Bio 94 - Behavioral Ecology - Burley
Bio 94 - Behavioral Ecology - Burley 05220
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This 1 page Class Notes was uploaded by Karina Martin on Saturday March 5, 2016. The Class Notes belongs to 05220 at a university taught by Nancy Burley in Winter 2016. Since its upload, it has received 22 views.
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Date Created: 03/05/16
Bio 94 Behavioral Ecology Burley 1) Behavior a. study of how and why organisms respond to stimuli in their environment b. some topics studied i. Some topics studied: ii. Finding food, place to live iii. Cooperation & kin selection iv. communication v. sexual selection 2) Proximate causation a. How questions i. How does a homing pigeon find its way home? ii. How does a male lion recognize his offspring? What cues does he use? 3) Ultimate causation a. Why questions i. Why does a homing pigeon return to the same place? ii. Why do male lions kill cubs that are not their offspring? 4) Signals a. traits fashioned maintained by NS because they convey information to other organisms 5) Sexual selection a. differential RS resulting from access to mates. i. Two components 1. Intersexual 2. Intrasexual 6) Parental Investment (PI) a. any investment in an individual offspring that increases chances that offspring will survive/reproduce, while decreasing parent’s ability to invest in additional offspring b. Higher PI i. Low potential reproductive rate ii. Exercise choice of mates iii. Improve fitness by quality of mates c. Lower PI i. Higher potential reproductive rate ii. Compete for mates iii. Improve fitness by quantity of mates d. EXCEPTIONS i. Species with male PI similar to female PI ii. Species with greater male PI iii. Species with male control of resources
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