Scott P. McRobert
Ph.D., Temple University

Research Interests: The genetic, ecological, and evolutionary foundations of animal behavior.

Research in my laboratory deals with the genetic and evolutionary bases of animal behavior, and the role of behavior in ecology. The model system I most commonly employ is sexual behavior in pomace flies of the genus Drosophila, although students in my lab also have the opportunity to work with exotic and endangered species such as poison dart frogs, tropical fish, and turtles.

Drosophila offer a powerful system for the study of behavior. Their reproductive behavior is complex (Fig. 1) and there is a wealth of information regarding their genetics. Current projects include a long-term study to use predation as a selective force to study natural selection, an analysis of the interactions between the species within a natural Drosophila population, and an analysis of the effects of the raised mutation on sexual behvaior.

Current projects involving exotic and endangered species include an analysis of the effects of temperature on tadpole development in poison dart frogs. We have shown that relatively minor changes in developmental temperature have significant effects on metamorphosis rates and survival in these tropical frog species (Fig 2). These effects could have devastating impacts on natural populations if global warming predictions are correct.

We are also involved in a study of the factors that affect shoaling behavior in fish. Shoals are small social groups that offer fish benefits in terms of sexual behavior, feeding, and avoidance of predators. We have described the effects of body coloration on shoal-mate choice and are currently examining other facets of this behavior.

Figure 1.  Drosophila courtship behavior.

Figure 2. Effects of temperature on survival and metamorphosis in Dendrobates