GOLDMAN, Daniel I.*; CHEN , Tao C.; FULL, Robert J.; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley: A Template for Rapid Vertical Climbing Inverted pendulum and spring-mass templates exist for walking and running, respectively, but no such low parameter, general model exists for rapid vertical climbing. Surprisingly, rapid vertical climbing […]

DEMPSEY, T.D.*; ESMAILKA, L.R.; HAGOOD, J.G.; KITAYSKY, A.S.; Univ. of Alaska, Fairbanks; Univ. of Alaska, Fairbanks; Univ. of Alaska, Fairbanks; Univ. of Alaska, Fairbanks: Perception of food availability affects the adrenocortical stress response of Northern Shovelers In birds, corticosterone (CORT) secretion increases in response to nutritional deficits. In this study, we examined whether the perception […]

WHITMAN, B.A.*; BREUNER, C.W.; DUFTY, A.M; Boise State University; University of Texas at Austin; Boise State University: Investigator Handling, Stress, and Nestlings: Should We be Concerned? It is well established in the mammalian literature that early developmental environment and experiences can have profound and lasting consequences. For example, neonatal stressors can alter gene expression to […]

BREWER, J.H.**; O’REILLY, K.M.; BUCK, C.L.; Univ. of Alaska Fairbanks; Univ. of Portland; Univ. of Alaska Fairbanks: Interannual variation in adrenal responsiveness of black-legged kittiwake chicks: An indicator of forage availability? Productivity (fledglings/nest attempt) of black-legged kittiwakes (Rissa tridactyla) is strongly influenced by local foraging conditions. Recent studies demonstrate that corticosterone levels of breeding kittiwakes […]

HEIDINGER, Britt/J*; NISBET, Ian/CT; KETTERSON, Ellen/D; Indiana University; Indiana University: Attenuation of the stress response may mediate an increase in reproductive performance with age in the common tern Sterna hirundo In many organisms, reproductive performance increases with age. However, we currently have little information about the physiological mechanisms underlying this commonly observed pattern. One physiological […]

WILLIAMS, C.T.*; KITAYSKY, A.S.; BUCK, C.L.; Univ. of Alaska Fairbanks; Univ. of Alaska Fairbanks; Univ. of Alaska Fairbanks: Adrenocortical activity in tufted puffin nestlings varies with growth rates and fledging behavior Birds modulate the hypothalamus-pituitary-adrenal axis (HPA) in response to changes in life and changes in nutritional status. Baseline levels of corticosterone (cort) and the […]

OLSON, Christopher R.*; VLECK, Carol M.; VLECK, David; Iowa State University, Ames: Temperature and metabolic rate: embryonic birds depart from an Arrhenius relationship Temperature has a direct effect on metabolism and growth. This effect is of particular importance to organisms that naturally experience a range of body temperatures induced by environmental or behavioral changes. We […]

THOMPSON, J.T.*; SZCZEPANSKI, J.A.; BRODY, J.H.; CRESCENTI, L.M.; St. Joseph’s University, Philadelphia, PA; St. Joseph’s University, Philadelphia, PA; St. Joseph’s University, Philadelphia, PA; St. Joseph’s University, Philadelphia, PA: Ontogeny of isometric force production by the circular mantle muscles of loliginid squids and cuttlefishes. Thick filament length in the mantle muscles that provide power for jet […]

MENZE, M.A.*; HAND, S.C.; Louisiana State University; Louisiana State University: Lessons in Apoptosis from an Invertebrate Extremophile, Embryos of Artemia franciscana Embryos of the brine shrimp A. franciscana are exceptional in their ability to tolerate anoxia and desiccation at room temperature for years and to maintain viability under conditions that are known in mammalian species […]

SECOR, Stephen M.; University of Alabama: Heart position in snakes, ontogenetic shifts and correlation with other organs It has been hypothesized for snakes that heart position is adaptively link to habitat. From aquatic to terrestrial to arboreal habitats as snakes are more often vertically oriented, there is an increase tendency for their hearts to be […]