lecture04 - evolutionary change II. Behavioral variation...

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BioNB 2210: Lecture 04 Aug. 31, 2011 Lecture 04: Causes of Behavioral Variation Professor Kerry Shaw Required reading for today Shaw, K. L. and Wiley, C. (2010). The genetic basis of behavior. In Evolutionary Behavioral Ecology, Westneat, D.F. and Fox, C.W. (eds.). Oxford University Press, Oxford. pp. 77-89. [note: you may skip over the boxes within the text] Learning Objectives 1. To understand the nature of behavioral variation 2. To understand the importance of different causes of behavioral variation to evolutionary potential I. Evolution can ʼ t occur without phenotypic variation A. Conditions for behavioral evolution B. What makes a phenotype? C. Only genetically based variation can contribute to
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Unformatted text preview: evolutionary change II. Behavioral variation caused by single genes A. Behavioral alternatives are discrete variants B. Evolution of particular gene loci or of phenotypic traits determined by single genes can be followed by tracking changes in the frequencies of alleles and genotypes at that locus. This is possible because one can recognize the phenotype associated with each allele. BioNB 2210: Lecture 04 Aug. 31, 2011 III. Phenotype determined by many genes A. Continuous phenotypic variation B. Evolution as a change in mean phenotype (we often don t know the gene basis of variation) C. Genetic and environmental effects on behavioral variation...
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This note was uploaded on 08/27/2011 for the course BIONB 2210 taught by Professor Seeley during the Fall '10 term at Cornell University (Engineering School).

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lecture04 - evolutionary change II. Behavioral variation...

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