Meeting Abstract 30.5 Monday, Jan. 5 Evidence for a trade-off between immunity and reproduction in the pregnant Siberian hamster? CHESTER, E.M.*; FRENCH, S.S.; DEMAS, G.E.; Indiana University, Bloomington; Indiana University, Bloomington; Indiana University, Bloomington emcheste@indiana.edu One assumption in life-history theory is that resources available for competing life functions (i.e., growth, reproduction and somatic maintenance) are limited, and […]
year: 2009
Consequences of immunosenescence in the wild A field experiment in tree swallows
Meeting Abstract 30.2 Monday, Jan. 5 Consequences of immunosenescence in the wild: A field experiment in tree swallows PALACIOS, M.G.*; WINKLER, D.W.; VLECK, C.M.; Iowa State University, Ames ; Cornell University, Ithaca, NY; Iowa State University, Ames mgp@iastate.edu Aging is a pervasive phenomenon in free-living organisms, but its consequences in the wild are remarkably understudied. We previously […]
Bottlenecks, budgets and immunity the possibility of immune strategies in long distance migrant birds
Meeting Abstract 30.4 Monday, Jan. 5 Bottlenecks, budgets and immunity: the possibility of immune strategies in long distance migrant birds BUEHLER, D. M*; TIELEMAN, B. I.; PIERSMA, T.; Univ. of Groningen; Univ. of Groningen; Univ. of Groningen; Royal Netherlands Insitute for Sea Research d.m.buehler@rug.nl How do migrating birds deal with disease threats and allocate resources needed for […]
Why Are There no Giant Teleosts
Meeting Abstract 29.1 Monday, Jan. 5 Why Are There no Giant Teleosts? LANDRY, S.O,; State Univ. of New York, Binghamton slandry@binghamton.edu Why are there no giant teleosts? Every other vertebrate clade that has entered the ocean has produced giant forms (chondrichthyans, placodermii, reptiles, mammals), Defining a giant as above 30 feet (10 meters) and one tonne, no […]
Seasonal differences in aromatase (cyp19) mRNA expression in the brain of the free-living male song sparrow, Melospiza melodia morphna
Meeting Abstract 29.2 Monday, Jan. 5 Seasonal differences in aromatase (cyp19) mRNA expression in the brain of the free-living male song sparrow, Melospiza melodia morphna WACKER, D.W.*; WINGFIELD, J.C.; DAVIS, J.E.; MEDDLE, S.L.; University of Edinburgh; University of California, Davis; Radford University; University of Edinburgh dwacker@staffmail.ed.ac.uk Male song sparrows go through three annual life history stages. In […]
Photic and non-photic regulation of GnRH-I in male European Starlings (Sturnus vulgaris)
Meeting Abstract 29.3 Monday, Jan. 5 Photic and non-photic regulation of GnRH-I in male European Starlings (Sturnus vulgaris). STEVENSON, T/J*; BERNARD, D/J; BALL, G/F; Johns Hopkins University; McGill University; Johns Hopkins University tsteve13@jhu.edu In many temperate zone avian species, the vernal increase in photoperiod is the initial predictive cue that triggers a cascade of events leading to […]
Graded inhibition of reproductive physiology by short photoperiod and aging outcomes in female Siberian hamsters, Phodopus sungorus
Meeting Abstract 29.5 Monday, Jan. 5 Graded inhibition of reproductive physiology by short photoperiod and aging outcomes in female Siberian hamsters, Phodopus sungorus PLACE, Ned J; Cornell University njp27@cornell.edu Reproductive aging has been shown to be decelerated in female Siberian hamsters raised in short days (SD), and delayed puberty induced by SD rearing was thought to be […]
Endocrine mechanisms mediating temperature-induced reproductive behavior in garter snakes (Thamnophis sirtalis)
Meeting Abstract 29.4 Monday, Jan. 5 Endocrine mechanisms mediating temperature-induced reproductive behavior in garter snakes (Thamnophis sirtalis). LUTTERSCHMIDT, D.I.*; MASON, R.T.; Georgia State University, Atlanta; Oregon State University, Corvallis lutterschmidt@gsu.edu In many hibernating ectotherms, photoperiod cues likely have little or no influence on the initiation of spring reproductive behavior. Rather, temperature may be the most important environmental […]
A springtime KiSS Uncovering a role for the neuropeptide kisspeptin in seasonal reproduction
Meeting Abstract 29.6 Monday, Jan. 5 A springtime KiSS?: Uncovering a role for the neuropeptide kisspeptin in seasonal reproduction GREIVES, Timothy J*; KRIEGSFELD, Lance J; DEMAS, Gregory E; Department of Biology and Center for Integrative Study of Animal Behavior, Indiana University, Bloomington, 47405, USA; Department of Psychology and Helen Wills Neuroscience Institute, University of California, Berkeley, 94720, […]
Vicariance or pseudocongruence Evidence from a multi-species break in the northeastern Pacific
Meeting Abstract 28.1 Monday, Jan. 5 Vicariance or pseudocongruence? Evidence from a multi-species break in the northeastern Pacific MCGOVERN, TM*; KEEVER, CC; HART, MW; SASKI, CA; COX, LN; EMME, SA; HOFFMAN, JM; MARKO, PB; Clemson Univ.; Simon Fraser Univ.; Simon Fraser Univ.; Clemson Univ.; Clemson Univ.; Clemson Univ.; Clemson Univ.; Clemson Univ. tmcgove@clemson.edu Comparative phylogeography often reveals […]