Meeting Abstract 69-7  Sunday, Jan. 5 15:00 – 15:15  Sex-specific causes and consequences of variable testosterone circulation in a tropical songbird BOERSMA, J*; JONES, JA; KARUBIAN, J; SCHWABL, H; Washington State University; Tulane University; Tulane University; Washington State University jordan.boersma@gmail.com There is considerable debate about whether testosterone regulates traits similarly in male and female vertebrates. Meta-analyses of […]

Meeting Abstract 69-2  Sunday, Jan. 5 13:45 – 14:00  Melatonin modulates seasonal changes in neurosteroid levels and territorial aggression in male Siberian hamsters (Phodopus sungorus) MUNLEY, KM*; DEYOE, JE; ADANIYA, CH; NOWAKOWSKI, AM; REN, CC; MURPHY, GV; REINHART, JM; DEMAS, GE; Indiana University kmunley@indiana.edu http://kmunley.com Numerous studies have shown that circulating gonadal steroids are positively correlated with […]

Meeting Abstract 69-3  Sunday, Jan. 5 14:00 – 14:15  Expanding the acute stress phenotype: DNA damage rapidly increases in house sparrows GORMALLY, BMG*; ESTRADA, RS; MCVEY, M; ROMERO, LM; Tufts University; Tufts University; Tufts University; Tufts University brenna.gormally@gmail.com http://brennagormally.com Corticosterone (Cort) is the metric of choice in stress physiology studies. Despite its popularity, this hormone often does […]

Meeting Abstract 69-1  Sunday, Jan. 5 13:30 – 13:45  A Different Kind of Wax Museum: Forecasting Population Trajectories of Baleen Whales Using Reproductive Parameters From Earplugs. CRAIN, DD*; USENKO, S; MANSOURI, F; WINFIELD, ZC; ZERBINI, AN; GABRIELE, C; SABIN, R; POTTER, C; TRUMBLE, SJ; Baylor University, Waco, TX; Baylor University, Waco, TX; Baylor University, Waco, TX; Baylor […]

VOGEL, S. : Muscle as Engine: A Biomechanical Look at Some Ancient Tasks Using muscle to power large-scale tasks presents specific difficulties. For instance, the relatively uniform size of people and draft animals imposes problems of scaling, and muscle’s inability to produce rotary motion means that non-functional mass must be accelerated and decelerated. Thus (1) […]

AMUNDSON, R.: Evo versus Devo: Methodological Conflicts in the Treatment of Variation Evolutionary and developmental biology were independent enterprises for most of the twentieth century. Differences in goals led to differences and even inconsistencies in methodologies and practices. One of the tasks of an integrative program of evolutionary developmental biology will be to negotiate these […]

EDWARDS, R.: Cultural evolution of scientific values: grant overhead in a parasite-host model. From 1968 to 1992, basic science in the United States experienced an economic condition so pervasive and significant that it was rarely acknowledged to occur. During this period, “grant overhead,” or the requested percent by which a grant budget was increased, was […]

DUDAS, P.L.*; BRAUN, E.J.; PARKER, S.L.; RENFRO, J.L.: Urate Transport by Chick (Gallus gallus) Renal Proximal Tubule Epithelium Birds excrete uric acid (UA) as the major excretory end product of nitrogen metabolism. Others have shown that the renal proximal tubule is the site of UA secretion. In chickens transport of UA across the proximal tubule […]

MCWHORTER, T.J.*; MARTINEZ DEL RIO, C.; PINSHOW, B.: Osmoregulation in avian nectarivores – an integrative approach Nectar-feeding birds must often deal with large ingested water loads in order to meet their energetic demands. We investigated the importance of the integration of digestive and renal function for maintaining water homeostasis in these animals. We compared the […]

PIERMARINI, P.M.*; VERLANDER-REED, J.V.; ROYAUX, I.E.; EVANS, D.H.: Immunochemical Evidence for Pendrin in the Gills of the Euryhaline Atlantic Stingray (Dasyatis sabina): Implications for Ionic and Acid/Base Regulation Pendrin is recognized as an important Cl–/HCO3– exchanger in the mammalian kidney. This transporter has been localized in the apical membrane of B-type intercalated cells, which are […]