Arizona Research Laboratories
Phone: (520) 626-2897
I am broadly interested in animal behavior, neuroethology and evolution. My research focuses on social insects, which have been pivotal in understanding communication, social behavior, sensory systems, learning and memory and behavioral ecology. They can be approached at many levels of biological organization, from individual organisms to a functioning whole colony. My research training is broad, as I have studied social insect colonies from the individual and group levels, but my questions center around understanding adaptations of social behavior. I have investigated questions ranging from neuroanatomy and behavior, chemical cues involved in kin recognition, mechanisms of task specialization in ant colonies, population and colony level genetics of honey bees and mechanisms of genetic caste determination.
behavior and brain plasticity
Hybridization and genetic caste determination
Julian, G.E. & J.H. Fewell (in press) Genetic variation and task specialization in the ant, Acromyrmex versicolor. Animal Behaviour.
Julian, G. E. & W. Gronenberg 2002. Reduction of brain volume correlates with behavioral changes in queen ants. Brain, Behavior and Evolution, 60, 152-164.
Julian, G. E., Fewell, J.H., Gadau, J., Johnson, R.A. & D. Larrabee 2002. Genetic determination of the queen caste in an ant hybrid zone. Proceedings of the National Academy of Sciences, 99, 8157 -8160.
Julian, G.E. & S. Cahan 1999. Undertaking specialization in the desert leaf-cutter ant, Acromyrmex versicolor. Animal Behavior, 58, 437-442.
Cahan, S. & G.E. Julian 1999. Fitness consequences of cooperative colony founding in the desert leaf-cutter ant, Acromyrmex versicolor. Behavioral Ecology, 10, 585-591.
Breed, M.D. & G.E. Julian 1992. Do simple rules apply in honey-bee nestmate discrimination? Nature, 357: 685-7.