BERKE, SK; WOODIN, SA; University of South Carolina; University of South Carolina: Self-decoration: An Onuphid polychaete example Behaviors with analogues across phyla suggest the existence of fundamental processes which drive behavioral evolution. Knowledge of such processes allows us to develop a theoretical framework in which to consider behavioral evolution in diverse systems. Behaviors spanning taxa […]

POWELL, M/L; KAVANAUGH, S/I; SOWER, S/A; University of New Hampshire, Durham; University of New Hampshire, Durham; University of New Hampshire, Durham: Seasonal Gonadal Development in the Atlantic Hagfish, M. glutinosa Hagfish are an important part of the benthic community in the deep ocean, consuming decaying animal material and recycling nutrients. In recent years they have […]

ELF, P.*; LANG, J.; FIVIZZANI, A.; University of Minnesota Crookston; University of North Dakota, Grand Forks: Relationship between Yolk Hormone Levels and Female Size in two TSD Turtles Yolk steroid hormones have been reported to impact development, growth and behavior in avian species. While these interactions have not yet been investigated in oviparous reptiles, we […]

MCDONALD, M. Danielle; WOOD, Chris M.; WALSH, Patrick J.; RSMAS, University of Miami, Miami, USA; McMaster University, Hamilton, CANADA; RSMAS, University of Miami, Miami, USA: Pulstile urea excretion in the gulf toadfish: The role of the hypothalamic-pituitary-interrenal axis An unusual pulsatile urea excretion mechanism (tUT) exists in the gills of the gulf toadfish that is […]

FREAMAT, M.*; SOWER, S.A.; University of New Hampshire, Durham; University of New Hampshire, Durham: Progress in Molecular Cloning of a cDNA Encoding the Gonadotropin Hormone Receptor in the Sea Lamprey. As a member of the class Agnatha, sea lampreys, Petromyzon marinus, represent one of the two oldest lineages of vertebrates. Given their phylogenetic position, lampreys […]

CROCKETT, E.L.*; HASSETT, R.P.; SHULTZ, R.W.; FUNK, K.R.; Ohio University, Athens: Preparation of Plasma Membranes from the Copepod Acartia hudsonica Marine zooplankton, typically dominated by copepods (Class Crustacea), are a key link in the foodweb. Knowledge of how temperature and nutrition affect the biology of these animals is essential for understanding factors that limit growth. […]

BLACKBURN*, D. G.; JOHNSON, A. R.; PETZOLD, J. L.; Trinity College, Hartford, CT: Placental ultrastructure in the brown snake Storeria dekayi Placental membranes in viviparous snakes function in gas exchange, as well as in the transfer of water and nutrients to the developing embryos. Using light and transmission electron microscopy, we examined placental morphology in […]

MACDOUGALL-SHACKLETON, S A*; HERNANDEZ, A M; VALYEAR, K F; CLARK, A P; Univ. of Western Ontario; Univ. of Toronto; Univ. of Western Ontario; McMaster Univ.: Photostimulation induces rapid growth of song-control brain regions in male and female chickadees (Poecile atricapilla) We explored the effects of photoperiod and sex on the song-control regions of the brain […]

HUNT, J.A.; FARRAR, E.S.; Iowa State University; Iowa State University: Phenotypic plasticity of the digestive system in Bufo americanus and Xenopus laevis in response to diet Phenotypic plasticity in amphibian larvae in response to diet has been explored with respect to growth, time to metamorphosis, and development of trophic morphs, but the role of digestive […]

RICHARDS, Jeff G; SEMPLE, Jeff W*; SCHULTE, Patricia M; Univ. of British Columbia, Vancover, British Columbia; Univ. of Waterloo, Waterloo, Ontario; Univ. of British Columbia, Vancouver, British Columbia: Pattern of Na+/K+ ATPase isoform expression in rainbow trout (Oncorhynchus mykiss) following abrupt seawater transfer It is well established that increases in Na+/K+ ATPase activity in gill […]