1. Ecology: Lectures 14-16 Predation November 2, 2005

2. Lotka-Volterra equation: Prey isocline (dV/dt = 0)  Fig. 15.1a

3. Lotka-Volterra equation: Predator isocline (dC/dt = 0)  Fig. 15.1b

4. Lotka-Volterra model: with both predator and prey isoclines  Fig. 15.1 c

5. Lotka-Volterra prediction: Predator-prey flux through time  Fig. 15.1 d

6. Rosenzweig-MacArthur: Stable cycle  Fig. 15.3 a

7. Rosenzweig-MacArthur: Stable/dampened oscillations  Fig. 15.3 b

8. Rosenzweig-MacArthur: Unstable/increasing oscillations  Fig. 15.3 c

9. Rosenzweig-MacArthur: Refuge  Fig. 15.3 d

10. Gause’s predation experiments: Didinium predation on Paramecium  Fig. 15.4

11. Huffaker’s experiments: mite predation and complex environments  Fig. 15.6

12. Functional responses of predator to prey concentrations  Type 1 response: Fig. 15.7 a

13. Functional responses of predator to prey concentrations  Type 2 response: Fig. 15.7 b

14. Functional responses of predator to prey concentrations  Type 3 response: Fig. 15.7 c

15. Prey switching  Fig. 15.10

16. Aggregative response  Fig. 15.12

17. Optimal foraging: bluegill sunfish Fig. 15.16

18. Chemical defense/toxicity/ warning coloration

19. Warning coloration From Campbell et al., Biology

20. Batesian mimicry  Harmless hawkmoth larva resembles the diamond-shaped head of a poisonous snake From Campbell et al., Biology

21. Müllerian mimicry  Both the cuckoo wasp and the yellow jacket deliver toxic stings. From Campbell et al., Biology

22. Cryptic coloration  Poorwill and frog From Campbell et al., Biology

23. Lynx and hare cycling  Fig. 16.19

24. Hare and winter vegetation (“browse”) cycling  Fig. 16.9