coloration: Batesian mimicry poison harmless monarch viceroy Community Ecology

11 Predation and coloration: Müllerian mimicry Community Ecology

12 Predation and coloration: Müllerian mimicry Iraqi American Community Ecology

13 Predation and coloration: Müllerian mimicry I’m a soldier. Don’t mess with me. Community Ecology

14 Community structure: Species diversity Community Ecology

15 Community structure: Species diversity How many species are in a community? Community Ecology

16 Community structure: Trophic structure Who eats whom? Community Ecology

17 Community structure: Community Ecology Primary producers

18 Community structure: Community Ecology Primary producers Primary consumers

19 Community structure: Community Ecology Primary producers Secondary consumers Primary consumers

20 Community structure: Tertiary consumers Community Ecology Primary producers Secondary consumers Primary consumers

21 Community structure: Quaternary consumers Tertiary consumers Community Ecology Primary producers Secondary consumers Primary consumers

22 Community structure: Energetic hypothesis: Length of a food chain is limited by inefficiency of energy transfer Community Ecology

23 Community structure: Energetic hypothesis: Length of a food chain is limited by inefficiency of energy transfer Dynamic stability hypothesis: Long food chains are less stable than short food chains. Community Ecology

24 Community structure: Energetic hypothesis: Length of a food chain is limited by inefficiency of energy transfer Dynamic stability hypothesis: Long food chains are less stable than short food chains. Community Ecology

25 Community structure: Species with a large impact Community Ecology

26 Community structure: Species with a large impact Dominant Keystone Foundation Community Ecology

27 Community structure: Species with a large impact Dominant – most abundant Keystone – disproportionate impact Foundation – ecosystem engineers Community Ecology

28 Community structure: Bottom-up vs. top-down controls Community Ecology

29 Community structure: Bottom-up vs. top-down controls Predators depend on prey vs. Predators control prey Community Ecology

30 Community structure: Disturbance Community Ecology

31 Community structure: Disturbance May be the norm Community Ecology

32 Community structure: Disturbance Moderate disturbance may foster increased diversity Community Ecology

33 Community structure: Disturbance Human disturbance can be too high or sometimes too low. Community Ecology

34 Ecological Succession: Community Ecology

35 Ecological Succession: Primary – starting with bare rock Secondary – starting with soil Community Ecology

36 Ecological Succession: autotrophic prokaryotes Community Ecology

37 Ecological Succession: autotrophic prokaryotes lichens and mosses Community Ecology

38 Ecological Succession: autotrophic prokaryotes lichens and mosses annuals Community Ecology

39 Ecological Succession: autotrophic prokaryotes lichens and mosses annuals perennials Community Ecology

40 Ecological Succession: autotrophic prokaryotes lichens and mosses annuals perennials trees Community Ecology

41

42 Ecological Succession: Pioneer species Climax species Community Ecology

43 Ecological Succession: Pioneer species Facilitate later species Climax species Inhibit later species Community Ecology

44 Species Richness (Biodiversity): Community Ecology

45 Species Richness (Biodiversity): Community Ecology evapotranspiration sunlight + temp + water richness

46 Species Richness (Biodiversity): Community Ecology evapotranspiration sunlight + temp + water richness

47 Species Richness (Biodiversity): Community Ecology evapotranspiration sunlight + temp + water richness

48 Species Richness (Biodiversity): Community Ecology richnessimmigration extinction

49 Species Richness (Biodiversity): Community Ecology richnessimmigration extinction

50 Species Richness (Biodiversity): Community Ecology richnessimmigration extinction equilibrium number

51 Species Richness (Biodiversity): Community Ecology richness small island immigration extinction

52 Species Richness (Biodiversity): Community Ecology richness large island immigration extinction

53 Species Richness (Biodiversity): Community Ecology richness far from the mainland immigration extinction

54 Species Richness (Biodiversity): Community Ecology richness close to the mainland immigration extinction

55 Continuing Debate: Community Ecology

56 Continuing Debate: integrated vs. individualistic Community Ecology

57 Continuing Debate: integrated vs. individualistic rivet vs. redundancy Community Ecology

58 Continuing Debate: integrated vs. individualistic rivet vs. redundancy Community Ecology

59 Continuing Debate: integrated vs. individualistic rivet vs. redundancy Community Ecology.


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