Meeting Abstract 44.5 Saturday, Jan. 5 Survival at what cost?: Consequences of a native lizard’s adaptations to invasive fire ants THAWLEY, C.J.*; ROBBINS, T.R.; LANGKILDE, T.; Pennsylvania State University; Pennsylvania State University; Pennsylvania State University cjt171@psu.edu Anthropogenic environmental change, including introductions of non-native species, imposes novel selective pressures on native species. A population’s ability to persist under […]
sessions: Session 44
Phenology of hibernation and reproduction in free-living arctic ground squirrels
Meeting Abstract 44.3 Saturday, Jan. 5 Phenology of hibernation and reproduction in free-living arctic ground squirrels WILLIAMS, CT*; SHERIFF, MJ; BARNES, BM; BUCK, CL; University of Alaska Anchorage; University of Alaska Fairbanks; University of Alaska Fairbanks; University of Alaska Anchorage ctwilliams07@yahoo.ca Climate warming is predicted to lengthen the growing season, particularly at high latitudes, which provides increased […]
Does corticosterone deposited in feathers in autumn predict circulating corticosterone during breeding
Meeting Abstract 44.2 Saturday, Jan. 5 Does corticosterone deposited in feathers in autumn predict circulating corticosterone during breeding? HANAUER, RE*; KETTERSON, ED; Indiana University; Indiana University rhanauer@indiana.edu The adrenal steroid hormone corticosterone (CORT) is involved in the regulation of energy balance, behavior, and stress responses. Individuals differ in the degree to which they elevate CORT in response […]
Dietary effects on enzymatic immunity of migrating Mormon crickets
Meeting Abstract 44.1 Saturday, Jan. 5 Dietary effects on enzymatic immunity of migrating Mormon crickets SRYGLEY, R.B.*; USDA-Agricultural Research Service robert.srygley@ars.usda.gov Migration is often associated with movement away from scarce nutrients or other resources, and yet migration itself is energetically demanding. Migrating Mormon crickets lack nutrients, and supplementation of deficient nutrients slows migratory movements and enhances specific […]
Nestling growth rate and juvenile survival
Meeting Abstract 44.3 Sunday, Jan. 5 11:00 Nestling growth rate and juvenile survival MANESS, TJ*; ANDERSON, DJ; Louisiana Tech University; Wake Forest University tmaness@latech.edu The survival probability of birds during the juvenile period, between the end of parental care and adulthood, is highly variable and has a major effect on population dynamics and parental fitness. As such, […]
Individual variation in provisioning effort does not result in larger offspring at fledging
Meeting Abstract 44.2 Sunday, Jan. 5 10:45 Individual variation in provisioning effort does not result in larger offspring at fledging FOWLER, MA*; WILLIAMS, TD; Simon Fraser University; Simon Fraser University melinda.a.f@gmail.com Parents that work harder at raising young should obtain fitness benefits but, theoretically, these benefits should come at some ‘cost of reproduction’. However, the predicted positive […]
Gestational weight gain influences sex ratios at birth in humans
Meeting Abstract 44.1 Sunday, Jan. 5 10:30 Gestational weight gain influences sex ratios at birth in humans NAVARA, KJ; Univ. of Georgia knavara@uga.edu Previous studies in birds and non-human mammals suggest that females bias the sex ratios of offspring in response to resource limitations. In addition, a previous study in humans indicated that women with high levels […]
Energetic and Metabolic Consequences of Fatherhood in the Biparental California Mouse (Peromyscus californicus)
Meeting Abstract 44.5 Sunday, Jan. 5 11:30 Energetic and Metabolic Consequences of Fatherhood in the Biparental California Mouse (Peromyscus californicus) ANDREW, J.R.*; GARLAND, T. JR.; CHAPPELL, M.A.; SALTZMAN, W.; University of California, Riverside; University of California, Riverside; University of California, Riverside; University of California, Riverside jandr010@ucr.edu Although the effects of motherhood on mothers’ health have been well […]
Momentum as a possible mechanism for locomotor stability
Meeting Abstract 44.6 Monday, Jan. 5 11:15 Momentum as a possible mechanism for locomotor stability PFEIFFENBERGER, JA*; HSIEH, ST; Temple Univeristy; Temple University jpfeiffe@temple.edu http://pfeiffenberger.weebly.com The Atlantic ghost crab is found on sandy beaches, which are naturally-complex environments. Not only will sand shift and flow in response to the intrusion of leg, fragments of shells and rocks […]
How Kangaroo Rats Achieve Speed Increases over Uneven Terrain
Meeting Abstract 44.5 Monday, Jan. 5 11:30 How Kangaroo Rats Achieve Speed Increases over Uneven Terrain COLE, K.*; MCGOWAN, C.P.; Univ. of Idaho; Univ. of Idaho cole2839@vandals.uidaho.edu The natural terrain of kangaroo rats is mainly comprised of sparse scrub across uneven desert hills. It is thought that these animals hop from scrub to scrub, requiring the ability […]
