Meeting Abstract 12.11  Thursday, Jan. 3  Seasonal variation in the stress physiology of an opportunistic, nomadic songbird, the red crossbill (Loxia curvirostra) CORNELIUS, JM*; BREUNER, CW; HAHN, TP; Univ. of California, Davis; Univ. of Montana; Univ. of California, Davis cornelius@ucdavis.edu Basal levels of glucocorticoids, as well as responsiveness to environmental stressors, are often modulated seasonally in passerine […]

Meeting Abstract 12.7  Thursday, Jan. 3  Rapid changes in corticosterone, corticosteroid binding globulin, and testosterone in response to food availability in the zebra finch LYNN, S.L.*; STAMPLIS, T.B.; WEIDA, N.; The College of Wooster; The College of Wooster; The College of Wooster slynn@wooster.edu Opportunistically breeding zebra finches modulate reproductive physiology in response to changes in immediate environmental […]

Meeting Abstract 12.4  Thursday, Jan. 3  Measuring the Fight-or-Flight response with Heart Rate Variability analysis DICKENS, Molly J.*; CYR, Nicole E; ROMERO, L. Michael; Tufts University; Wellesley University; Tufts University molly.dickens@tufts.edu While the Fight-or-Flight response is a major component of stress physiology, measuring this response is extremely difficult in wild species. One solution is to measure a […]

Meeting Abstract 12.8  Thursday, Jan. 3  Gonadal and Nutritional Modulation of Adrenocortical Cellular Steroidogenesis in Sceloporus Lizards JOHN-ALDER, H.**; CARSIA, R.; COX, R.; BARRETT, M.; MCILROY, P.; Rutgers Univ., New Brunswick; UMDNJ, Stratford; Dartmouth Col., Hanover; Rutgers Univ., New Brunswick; Rutgers Univ., Camden henry@aesop.rutgers.edu Variation in plasma glucocorticoids is ubiquitous, but the importance of malleability in adrenocortical […]

Meeting Abstract 12.5  Thursday, Jan. 3  Effects of Hurricane Rita on Alligators in Southwest Louisiana LANCE, Valentine A.*; ELSEY, Ruth M.; TROSCLAIR III, Phillip; MERCHANT, Mark; San Diego State University; Louisiana Department of Wildlife and Fisheries; Louisiana Department of Wildlife and Fisheries; McNease State Univeristy lvalenti@sunstroke.sdsu.edu Hurricane Rita produced an enormous tidal surge when it came ashore […]

Meeting Abstract 12.2  Thursday, Jan. 3  Chronic Stress in Bridge- and Cave-roosting Brazilian Free-tailed Bats: Assessing Cortisol Response to Hormonal Challenges ALLEN-HRISTOVA, L.C.*; WIDMAIER, E.W.; KUNZ, T.H; Boston University, Boston; Boston University, Boston; Boston University, Boston allenlou@bu.edu Over the past two decades, the Brazilian free-tailed bat (Tadarida brasiliensis) has increasingly used bridges as roosts in the southern […]

Meeting Abstract 12.6  Thursday, Jan. 3  Characterization of the corticosteroid stress response in the Atlantic stingray EVANS, A.N.*; NUNEZ, B.S.; University of Texas Marine Science Institute aevans@utmsi.utexas.edu A critical component of the vertebrate response to stress is the synthesis of adrenocortical steroid hormones termed glucocorticoids (GCs). Elasmobranchs produce a unique GC, 1α-hydroxycorticosterone (1α-B). While much is known […]

Meeting Abstract 12.10  Thursday, Jan. 3  Analyzing fecal steroid metabolites: A non-invasive tool to monitor adrenocortical and gonadal activity in guinea pigs (Cavia aperea f. porcellus) BAUER, B.**; PALME, R.; MACHATSCHKE, I.H.; DITTAMI, J.; HUBER, S.; University of Veterinary Medicine Vienna, Austria; University of Veterinary Medicine Vienna, Austria; University of Vienna, Austria; University of Vienna, Austria; University […]

Meeting Abstract 12.5  Sunday, Jan. 4  The role of Fgf8 in the origin of interdigital webbing in cetaceans COOPER, Lisa Noelle*; THEWISSEN, J.G.M.; NEOUCOM; NEOUCOM l.noelle.cooper@gmail.com Cetaceans (whales, dolphins, and porpoises) evolved a soft-tissue flipper that encases the bony digits and generates lift during feeding maneuvers and locomotion. This flipper impedes individual digital movement and creates a […]

Meeting Abstract 12.3  Sunday, Jan. 4  The evolution of developmental patterns in the Anolis skeleton SANGER, TJ*; MAHLER, DL; LOSOS, JB; ABZHANOV, A; Harvard Univeristy tsanger@oeb.harvard.edu One of the major challenges in modern biology is elucidating both the ultimate and proximate mechanisms of adaptive phenotypic evolution. Caribbean Anolis lizards exhibit numerous morphological specializations that are well understood […]