Lecture 16 Flashcards
Optimal patch use model
Predicts how long a forager should exploit a food patch diminishing returns
Cumulative gain curve
the cumulative amount of energy acquired increases more slowly as ore time is spent in the path
Socially Foraging
Producers and scroungers
Kleptoparasites
Animals that obtain food from other indiviuals
Producers V.S scroungers
Producers search for food; scroungers usurp food discoveries from producers
Producer-Scrounger-model
predicts the frequency of each foraging strategy in a group
Tome (1988): How long should Ruddy Ducks remain in a single foraging patch?
The birds spent more time in a patch based on travel time, ducks would attempt to maximalize energy intake while feeding from the patches
Sea star feeding example
Sea Stars take several days to consume a clam, conspicuous while eating
Mottley & Giraldeau (2000): What is the equilibrium frequency of producers and scroungers in spice finches
The model predicted