A single, stepwise origin of ectolecithality in Platyhelminthes

Meeting Abstract 64.5  Friday, Jan. 6  A single, stepwise origin of ectolecithality in Platyhelminthes? LAUMER, C.E.*; GIRIBET, G.; Harvard Museum of Comparative Zoology; Harvard Museum of Comparative Zoology claumer@oeb.harvard.edu Ectolecithality is a process of functionally and (usually) spatially divided oogenesis that effects distinct populations of vitelline cells and nearly-yolkless germ cells. The origin of ectolecithality may have […]

A new Sipuncula classification reassessing and dating the sipunculan phylogeny using a six-gene dataset and fossil taxa

Meeting Abstract 64.2  Friday, Jan. 6  A new Sipuncula classification: reassessing and dating the sipunculan phylogeny using a six-gene dataset and fossil taxa KAWAUCHI, Gisele Y.*; SHARMA, Prashant P.; GIRIBET, Gonzalo; Harvard University, Cambridge; Harvard University, Cambridge; Harvard University, Cambridge gykawa@gmail.com Sipuncula is a protostome phylum of contentious phylogenetic placement and an elusive internal phylogeny. Repeated attempts […]

Social Isolation, Reproductive Physiology and Behavior in Male Zebra Finches

Meeting Abstract 63.2  Friday, Jan. 6  Social Isolation, Reproductive Physiology and Behavior in Male Zebra Finches ERNST, D.F.K.*; BENTLEY, G.E. ; UC Berkeley dfkernst@berkeley.edu Zebra finches are not highly photoperiodic and instead respond to environmental cues such as rainfall, food availability, and social cues to time reproduction. Unlike many photoperiodic species, zebra finches do not exhibit marked […]

In vivo Microdialysis Reveals Dynamics of Estradiol Production in the Avian Hippocampus

Meeting Abstract 63.3  Friday, Jan. 6  In vivo Microdialysis Reveals Dynamics of Estradiol Production in the Avian Hippocampus RENSEL, M.A.*; SALWICZEK, L.; HSIAO, C.F.; XIA, S.; REMAGE-HEALEY, L.; SCHLINGER, B.; Univ. of California, Los Angeles mrensel@gmail.com Steroids act on the brain after their synthesis and secretion by peripheral organs or by their synthesis in the brain itself. […]

Effects of early-onset voluntary exercise on adult physical activity in mice selectively bred for high voluntary wheel running

Meeting Abstract 63.5  Friday, Jan. 6  Effects of early-onset voluntary exercise on adult physical activity in mice selectively bred for high voluntary wheel running ACOSTA, Wendy*; MEEK, Tom H.; SCHUTZ, Heidi; DLUGOSZ, Elizabeth M.; VU, Kim T.; GARLAND, Theodore Jr.; Univ. of California, Riverside; Univ. of California, Riverside; Univ. of California, Riverside; Univ. of California, Riverside; Univ. […]

Androgens and female intrasexual aggression in the sex-role reversed Gulf pipefish

Meeting Abstract 63.1  Friday, Jan. 6  Androgens and female intrasexual aggression in the sex-role reversed Gulf pipefish SCOBELL, Sunny K. *; MACKENZIE, Duncan S.; JAQUES, John T.; JONES, Adam G. ; Department of Biology, Texas A&M University, College Station; Department of Biology, Texas A&M University, College Station; Texas Veterinary Medical Diagnostic Laboratory, Texas A&M University, College Station; […]

Aerobic Physiology, Locomotor Behavior, and Glucocorticoids in California Mice

Meeting Abstract 63.4  Friday, Jan. 6  Aerobic Physiology, Locomotor Behavior, and Glucocorticoids in California Mice DLUGOSZ, E.M.*; HARRIS, B.N.; SALTZMAN, W.; CHAPPELL, M.A.; University of California, Riverside; University of California, Riverside; University of California, Riverside; University of California, Riverside edlug001@ucr.edu California mice (Peromyscus californicus) have high and variable baseline circulating corticosterone (CORT) levels, which may be important […]

Seasonal changes in energy expenditure, corticosterone and behavior in free-living red crossbills, Loxia curvirostra

Meeting Abstract 62.1  Friday, Jan. 6  Seasonal changes in energy expenditure, corticosterone and behavior in free-living red crossbills, Loxia curvirostra CORNELIUS, JM*; HAHN, TP; CHAPPLE, TK; WILKELSKI, M; Max Planck Institute of Ornithology; University of California, Davis; Max Planck Institute of Ornithology; Max Planck Institute of Ornithology cornelius@ucdavis.edu Energy is the currency of life, where a surplus […]

Pre-hibernation saturated fat rich diet in the subtropical mouse-tailed bat (Rhinopoma microphyllum) with relation to hypothalamic NPY and AgRP expression

Meeting Abstract 62.3  Friday, Jan. 6  Pre-hibernation saturated fat rich diet in the subtropical mouse-tailed bat (Rhinopoma microphyllum) with relation to hypothalamic NPY and AgRP expression LEVIN, Eran*; YOM-TOV, Yoram; HEFETZ , Abraham; KRONFELD-SCHOR, Noga; Tel-Aviv University, Department of Zoology; Tel-Aviv University, Department of Zoology; Tel-Aviv University, Department of Zoology; Tel-Aviv University, Department of Zoology levinere@post.tau.ac.il Prior […]

Plasma corticosterone and feather quality in the threatened Florida Scrub-Jay

Meeting Abstract 62.5  Friday, Jan. 6  Plasma corticosterone and feather quality in the threatened Florida Scrub-Jay ELDERBROCK, E.K.*; SMALL, T.W.; SCHOECH, S.J.; University of Memphis; University of Memphis; University of Memphis kldrbrck@memphis.edu Possessing feathers of high quality is important for survival and breeding success. However, because feather growth is energetically expensive, quality may vary with an individual’s […]

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