1. Lecture Quiz 6 Jeopardy
The LAST Quiz!

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3. Provide the equations for geometric growth, exponential growth, and logistic growth.

4. Geometric: Nt = Noλt Exponential: dN/dt = rmaxN Logistic: dN/dt = rmaxN(1-N/K)

5. Compare and contrast three adaptations of predators and prey

6. Predators: Acute senses, Forward-facing eyes, Venom Prey: Adapted coloration, Defensive structures, Outward-facing eyes

7. Explain a scenario that describes the confusion effect

8. Many prey together get attacked by a predator
Many prey together get attacked by a predator. All prey run in different sporadic directions, and the predator can’t lock onto one to attack. Increases the chance for prey survival.

9. Contrast interference competition and resource competition, and provide one example of a species experiencing that competition for each

10. Interference – Active behavior to alter competitors’ use of a resource (Damselfish compete for space) Resource – Use of the same resources (Trees sharing light or nurients)

11. Provide the equations used to calculate each of these factors: Net Reproductive Rate Mean Generation Time Per Capita Rate of Increase Population Size Change Over Time

12. Net Repro Rate: Ro =∑lxmx Avg. Gen Time: T = ∑ xlxmx / Ro Per Cap
Net Repro Rate: Ro =∑lxmx Avg. Gen Time: T = ∑ xlxmx / Ro Per Cap. Rate Increase: r = ln Ro / T Pop Size Change: dN/dt = B - M + I - E

13. The concept of a Hypervolume of a niche belongs to who?

14. G.E. Hutchinson

15. Provide all of the beneficial/harmful types of predator prey interactions (+/-/0) and provide a real-life example of one of them

16. 0 0 neutralism - - competition + + mutualism + - predation, parasitism + 0 commensalism - 0 amensalism

17. Define the Competitive Exclusion Principle

18. Strongly competing species cannot persist (one will be eliminated)

19. Provide a definition for each of the following variables pertaining to population growth: Ro x lx Mx T r

20. Ro. =. Net reproductive rate x. =. Age interval in years lx. =. % pop
Ro = Net reproductive rate x = Age interval in years lx = % pop. surviving to each age (x) Mx = Average number eggs produced by each individual in each age category T = Average Generation Time r = Per Capita Rate of Increase

21. List the 3 types of defensive mechanisms used by prey against predators

22. Behavior Chemicals Morphology

23. Provide one example of predator prey interactions discussed in class, and explain whether or not that predator affects the population size of its prey completely

24. Snowhare-Lynx: Predators alone did not control prey population size, but predation coupled with food supply had a large effect

25. Define allelopathy

26. Plants produce chemicals that inhibit competing plant growth

27. Define Elton’s concept of a niche and explain what might happen if two species share the same niche

28. The functional role of an organism in its community
The functional role of an organism in its community. Two species sharing a niche will experience interspecies competition

29. Distinguish cryptic from aposematic coloration

30. Cryptic: Camouflage to blend in with its surrounding Aposematic: Warning coloration to deter predators

31. List the 3 types of mimicry, and explain the scenario in which they would occur

32. Batesian: Palatable mimics unpalatable Mullerian: Unpalatable mimics unpalatable Mertensian: Deadly mimics unpalatable

33. Define Pollination Syndrome

34. A match between pollinator morphology and flower morphology

35. Define the term carrying capacity (K)

36. The number of individuals of a population the environment can support

37. Why are some plants predators?

38. To manually acquire nutrients

39. List the 3 hunting types, and provide on example of an animal that performs that type for each.

40. Pursuit (Hawk) Stalk (Crane) Ambush (Alligator)

41. Define Ectomycorrihzae and Arbuscular mycorrhizae

42. Ectomycorrhizae: form a sheath around plant roots; grow between root cells; some may penetrate into root cells Arbuscular mycorrhizae: penetrate into cortex of the root, form special structures called arbuscules