LAMMERS, A.R.; PARCHMAN, A.J.; EARLS, K.D.; BIKNEVICIUS, A.R.; REILLY, S.M.; STEVENS, N.J.; Ohio Univ., Athens: The effects of incline on limb forces in a quadrupedal mammal Animals habitually move on non-horizontal terrains yet most locomotion studies quantify movement on level substrates. Our goal was to compare substrate reaction forces in the fore- and hindlimbs of […]
sessions: Session 35
Proximal muscle function during level and incline hopping in tammar wallabies
MCGOWAN, C.P.*; BIEWENER, A.A.; Concord Field Station, Harvard University: Proximal muscle function during level and incline hopping in tammar wallabies. MCGOWAN, C. P.* and BIEWENER, A. A. Concord Field Station, Harvard University, cmcgowan@oeb.harvard.edu Proximal muscle function during level and incline hopping in tammar wallabies. Kangaroos and wallabies are exceptional in their ability to minimize locomotor […]
Locomotion of lizards on inclines and perches Comparative three-dimensional hindlimb kinematics of an arboreal specialist (chameleon) and a terrestrial generalist
HIGHAM, T.E.*; JAYNE, B.C.; Univ. of Cincinnati; Univ. of Cincinnati: Locomotion of lizards on inclines and perches: Comparative three-dimensional hindlimb kinematics of an arboreal specialist (chameleon) and a terrestrial generalist Arboreal animals often traverse three-dimensional networks of narrow perches with variable inclines, but the effects of both incline and narrow surfaces on the locomotor movement […]
Ground Reaction Forces During Level, Incline, and Decline Trotting
DUTTO, D.J.*; HOYT, D.F.; WICKLER, S.J.; California State Polytechnic Univ., Pomona CA: Ground Reaction Forces During Level, Incline, and Decline Trotting Little is known of the relative contributions of quadruped forelimbs and hind limbs to locomotion up and down hills. Two runways, one level and one with a 5.7 deg slope were used to record […]
Serotonergic Regulation of Glucocorticoid Release in Male White-Crowned Sparrows
SPERRY, TS; WINGFIELD, JC; Univ of Washington; Univ of Washington: Serotonergic Regulation of Glucocorticoid Release in Male White-Crowned Sparrows To maximize fitness, free-living animals modulate their stress response in anticipation of predictable conditions and to cope with unpredictable, environmental perturbations. Modulation of the hypothalamic-pituitary-adrenal axis (HPA) can occur at multiple levels with two principle endpoints […]
Ontogeny of the stress response comparison of two subspecies of white-crowned sparrow nestlings
WADA, H.*; HAHN, T.P.; BREUNER, C.W.; University of Texas at Austin; University of California, Davis; University of Texas at Austin: Ontogeny of the stress response: comparison of two subspecies of white-crowned sparrow nestlings Elevation of corticosterone (CORT) in response to stress is known to increase survival in adults by redirecting behavior and physiology. However, the […]
Maternal Corticosterone Slows Chick Growth and Increases Adult Stress Response
HAYWARD, L.S.; WINGFIELD, J.C.; Univ. of Washington, Seattle; Univ. of Washington, Seattle: Maternal Corticosterone Slows Chick Growth and Increases Adult Stress Response In all vertebrates levels of circulating gluccocorticoids rise in response to perturbations ranging from food shortage to encounters with predators to infection. We experimentally elevated the primary avian gluccocorticoid, corticosterone, in laying Japanese […]
Effects of Aeromonas hydrophila exposure on wood frog tadpoles and juveniles
BELDEN, L.K.*; RUBBO, M.J.; L�PEZ, M.; RAFFEL, T.R.; MIRZA, R.S.; KIESECKER, J.M.; Virginia Polytechnic Institute and State University; Pennsylvania State University; Pennsylvania State University; Pennsylvania State University; Pennsylvania State University; Pennsylvania State University; ; : Effects of Aeromonas hydrophila exposure on wood frog tadpoles and juveniles Like all organisms, amphibians are host to a wide […]
Differences in Stress Responsiveness and Immunocompetence in Gopher Tortoises With and Without Symptomatic Upper Respiratory Tract Disease
KAHN, P.F.*; GUYER, C.; MENDON�A, M.T.; Auburn University; Auburn University; Auburn University: Differences in Stress Responsiveness and Immunocompetence in Gopher Tortoises With and Without Symptomatic Upper Respiratory Tract Disease The gopher tortoise of the southeastern United States has become a threatened species primarily due to habitat infringement. In recent years, however, the tortoises have faced […]
A functional corticotropin-releasing hormone signaling system in Xenopus tadpole tail
BOORSE, GC; DENVER, RJ; University of Michican, Ann Arbor: A functional corticotropin-releasing hormone signaling system in Xenopus tadpole tail Corticotropin-releasing hormone (CRH) is the principal neurohormone regulating the hypothalamo-pituitary-adrenal axis. However, the distribution and actions of CRH are not limited to the neuroendocrine system. In mammals and frogs several peripheral tissues are known to express […]
