GIBBS, V.K.*; WATTS, S.A.; Univ. of Alabama at Birmingham: The Effect of Temperature on Nutrient Absorption in the Regular Sea Urchin Lytechinus variegatus Although seldom reported, temperature may be a key environmental factor influencing nutrient utilization in ectothermal organisms. The following study investigated nutrient absorption in response to three various exposure temperatures. Adult Lytechinus variegatus […]
year: 2004
Sex differentiation in three populations of Malaclemys a turtle with temperature-dependent sex determination
ALLMAN, Phil; PLACE, Al; ROOSENBURG, Willem; Ohio University, Athens, OH 45701; Center of Marine Biotechnology, University of Maryland, Baltimore, MD 21202; Ohio University, Athens, OH 45701: Sex differentiation in three populations of Malaclemys: a turtle with temperature-dependent sex determination Sexual differentiation in reptiles with temperature-dependent sex determination (TSD) is known to be influenced by several […]
Sex Influences Immune Responses Differently in the House Sparrow and a Monomorphic Congener, the Eurasian Tree Sparrow
LEE, Kelly A.; WIKELSKI, Martin; HASSELQUIST, Dennis; Princeton University; Princeton University; Lund University, Sweden: Sex Influences Immune Responses Differently in the House Sparrow and a Monomorphic Congener, the Eurasian Tree Sparrow Seasonal and sex differences in immune responses have been well-documented in mammals but less extensively in other vertebrates. Sex differences in immune responses are […]
Evaluation of incubation temperatures in green turtle nests at French Frigate Shoals, northwest Hawaiian Islands
ESTES, J.*; WIBBELS, T.; BALAZS, G.; Univ. of Alabama, Birmingham; Univ. of Alabama, Birmingham; National Marine Fisheries Service, Honolulu, Hawaii: Evaluation of incubation temperatures in green turtle nests at French Frigate Shoals, northwest Hawaiian Islands. The green sea turtle, Chelonia mydas, possesses temperature-dependent sex determination (TSD) in which the incubation temperature of the egg determines […]
Effects of food supplementation on the reproductive ecology of female Western Diamond-backed Rattlesnakes (Crotalus atrox)
TAYLOR, E.N.*; MALAWY, M.; DENARDO, D.F; Arizona State University; Arizona State University; Arizona State University: Effects of food supplementation on the reproductive ecology of female Western Diamond-backed Rattlesnakes (Crotalus atrox) The physiological processes of desert reptiles may be limited by the availability of food. For example, food availability may influence growth and reproductive output. We […]
The role of intrinsic and extrinsic factors in determining social status in crayfish
MOORE, Paul A.; BERGMAN, Daniel; Bowling Green State University, Bowling Green, OH 43403; Bowling Green State University, Bowling Green, OH 43403: The role of intrinsic and extrinsic factors in determining social status in crayfish Individuals commonly modify their behavior in the presence of a conspecific. This is particularly true in the context of aggressive exchanges, […]
Signaling and modulation in retinal amacrine cells
GLEASON, Evanna L.; Louisiana State University: Signaling and modulation in retinal amacrine cells Signal processing in the vertebrate retina depends upon the transfer of information between retinal neurons at their synapses. Amacrine cells are a morphologically and functionally diverse group of retinal interneurons that signal primarily in the inner retina. Although amacrine cells make up […]
Prolonged exposure to social odors alters subsequent social interactions in crayfish
BERGMAN, D.A.*; MOORE, P.A.; Bowling Green State University; Bowling Green State University: Prolonged exposure to social odors alters subsequent social interactions in crayfish Chemical signals are used to communicate social status and can consequently alter aggressive behavior. Here we demonstrate that the exposure to social odors, in the absence of other sensory contact with a […]
Novel steroid modulation of hypothalamic neuroendocrine cells
DI, S.; MALCHER LOPES, R.; TASKER, J.G.; Tulane University; Tulane University; Tulane University: Novel steroid modulation of hypothalamic neuroendocrine cells Adrenal corticosteroids have both fast and slow feedback effects on pituitary hormone release via actions in the hypothalamus. Using whole-cell patch clamp electrophysiology in hypothalamic slices, we have studied the acute effects of glucocorticoids on […]
Nitric oxide modulates GABAergic signaling in retinal amacrine cells
HOFFPAUIR, B K*; GLEASON, E L; Louisiana State University; Louisiana State University: Nitric oxide modulates GABAergic signaling in retinal amacrine cells Retinal amacrine cells are a diverse and relatively poorly understood group of interneurons that form synapses in the inner plexiform layer (IPL) of the vertebrate retina. The majority of these cells express GABA, a […]
