OUFIERO, C.E.*; ANGILLETTA, M.J.; Indiana State Univ., Terre Haute: Embryo Energetics and Thermal Acclimation at Fluctuating Temperatures Variation in incubation temperature may cause differences in metabolic rate at the embryonic stage, which may also persist in juveniles. Previous studies of reptiles have documented effects of constant incubation temperatures on the energetics of embryos and the […]

O’REILLY, K.M.*; FORTIN, J.K.; GJELTEN, A.A.; Univ. of Portland, OR; Washington State Univ., Pullman; Univ. of Portland, OR: Elevated adrenocortical response to stress in overwintering chickadees and nuthatches at high elevation Birds living at high elevations experience more rigorous winter weather conditions than birds living at low elevations. One mechanism birds may use to cope […]

KIM, Hyoung Tae; OLSON, Wendy M.; HALL, Brian K.; Dalhousie University, Halifax, N.S.: Effects of hind limb denervation on development of sesamoids in Hymenochirus boettgeri Heterotopic skeletal elements, including sesamoids, are common in vertebrates but rare in amphibians. The pipid frog Hymenochirus is unusual among anurans in that it has nine (or more) different heterotopic […]

SMITH, M.C.*; SHAH, P.J.; MORENO, V.N.; TALLIS, M.D.; GALATI, L.D.; PROPPER, C.R.; Northern Arizona University, Flagstaff: Effects of a Common Pesticide on Behavior and Adrenal Hormone Secretion in an Amphibian Pesticides and other human-made compounds in our environment are known to have profound effects on the reproductive system. Yet, little is known about the potential […]

BARNARD, E.; BAGATTO, B.; University of Akron; University of Akron: Effects of Maternal Diet on Reproductive Strategies and Embryo Development in the Zebrafish, Danio rerio Organisms are constantly challenged with changes in the environment. To survive and pass on their traits, they must be capable of adapting to the changes that take place in that […]

BIRCHARD, G.F.*; George Mason Univ.: Effects of Incubation Temperature on Growth and Oxygen Consumption Rate in Bobwhite Quail Eggs Incubation temperature has been shown to have significant effects on embryonic and postnatal growth and energetics in birds. Bobwhite (Colinus virginanus) eggs were incubated at a constant 37.5 C (control) or at 35.5 C for the […]

SHREVE, S.M.*; YI, S.-X.; LEE, R.E.; Miami University: Effects of Dietary Cholesterol on Cold Tolerance and Reproductive Output in Drosophila melanogaster Other investigators have shown that cholesterol, an important component of cell membranes, in some ectotherms increases with cold-hardening. As an initial study, we decided to test the hypothesis that dietary cholesterol will improve cold […]

NEPHEW, B.C.*; AARON, R.S.; ROMERO, L.M.; Tufts University: Effects of Arginine Vasotocin on the Corticosterone, Heart Rate, and Behavioral Responses of Starlings to Crowding Arginine vasotocin (AVT) has been previously shown to have significant effects on heart rate (HR), plasma corticosterone (CORT) concentrations, and numerous behaviors in independent studies. In this study, we examined all […]

BURTON, M.M.*; HOPKINS, P.M.; Univ. of Oklahoma: Ecdysteroid Control of the Molt Cycle in the Fiddler Crab, Uca pugilator Arthropods have a non-living exoskeleton that is composed of a lipoprotein epicuticle, underlying exocuticle and deeper thick endocuticle. The deepest component, the membranous layer, is an uncalcified zone immediately above a sheet of epithelial cells called […]

GRAY, A.C.*; KLINGER, T.; Georgia Southern University, Statesboro; University of Washington, Seattle: Does limpet grazing restrict the abundance of Fucus on oyster shells? The oyster Crassostrea gigas is commonly found in the rocky intertidal zone of the San Juan Islands, where it is an invasive species. Various species of native limpets are often found on […]