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Animal Behavior Foraging
Foraging
15
Biology
Undergraduate 4
05/03/2010

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Term
Foraging
Definition
finding, processing, and eating food
Term
Four Decisions For Foraging
Definition
Energetic value
How easy it is to carry
Its distance from cover
And how these variables interact
Term
Model
Definition
a mathematical expression that weighs the costs and benefits of each strategy
Term
Currency
Definition
measures the costs and benefits of some indicator of fitness
Term
Constraints
Definition
(limitations) on foraging behavior can be identified
Term
Decision Variable
Definition
a set of decisions or strategies available to animal Remember that models do not imply consciousness a la humans
Term
Handling Time
Definition
the amount of time it takes to process food
Term
Search Time
Definition
Time it takes to find a prey item
Term
Equation for Profitability
Definition
Energy/Handling Time
Term
Equation for when you eat the current prey item
Definition
Current Energy/Handling Time > Other Energy/(Search time + handling time)
Term
Zero-one rule
Definition
animal should make all or none shift between generalist and specialist
Term
Risk
Definition
refers to variability in food abundance
Term
Risk Prone
Definition
some animals are gamblers and choose the variable site
Term
Risk Averse
Definition
animals choose reliable sites where they are more or less guaranteed of finding at least a mediocre amount of food
Term
Agriculture
Definition
Provides means of providing constant food source despite changing environment
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