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First hour exam

TEST REVIEW. http://life.uiuc.edu/animalbiology/105/. ID: eee105. Password: prAIRie. First hour exam. Friday Feb 8. noon here. 100 points. (of 500 for semester). 29 questions. 57 bubbles. Wed. Feb 6. 5-7pm 100 Gregory.

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First hour exam

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  1. TEST REVIEW http://life.uiuc.edu/animalbiology/105/ ID: eee105 Password: prAIRie First hour exam Friday Feb 8 noon here 100 points (of 500 for semester) 29 questions 57 bubbles Wed. Feb 6 5-7pm 100 Gregory Conflict Exam If University-approved conflict Sign up with Karin Nelson by Wednesday’s lecture

  2. EEE 105 2 Question Formats: Multiple choice Multiple True-False

  3. Multiple choice EEE 105 • (MC) Plants and animals are absolutely identical in the way they ____________ . • A. obtain energy • B. respire • C. apportion energy between • their necessary life activities • D. reproduce • E. obtain nutrients

  4. Multiple True-False EEE 105 F T T T F

  5. http://life.uiuc.edu/animalbiology/105/ ID: eee105 Password: prAIRie EEE 105 Population Ecology Chapter 6

  6. density-dependent limiting factors

  7. density-dependent limiting factors

  8. Predation regulates prey populations Predation regulates prey populations predation is “good” for the prey removes old , diseased , young density-dependent

  9. Predation regulates prey populations Predation regulates prey populations predation is “good” for the prey removes old , diseased , young density-dependent predator/prey interaction

  10. density-dependent limiting factors

  11. Disease regulates populations disease is “good” for the prey removes old , diseased , young density-dependent predator/prey interaction epidemic waves

  12. Energy producer primary secondary consumer consumer E parasites parasites parasites Food chain Photosynthetic food chain Trophic levels respiration decomposition autotroph herbivore predator each trophic level regulates population of its prey parasites (diseases) regulate population of hosts

  13. K N t Population density also changes behavior Rats in 1/4 acre pens all the food & water they need 5,000 150 social behavior destroyed

  14. can also regulate diversity of their community Predators e.g. marine rocky coast intertidal zone

  15. Predators can also regulate diversity A tide pool

  16. dozens of species a diverse community

  17. Starfish prey on mollusks when starfish removed dozens of species a diverse community

  18. Starfish prey on mollusks when starfish removed mussels overgrow everything many species wiped out Starfish are keystone predators They promote species diversity

  19. dN/dt = N rmax K dN/dt = N rmax (K - N/K) biotic potential N logistics curve t rmax = intrinsic rate of increase K = the carrying capacity

  20. K N t r-strategy rapid reproduction “boom and bust” pests are r-strategists

  21. K K-strategy large size, deliberate reproduction N t

  22. r-strategist K-strategist population growth offspring survival parental care r- and K-strategies contrasted slow fast body size small large offspring # few many low high low high

  23. r strategy K strategy

  24. Energy producer primary secondary consumer consumer E parasites parasites parasites Food chain Photosynthetic food chain Trophic levels respiration decomposition autotroph herbivore predator

  25. Energy producer primary secondary consumer consumer E parasites parasites parasites Food chain Photosynthetic food chain Trophic levels respiration decomposition autotroph herbivore predator parasites are r-strategists

  26. Secondary succession r strategy K strategy

  27. End of Materialfor First Hour Exam

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