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Roy Caldwell's research


My research interests lie in invertebrate behavior and ecology with much of my work centering on the behavioral ecology of stomatopod crustaceans, a group of tropical marine predators. The initial focus of this research was on how the evolution of potentially lethal weapons influenced stomatopod biology. These studies dealt mainly with communication and the function of aggression. More recent research has expanded to include the evolution of mating systems, interspecific communication, sensory ecology, prey selection and larval biology. We are currently initiating studies on the genetic structure of stomatopod populations attempting to deduce the timing and pathways of dispersal. We are also using stomatopod populations as bioindicators to assess the health of tropical coastal habitats. Recently, I have become interested in the behavior of blue-ringed and other pygmy octopuses. We are currently studying the reproductive and aggressive behavior of several Indo-Pacific species.

Graduate students in my laboratory are not constrained to working on tropical marine invertebrates although an emphasis is maintained on invertebrate behavior and ecology. Students in my laboratory are currently studying the impact of blast fishing on Indonesian coral reefs, the role of stomatopods structuring prey populations, monogamous mating systems in stomatopods deep-sea isopod evolution and behavior and octopus behavior and systematics.






UC Berkeley Integrative Biology

UC Berkeley


Updated December 2007