VASQUEZ, M. S.*; BURNAFORD, J. L.; University of Puget Sound; University of Puget Sound: The role of UV radiation in microhabitat selection by the seastar, Pisaster ochraceus Ultraviolet radiation (UVR, 280-400nm) has been found to cause cellular damage in a wide variety of organisms from many phylogenetic groups. UVR can penetrate into surface waters, and […]

MAHON, A.R.*; CARPENTER, K.E.; Old Dominion University: The recombination activating gene 1 (RAG1) and phylogenetic inference of the suborder Percoidei within the Perciformes (Teleostei) No serious attempt has been made to test the monophyly of the suborder Percoidei (Perciformes: Teleostei) or infer the evolutionary relationships of its 71 putative families within the order Perciformes. To […]

STEARNS, M.H.*; THOMBRE, R.M.; GILLEN, C.M.; ITAGAKI, H.; Kenyon College; Kenyon College; Kenyon College; Kenyon College: The metabolic rates and the expression of a cation-chloride cotransport protein during development in larval Manduca sexta. Investigations of metabolic rates in organisms of different sizes typically involve different individuals of different species. Using the larvae of the moth […]

OYELEYE, M.O.; CHATTERJEE, J.; ARACENA, J.*; Mississippi University for Women; Mississippi University for Women; Mississippi University for Women: The feeding and searching behavior of fruit flies (Drosophila melanogaster) on patches of sucrose: effects of quinine and substrate color Fruit flies (Drosophila melanogaster) deprived of food for 24 hours readily feed on 0.25 M sucrose solutions […]

SPEZZANO JR., L.C.*; CLAUSSEN, D.L.; Miami University; Miami University: The fast and the furious: Using simulated habitats to study locomotor behavior during agonism in juvenile freshwater turtles Chrysemys picta One-year old painted turtles Chrysemys picta select significantly shallower freshwater habitats than older age classes suggesting juvenile-juvenile interactions are frequent and ecologically relevant. Unfortunately, field studies […]

LEWIS, K.K.*; CEBRA-THOMAS, J.A.; GILBERT, S.F.; Swarthmore College; Swarthmore College; Swarthmore College: The expression of signaling molecules in the developing scute of the turtle Trachemys scripta The reptilian scale is one of the major adaptations that allowed early reptiles to colonize the land. Yet reptile scales, especially the chelonian scute, are all but unknown in […]

SCEMAMA, Jean-Luc*; LE PABIC, Pierre; STELLWAG, Ed; East Carolina University; East Carolina University; East Carolina University: The evolutionary developmental divergence of vertebrate Hox paralog group 2 gene expression. Segmental identity of structures located in the hindbrain and branchial arches of vertebrates are determined, at least in part, through the action of Hox paralog group 2 […]

BRUNER, A.M.*; ROSS, J.A.; PEICHEL, C.L.; Fred Hutchinson Cancer Research Center; University of Washington; Fred Hutchinson Cancer Research Center: The evolution of sex determination in stickleback fish Sex determination pathways should be highly conserved, yet they can diverge even between closely related species. The stickleback family, Gasterosteidae, provides an opportunity to investigate the mechanisms that […]

STROTHER, J.A.*; MCHENRY, M.J.; University of California, Irvine; University of California, Irvine: The effects of morphology and behavior on phototaxis in ascidian larvae. A large diversity of marine invertebrate larvae influence their dispersal by orienting their swimming to light. Despite an abundance of research that has measured ontogenetic patterns of phototaxis, it remains unclear how […]

MACH, M.E.; University of Washington: The effects of embryonic heat stress on hatching size and larval growth of the bubble snail Melanochlamys diomedea. An organism�s growth and survival depends on the environmental conditions it experiences. For organisms with complex life histories, each life history stage may be affected differently by these conditions, and the effects […]