Meeting Abstract 102.4  Tuesday, Jan. 7 08:45  Fractal dimension of landscape features drives activity of terrestrial ectotherms SEARS, MW*; LEVY, O; ANGILLETTA, MJ; Clemson Univ.; Arizona St. Univ.; Arizona St. Univ. sears3@clemson.edu Understanding the ecological responses to global climate change represents one of the greatest challenges of the 21st century. To forecast these responses, we must develop […]

Meeting Abstract 102.5  Tuesday, Jan. 7 09:00  Does Burrow Temperature Constrain Antipredator Behavior in Juvenile Gopher Tortoises? RADZIO, T.A.*; O’CONNOR, M.P.; Drexel University; Drexel University tar55@drexel.edu Ectotherms may experience a tradeoff between predator avoidance and thermoregulation, particularly when refuge temperatures are physiologically suboptimal. Theory predicts that ectothermic prey will adjust hiding times following unsuccessful attacks to optimize […]

Meeting Abstract 102.6  Tuesday, Jan. 7 09:15  Beyond lethality—use of thermal resources under the perceived risk of predation RUSCH, T/W*; SEARS, M/W; RAY, G/F; MERLINO, T/L; ANGILLETTA, M/J; Arizona State University, Tempe, AZ; Clemson University, Clemson, SC; Arizona State University, Tempe, AZ; Franklin & Marshall College, Lancaster, PA; Arizona State University, Tempe, AZ trusch@asu.edu When resources become […]

Meeting Abstract 102.1  Tuesday, Jan. 7 08:00  Avoiding Errors When Measuring Operative Temperature BAKKEN, G.S.*; KROCHMAL, A.R.; ANGILLETTA, M.J.; Indiana State University; Washington College; Arizona State University george.bakken@indstate.edu Climate change may increase average air temperatures by 2 – 4° C by 2100. To predict the resulting shifts in life histories and species’ ranges, we need to reliably […]

Meeting Abstract 102.1  Wednesday, Jan. 7 08:00  Trans-seasonal activation of brain GnRH: Mechanisms underlying temperature-induced reproduction. LUTTERSCHMIDT, D.I.*; LUCAS, A.R.; Portland State University d.lutterschmidt@pdx.edu All animals use environmental cues to accurately time life-history events. How the brain decodes information about the environment to produce adaptive changes in physiology and behavior, however, is poorly understood. We asked if […]

Meeting Abstract 102.3  Wednesday, Jan. 7 08:30  Timing mechanisms in a songbird: comparing hormones and gene expression in sping in migrant and resident populations held in a common garden FUDICKAR, A.M.*; GRIEVES, T; KETTERSON, E; Indiana University; North Dakota State University; Indiana University afudickar@gmail.com When migratory and sedentary populations co-occur, they experience the same biotic and abiotic […]

Meeting Abstract 102.2  Wednesday, Jan. 7 08:15  The effects of thyroid replacement on pre-alternate molt, migration and reproduction in the White-crowned Sparrow (Z. Leucophrys gambelli) PEREZ, JH*; WINGFIELD, JC; RAMENOFSKY, M; Univ. of California, Davis; Univ. of California, Davis; Univ. of California, Davis jhperez@ucdavis.edu The photoinduction of breeding and migratory behavior in songbirds has been a subject […]

Meeting Abstract 102.8  Wednesday, Jan. 7 09:45  Reducing plumage reflectance causes changes in dominance and corticosterone TRINGALI, A*; BOUGHTON, R; BOWMAN, R.K.; WINDSOR, R; Archbold Biological Station angela.tringali@gmail.com Ornamental traits remain honest indicators of fitness if there is a direct cost to producing or maintaining the trait or if a tradeoff between ornamentation and other physiological processes […]

Meeting Abstract 102.4  Wednesday, Jan. 7 08:45  Is testosterone required for a timely departure from the wintering grounds for a long-distance migrant? NEMETH, Z*; GRAVES, E; RAMENOFSKY, M; University of Debrecen, Hungary ; University of California, Davis; University of California, Davis mramenofs@ucdavis.edu Testosterone is thought to play a major role in the physiology and behavior of spring […]

Meeting Abstract 102.6  Wednesday, Jan. 7 09:15  Divorce in a socially monogamous bird: hormonal mechanisms and reproductive consequences CRINO, O.L.*; HURLEY, L.L; MAINWARING, M.C.; DUVALL, C.; BUCHANAN, K.L.; GRIFFITH, S.C.; Macquarie University; Macquarie University; Lancaster University; Macquarie University; Deakin University; Macquarie University ondicrino@gmail.com http://ondicrino.com Zebra finches (Taeniopygia guttata) form long term pairs, within which both sexes contribute […]