The use of behavioral ecotypes in the study of evolutionary processes / Susan E. Riechert -- Different spatial scales of natural selection and gene flow: the evolution of behavioral geographic variation and phenotypic plasticity / Daniel B. Thompson -- The evolution of behavioral norms of reaction as a problem in ecological genetics: theory, methods, and data / Scott P. Carroll, Patrice Showers Corneli -- Geographic variations on methodological themes in comparative ethology: a natricine snake perspective / Gordon M. Burghardt, James M. Schwartz -- Geographic variation in behavior of a primate taxon: stress responses as a proximate mechanism in the evolution of social behavior / Sue Boinski -- Ecology, phenotype, and character evolution in bluegill sunfish: a population comparative approach / Timothy J. Ehlinger -- The causes and consequences of geographic variation in antipredator behavior: perspectives from fish populations / Anne E. Margurran -- Geographic variation and the microevolution of avian migratory behavior / Peter Berthold -- Effects of relaxed natural selection on the evolution of behavior / Richard G. Coss -- Variation in advertisement calls of anurans across zonal interactions: the evolution and breakdown of homogamy / Murray J. Littlejohn -- Geographic variation in animal communication systems / W. Wilczynski, M. J. Ryan -- Geographic variation in sexual behavior: sex, signals, and speciation / Paul A. Verrell -- Thoughts on geographic variation in behavior / Susan A. Foster, John A. Endler.