Meeting Abstract 89.4 Sunday, Jan. 6 Assessing the evidence for the evolution of asymmetrical gaits in Crocodylomorpha HUTCHINSON, JR; The Royal Veterinary College, Structure and Motion Laboratory jrhutch@rvc.ac.uk Some Crocodylia use asymmetrical gaits, including bounding and galloping, at near-maximal speeds. This ability is commonly assumed to have evolved in stem Crocodylomorpha, related to changes in limb/axial morphology. […]
sessions: Session 89
The comparative environmental and evolutionary endocrinology of black (Centropus grillii) and white-browed coucals (C superciliosus), two sympatric birds differing in mate competition and parental care patterns
Meeting Abstract 89.3 Monday, Jan. 6 14:00 The comparative environmental and evolutionary endocrinology of black (Centropus grillii) and white-browed coucals (C. superciliosus), two sympatric birds differing in mate competition and parental care patterns GOYMANN, W.; MPI fuer Ornithologie, Seewiesen wolfgang@goymann.org John Wingfield’s contributions to environmental endocrinology have been crucial for the ongoing success of this lively field […]
Learned anti-predator behavior is impaired by exogenous corticosterone in free-living Florida scrub-jays (Aphelocoma coerulescens)
Meeting Abstract 89.4 Monday, Jan. 6 14:15 Learned anti-predator behavior is impaired by exogenous corticosterone in free-living Florida scrub-jays (Aphelocoma coerulescens). JONES, BC*; BEBUS, S; SCHOECH, SJ; Univ. of Memphis; Univ. of Memphis; Univ. of Memphis bcjones8@memphis.edu Appropriate responses to predators are learned for many avian species. However, few studies have explored the underlying mechanisms that mediate […]
Hormones and parental care in fishes
Meeting Abstract 89.8 Monday, Jan. 6 15:15 Hormones and parental care in fishes KNAPP, R.*; CURETON II, J.C.; BROUGHTON, R.E.; Univ. of Oklahoma; Univ. of Oklahoma; Univ. of Oklahoma rknapp@ou.edu Although John Wingfield is best known for his groundbreaking work in avian environmental endocrinology, for his dissertation research he examined seasonal changes of steroid hormones in a […]
Exactly when do female birds make their ‘timing of breeding’ decision, and what cues do they use
Meeting Abstract 89.5 Monday, Jan. 6 14:30 Exactly when do female birds make their ‘timing of breeding’ decision, and what cues do they use? WILLIAMS, TD; Simon Fraser Uni., Burnaby tdwillia@sfu.ca Current models for control of timing of breeding suggest that day length provides reliable ‘initial predictive information’ for seasonal breeding but that non-photoperiodic ‘supplemental factors’ (temperature, […]
Effects of age on selectivity for dominant males in female golden Syrian hamsters
Meeting Abstract 89.7 Monday, Jan. 6 15:00 Effects of age on selectivity for dominant males in female golden Syrian hamsters PLACE, N.J.*; JOHNSTON, R.E.; Cornell University njp27@cornell.edu Under most circumstances life history theory predicts that old females should be less selective in choosing a mate than young females. Relatively few studies have investigated this concept experimentally, and […]
Different Lab Environments Are Not the Same Animal Aspects of Zebra Finch Stress Physiology Depend on Captive Housing Environment
Meeting Abstract 89.6 Monday, Jan. 6 14:45 Different Lab Environments Are Not the Same Animal: Aspects of Zebra Finch Stress Physiology Depend on Captive Housing Environment CALISI, RM*; DICKENS, MJ; ERNST, DK; BENTLEY, GE; Univ, of California, Berkeley; Univ, of California, Berkeley; Univ, of California, Berkeley; Univ, of California, Berkeley beccacalisi@gmail.com John Wingfield revolutionized the field of […]
Changes in glucocorticoid and mineralocorticoid receptor mRNA expression during the short arctic breeding season in a free living wild song bird the Gambel’s White-crowned Sparrow
Meeting Abstract 89.2 Monday, Jan. 6 13:45 Changes in glucocorticoid and mineralocorticoid receptor mRNA expression during the short arctic breeding season in a free living wild song bird the Gambel’s White-crowned Sparrow KRAUSE, JS*; MCGUIGAN , MA; WINGFIELD, JC; MEDDLE, SL; Univ. of California, Davis; Univ. of California, Davis; Univ. of California, Davis; Univ. of Edinburgh jskrause@ucdavis.edu […]
Acute and persistent social challenges elicit widespread shifts in peripheral gene expression without a systemic rise in testosterone
Meeting Abstract 89.1 Monday, Jan. 6 13:30 Acute and persistent social challenges elicit widespread shifts in peripheral gene expression without a systemic rise in testosterone ROSVALL, KA*; PETERSON, MP; BUECHLEIN, A; TANG, H; RUSCH, D; KETTERSON, ED; Indiana Univ.; Indiana Univ.; Indiana Univ.; Indiana Univ.; Indiana Univ.; Indiana Univ. krosvall@indiana.edu The challenge hypothesis predicts that testosterone (T) […]
Species identity and life-history explain chemical defense complexity in North American fireflies
Meeting Abstract 89.1 Tuesday, Jan. 6 13:30 Species identity and life-history explain chemical defense complexity in North American fireflies MARION, ZH*; CAMPANGA, SR; TESTER, A; FORDYCE, JA; FITZPATRICK, BM; Univ. of Tennessee, Knoxville; Univ. of Tennessee, Knoxville; Univ. of Tennessee, Knoxville; Univ. of Tennessee, Knoxville; Univ. of Tennessee, Knoxville zmarion@utk.edu Fireflies (Coleoptera: Lampyridae) are a diverse family […]
