Lecture 16

Question 1

Optimal patch use model

Answer 1

Predicts how long a forager should exploit a food patch diminishing returns

Question 2

Cumulative gain curve

Answer 2

the cumulative amount of energy acquired increases more slowly as ore time is spent in the path

Question 3

Socially Foraging

Answer 3

Producers and scroungers

Question 4

Kleptoparasites

Answer 4

Animals that obtain food from other indiviuals

Question 5

Producers V.S scroungers

Answer 5

Producers search for food; scroungers usurp food discoveries from producers

Question 6

Producer-Scrounger-model

Answer 6

predicts the frequency of each foraging strategy in a group

Question 7

Tome (1988): How long should Ruddy Ducks remain in a single foraging patch?

Answer 7

The birds spent more time in a patch based on travel time, ducks would attempt to maximalize energy intake while feeding from the patches

Question 8

Sea star feeding example

Answer 8

Sea Stars take several days to consume a clam, conspicuous while eating

Question 9

Mottley & Giraldeau (2000): What is the equilibrium frequency of producers and scroungers in spice finches

Answer 9

The model predicted