Chapter 51 BIO - Chapter 51 Behavioral Ecology Proximate...

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Proximate questions: questions that asks about why a behavior is exhibited based on environmental stimuli, as well as physiological and anatomical mechanisms that underly the behabior. v.s Ultimate questions: talk about evolutionary significance. 4 questions to answer about behavior 1) what is the mechanistic basis of the behavior, including chemical anatomical and physiological means 2) How does the maturation process effect the individual (proximate questions) 3) What is the evolutionary history of the behavior 4) How does the behavior contribute to survival (ultimate questions) -FAP(fixed action pattern, behavioral acts that are carried out until completion, triggered by a sign stimulus. - imprinting – includes both learning and innate components, irreversible. (special because it has a sensitive period, - limited phase where certain behaviors can be learned) Behavior traits result of interactions of BOTH a) genetic and b) environmental factors. Innate behavior – strong genetic influence, developmentally fixed. Genes that control animal movements are Directed Movements: a) Kinesis, simple change in activity or turning rate due to a stimulus (sow bug becoming more active in dry area—increases chances of finding a wet area) b) Taxis – This is more automatic that Kinesis, oriented movement toward or away from stimulus. (Fish face the current, positive taxis) c) Migration: genetically programmed/ migratory restlessness. Animal Communication:
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This note was uploaded on 04/22/2008 for the course BSC 2045 taught by Professor H during the Spring '08 term at University of Florida.

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Chapter 51 BIO - Chapter 51 Behavioral Ecology Proximate...

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