Bild 2_Ch 51

Bild 2_Ch 51 - Ch. 51: Behavioral Ecology 3/15/2008 9:58:00...

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Ch. 51: Behavioral Ecology 15/03/2008 23:58:00 1. Define behavior. Behavior: everything an animal does and how it does it, including muscular  activities such as chasing prey, certain nonmuscular processes such as  secreting a hormone that attracts a mate, and learning 2. Distinguish between proximate and ultimate questions about behavior. Ask a  proximate question and an ultimate question about a male stickleback fish attacking  other male sticklebacks that invade its nesting territory. Proximate questions: in animal behavior, an inquiry that focuses on the  environmental stimuli, if any, that trigger a particular behavioral act, as well as  the genetic, physiological and anatomical mechanisms underling it; “how”  questions Ultimate questions: in animal behavior, an inquiry that focuses on the  evolutionary significance of a behavioral act; “why” questions Male stickleback fish o Proximate cause: the red belly of the intruding male acts as a sign  stimulus that releases aggression in a male stickleback o Ultimate cause: by chasing away other male stickleback, a male  decreases the chance that eggs laid in his nesting territory will be  fertilized by another fish 3. Define fixed action patterns and give an example.
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This note was uploaded on 04/15/2008 for the course BILD 2 taught by Professor Schroeder during the Winter '08 term at UCSD.

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Bild 2_Ch 51 - Ch. 51: Behavioral Ecology 3/15/2008 9:58:00...

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