NADEAU, J.A.; CHATELAIN, K.B.; RUSSELL, D.J.; CONWELL, N.; OKAZAKI, R.K.; Siena College; Weber State University; Weber State University; Weber State University; Weber State University: Heat Shock Proteins in the Utah Crayfish, Pacifastacus gambelii The native Utah crayfish, Pacifastacus gambelii, can be exposed to high temperatures, especially in the summer season. These thermal stresses have often […]

YU, J.-K.*; HOLLAND, N.D.; HOLLAND, L.Z.; University of California, San Diego; University of California, San Diego; University of California, San Diego: FoxD protein evolution and the origin of vertebrate neural crest Neural crest is unique to vertebrates. Embryologically, neural crest derives from the edges of the neural plate and adjacent non-neural ectoderm, and undergoes an […]

SIMMONS, S.E.*; CROCKER, D.E.; COSTA, D.P.; Univ. of California, Santa Cruz; Sonoma State University, Rohnert Park; Univ. of California, Santa Cruz: Foraging strategies differ in sexually dimorphic northern elephant seals (Mirounga angustirostris). Separation of feeding from breeding is a distinctive life history trait of many phocids. Male and female elephant seals differ in their annual […]

MINSUK, S.B.; Konrad Lorenz Institute, Altenberg, Austria: First steps toward a generalized model cell for evo-devo computer simulations Developmental simulations usually model a few cell types in a simple tissue, and conform to details of specific organisms. Simulated evolution must model cells and tissues, but proceed at the level of organisms and populations in environments. […]

BLACKBURN, D.G.; JOHNSON, A.R.; PETZOLD, J.L. ; Trinity College, Hartford: Fetal membrane ultrastructure in the corn snake, Pantherina guttatus In amniotes, fetal (extraembryonic) membranes are responsible for all physiological exchange between eggs and their environments. The anatomical basis for such exchange is largely unknown in reptiles, and has not previously been studied in oviparous snakes. […]

TAYLOR, S.; BLAIR, K.; ARACENA, J.; Mississippi Univ. for Women; Mississippi Univ. for Women; Mississippi Univ. for Women: Feeding behavior of fruit flies (Drosophila melanogaster) on patches of sucrose solutions: Effects of food deprivation and quinine A field collected population of fruit flies (Drosophila melanogaster) was maintained in the laboratory to study foraging behavior on […]

PEMBERTON, A. J.; BISHOP, J. D. D.; Marine Biological Association of the UK; Marine Biological Association of the UK: Factors affecting fission in a colonial ascidian Colony fission is an integral part of the life history of many modular organisms, allowing a single gentic individual to exist as two or more spatially discrete sub-colonies. This […]

RAMOS, DM; MONTEIRO, A; SUNY Buffalo; SUNY Buffalo: Eyespot development in Bicyclus anynana: Investigating the regulation and function of the transcription factor engrailed Butterfly eyespots have become a popular model system for the study of evolution and development. In 2001, Brunetti et al used antibody stainings to provide strong correlational evidence for the involvement of […]

WU, Su-Hua; LEE, Chi-Ying; National Changhua University of Education, Changhua, Taiwan, R.O.C; National Changhua University of Education, Changhua, Taiwan, R.O.C: Expression of crustacean hyperglycemic hormones in the hemocytes of the crayfish Procambarus clarkii Crustacean hyperglycemic hormone (CHH) is a neurohormone originally identified in the X-organ sinus gland (XO-SG) of the eyestalk ganglia and primarily involved […]

KUHN, C.E.*; COSTA, D; Univ. of California, Santa Cruz: Examination of the foraging strategies of a top marine predator: the California sea lion Studies of the foraging behavior of marine predators have primarily been limited to investigations of diet from stomach content or scat analysis. While this provides useful information on foraging at the population […]