CRESPI, E.J.*; DENVER, R.J.; Univ. of Michigan, Ann Arbor; Univ. of Michigan, Ann Arbor: Food restriction during late prometamorphosis alters post-metamorphic growth, feeding behavior, and physiology in Xenopus laevis Studies in mammals have shown that activation of the neuroendocrine stress axis in the fetus or neonate can have profound effects on basal activity and reactivity […]

HATTORI, Tomoko; BREUNER , Creagh W; WILCZYNSKI , Walter ; The University of Texas at Austin ; The University of Texas at Austin ; The University of Texas at Austin : Comparison of total and free steroid hormones in dominant and subordinate male green anole lizards The presence of plasma binding globulins such as corticosterone-binding […]

SMITH, T.M.*; MANZON, R.G.; Univ. of Regina, Saskatchewan, Canada; Univ. of Regina, Saskatchewan, Canada: Cloning and developmental expression of a putative sea lamprey (Petromyzon marinus) transthyretin cDNA. Unlike all other metamorphosing vertebrates, the onset of sea lamprey (Petromyzon marinus) metamorphosis coincides with a rapid drop in total serum thyroid hormone (TH) levels, TH levels remain […]

SHECHTER , A; FREIMAN , A; TOM , M; YUDKOVSKI , Y; CHANG , A.S; CHANG , S.E; SAGI , A*; Ben-Gurion University ; Ben-Gurion University ; Israel Oceanographic and Limnological Research; Israel Oceanographic and Limnological Research; Univ of California, Bodega Marine Laboratory; Univ of California, Bodega Marine Laboratory; Ben-Gurion University ; : An inducible […]

ALBERS, MA; BRADLEY, TJ; Univ. of California, Irvine; Univ. of California, Irvine: The Evolution of Saline-Tolerance in Mosquito Larvae Of the mosquito species belonging to the genus, Ochlerotatus, several have been shown to be saline-tolerant as aquatic larvae while others are restricted to freshwater. This saline-tolerance is associated with a morphological difference in the rectum, […]

HAUSSMANN, M.F.; WINKLER, D.W.; VLECK, C.M.; Iowa State Univ.; Cornell Univ.; Iowa State Univ.: Longer telomeres may confer an individual survival advantage in a wild bird Elucidating factors that influence survival in wild populations has been a major thrust of physiological ecology. Telomeres are the terminal caps on all eukaryotic chromosomes. During normal aging loss […]

PAITZ, R.T.; HAUSSMANN, M.F.; BOWDEN, R.M.; JANZEN, F.J.; VLECK, C.M.; Illinois State Univ.; Iowa State Univ.; Illinois State Univ.; Iowa State Univ.; Iowa State Univ.: Long telomeres may minimize the effect of aging in the painted turtle Nearly all organisms show evidence of aging, involving progressive loss of physiological functioning and increasing risk of death. […]

MU�OZ-GARCIA, A.*; WILLIAMS, J.B.*; The Ohio State University; The Ohio State University: Lipids of the stratum corneum vary with cutaneous water loss in House Sparrows (Passer domesticus) from arid and mesic environments Terrestrial vertebrates that live in extremely arid environments are challenged to control for excessive water losses in order to maintain their water homeostasis. […]

ANGILLETTA, M.J.*; NIEWIAROWSKI, P.H.; DUNHAM, A.E.; LEACHE, A.D.; PORTER, W.P.; Indiana State Univ., Terre Haute ; Univ. of Akron, Akron; Univ. of Pennsylvania, Philadelphia; Univ. of California, Berkeley; Univ. of Wisconsin, Madison: Bergmann�s clines in ectotherms: illustrating a life-history perspective with sceloporine lizards The generality and causes of Bergmann�s rule have been debated vigorously in […]

SPENCER, R-J; Iowa State University: Adaptive significance of TSD in turtles: Sex specific fitness advantages of overwintering in painted turtles. Temperature dependent sex determination (TSD) has evolved independently in many taxa. Underlying the theory of an adaptive significance of TSD is that there are sex specific fitness advantages of particular incubation temperatures. These advantages have […]