1. First hour exam http://life.uiuc.edu/animalbiology/105/ ID: eee105 Password: prAIRie Friday Feb 8 noon here 100 points(of 500 for semester) 29 questions57 bubbles TEST REVIEW If University-approved conflict Sign up with Karin Nelson by Wednesday’s lecture Wed. Feb 6 Conflict Exam 5-7pm 100 Gregory

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

3. EEE 105 7.(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 Multiple choice

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

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

6. limiting factors density-dependent

7. limiting factors density-dependent

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

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

10. limiting factors density-dependent

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

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

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

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

16. Predators can also regulate diversity A tide pool

17. dozens of species a diverse community

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

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

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

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

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

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

24. r strategy K strategy

25. Energy Food chain E producer primary secondary consumer Trophic levels autotrophherbivorepredator respiration decomposition Photosynthetic food chain parasites

26. Energy Food chain E producer primary secondary consumer Trophic levels autotrophherbivorepredator respiration decomposition Photosynthetic food chain parasites parasites are r-strategists

27. Secondary succession r strategy K strategy

28. End of Material for First Hour Exam