Animal Behavior - BSC 2011 (Dr. Song) - 1 Animal Behavior...

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Animal Behavior (Chapter 51) Behavior Sum of responses to external and internal stimuli Muscular and non-muscular activities Everything an animal does and how it does it Behavioral Ecology - study of ecological and evolutionary basis for animal behavior Four Questions of Behavior 1. What stimulus elicits the behavior, and what physiological mechanisms mediate the response? 2. How does the animals experience during growth and development influence the response? 3. How does the behavior aid survival and reproduction? 4. What is the behavior’s evolutionary history? First two questions deal with proximate causation (“how” question) and the other two questions deal with ultimate causation (“why” question) P1. What stimulus elicits the behavior, and what physiological mechanisms mediate the response? Fixed action patterns: a type of behavior directly linked to a simple stimulus o Unlearned, innate, unchangeable o Movement: kinesis, taxis, migration o Behavioral rhythms: circadian, circannual o Signals and Communication: Courtship, pheromone Kinesis: a change in activity of turning rate in response to a stimulus Taxis: an oriented movement toward (positive) or away from (negative) some stimulus
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Animal Behavior - BSC 2011 (Dr. Song) - 1 Animal Behavior...

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