Chapter 51-2

Chapter 51-2 - Chapter 51 Animal Behavior Animal Behavior...

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Chapter 51: Animal Behavior Animal Behavior is based on physiological systems and processes. Behavior is an action carried out by muscles or glands under the control of the nervous system in response to the stimulus. 1. Songs and scent 2. Nutrition and mating 3. Homeostasis e.g.- honeybees 4. Sum of responses to external and internal stimuli Niko Tinbergen: 1. Proximate Causation [how]: a. What stimulus elicits behavior and what physiological mechanisms mediate the response? b. How does the animal’s experience during growth and development influence the response? 2. Ultimate Causation [why]? a. How does the behavior aid survival and reproduction? b. What’s the behavior’s evolutionary history? Behavioral ecology: The study of ecological and evolutionary basis for animal behavior. Niko Tinbergen, Karl von Frisch, Konrad Lorenz – Nobel Prize – 1973. Fixed Action Patterns: 1. Fixed action patterns: A sequence of unrelated acts that is essentially unchangeable and once initiated usually carried to completion. 2. Sign stimulus: External stimulus. E.g. - male sticklebacks attacking red colored objects. Oriented Movement 1. Kinesis and Taxis:
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a. Kinesis: A change in activity or turning rate in response to a stimulus. E.g. - Sow bugs – variation in humidity. b.
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This note was uploaded on 01/25/2011 for the course BIO 1510 taught by Professor Unknown during the Spring '07 term at Georgia Tech.

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Chapter 51-2 - Chapter 51 Animal Behavior Animal Behavior...

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