2. Models:Primate Behaviorial Ecology

3. Goals for today... Introduce select models that have been used in the past to predict primate behavior.Introduce select models that have been used in the past to predict primate behavior. Talk about historical changes in how we interpret primate behaviorTalk about historical changes in how we interpret primate behavior What is the future of primate studies in the wild?What is the future of primate studies in the wild?

4. Phase 1: Classification Models Crook and Gartlan model (handout in coursepak).Crook and Gartlan model (handout in coursepak). –Lots of exceptions –Roughly correlated with ecological variables –where does this lead research?

5. Phase II: Comparative Approach Compare species and look for patterns (Clutton- Brock and Harvey). –Nocturnal primates smaller than diurnals.

6. Frugivores smaller than folivores. Red colobus Black and white colobus

7. Frugivores have larger home ranges than folivores.

8. Folivores are found in higher population densities than frugivores.

9. Sympatric congener studies Sympatric- species who live in same areaSympatric- species who live in same area Congener-Species in the same genusCongener-Species in the same genus Niche-organism’s “ecological address”Niche-organism’s “ecological address” Ecology important!!!Ecology important!!!

10. Phase III: Deductive approach InductiveInductive Moves from specific to general statement “ Every time I throw a ball up it comes back down again so next time it should do the same thing” DeductiveDeductive Moves from general to specific “ Due to Newton’s law of gravity, everything that comes up must come down, so when I kick a ball up, it should come down again. “

11. Predictive models Wrangham’s model for primate social groups. (handout in course pak, Strier pg 28).

12. Terborgh and Janson model Group size is influenced by tradeoff between: Predation pressure Feeding success Size of resources Handout in coursepack, Strier pg 20.

13. Role of Predation Graphs from Isbel article (coursepak).Graphs from Isbel article (coursepak).

14. Waves in Primatology theory DescriptiveComparativeDeductive New technology DNA Cortisol