Meeting Abstract 46.5  Jan. 6  Song culture affects noradrenergic activity in the auditory telencephalon of female starlings SALVANTE, K.G.*; SOCKMAN, K.W.; Univ. North Carolina, Chapel Hill; Univ. North Carolina, Chapel Hill ksalvante@unc.edu In some songbird species, the spectro-temporal properties of a male’s song may reflect his quality and hence suitability as a prospective mate. Thus, females make […]

Meeting Abstract 46.2  Jan. 6  Does Testosterone Mediate Parental Care in Female Dark-eyed Juncos? O’NEAL, D.M.*; REICHARD, D.G.; PAVLIS, K; KETTERSON, E.D.; Indiana University, Bloomington; Saint Mary’s College of Maryland; University of Guelph; Indiana University, Bloomington daoneal@indiana.edu Hormonal manipulations allow us to create novel phenotypes in order to learn how existing phenotypes evolve and why they persist. […]

Meeting Abstract 46.3  Jan. 6  A comparative study of migratory behavior in white-crowned sparrows (Zonotrichia leucophrys) COVERDILL, A.J.*; CLARK, A.D.; RAMENOFSKY, M.; University of Washington; University of Washington; University of Washington alexac@u.washington.edu Expression of migratory restlessness (MR) in captive birds has been considered a characteristic of migratory species. Paradoxically however, a few resident species also express MR. […]

Meeting Abstract 45.3  Jan. 6  Signal timing by the gray treefrog, Hyla chrysoscelis: responses to conspecific and heterospecific advertisement calls MARSHALL, Vincent T.*; GERHARDT, H. Carl; University of Illinois; University of Missouri marshallvt@life.uiuc.edu Breeding aggregations of acoustically signaling animals often comprise multiple species sharing a common communication channel. Whether and how an individual adjusts the timing of […]

Meeting Abstract 45.4  Jan. 6  Sexual Behavior, Intraspecific Signaling and the Evolution of Mimicry among Closely Related Species ESTRADA, C.**; JIGGINS, C.D.; GILBERT, L.E.; Univ. of Texas, Austin; Univ. of Edinburgh; Univ. of Texas, Austin estradac@mail.utexas.edu Species that enjoy some measure of protection from predators due to their aggressive behavior or toxicity often exhibit warning colorations. When […]

Meeting Abstract 45.2  Jan. 6  Geographic variation in the advertisement call of Hyla arenicolor GERHARDT, H. C.; HUMFELD, S. C.*; MARSHALL, V. T.; University of Missouri-Columbia; University of Missouri-Columbia; University of Illinois humfelds@missouri.edu The canyon treefrog, Hyla arenicolor, is a cryptically colored treefrog that inhabits rocky canyons throughout the southwestern United States and Mexico. Although populations occur […]

Meeting Abstract 45.5  Jan. 6  Frequency of Rattle Use by Free-ranging Western Diamondback Rattlesnakes PLACE, AJ; Northwestern Oklahoma State University ajplace@nwosu.edu The rattle system of rattlesnakes (Genera Crotalus and Sistrurus) is an adaptive suite of morphological, physiological, and behavioral characters. Previous studies have addressed the morphology and physiology of the rattle system. While previous studies have addressed […]

Meeting Abstract 45.1  Jan. 6  Evolution and function of communication signals in Apteronotus KOLODZIEJSKI, Johanna A.*; SMITH, G.T.; Indiana Univ; Indiana Univ hkolodzi@indiana.edu Within the electric fish genus Apteronotus, communication signals known as �chirps� are produced by modulating the frequency and amplitude of an otherwise constant-frequency electric organ discharge (EOD). The number and structure of chirps vary […]

Meeting Abstract 45.6  Jan. 6  Energy and predation costs of firefly courtship signals WOODS, W. A. Jr.*; HENDRICKSON, H.; MASON, J.; LEWIS, S. M.; Tufts University; Tufts University; Tufts University; Tufts University william.woods@tufts.edu A courtship signal may impose more than one cost, and despite the acknowledged theoretical importance of these multiple costs, little is known about their […]

Meeting Abstract 44.10  Jan. 6  Vitellogenin induction by commercial fish food: possible implications in endocrine disruptor studies DAVIS, L.K.; HIRANO, T.; GRAU, E.G.*; Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe lkdavis@hawaii.edu In a number of teleost fish, male plasma has been found to contain substantial levels of 17&beta-estradiol (E2) and in certain cases, vitellogenin (Vg), […]