Meeting Abstract 50.6  Saturday, Jan. 5  Flight biomechanics in the wild: Environmental turbulence and rolling instablities in foraging orchid bees COMBES, S.A.*; PALEN, W.J.; DUDLEY, R.; Harvard University; Simon Fraser University; U.C. Berkeley scombes@oeb.harvard.edu Tropical orchid bees cover vast distances at high flight speeds, foraging for scattered resources. Although this long-distance foraging is central to feeding, mating […]

Meeting Abstract 50.4  Saturday, Jan. 5  Biomechanics and Visual Ecology of Directed Aerial Descent in Larval Stick Insects ZENG, Y.*; DANIEL, T.; DUDLEY, R.; Univ. of California, Berkeley; Univ. of Washington; Uni. of California, Berkeley dreamoniz@gmail.com Recent work has shown that many tropical ants falling from trees can direct their paths to return to the tree trunk, […]

Meeting Abstract 50.1  Saturday, Jan. 5  3D Kinematics of the Dorsal Fins in Spiny Dogfish during Steady Swimming MAIA, A.*; WILGA, C.D.; Univ. of Rhode Island, Kingston; Univ. of Rhode Island, Kingston amaia@mail.uri.edu The dorsal fin in actinopterygians has been shown to function as a stabilizer in some species and as a propulsive element that augments the […]

Meeting Abstract 50.5  Saturday, Jan. 5  3-D flight trajectories vary with light level in the nocturnal sweat bee, Megalopta THEOBALD, J C*; COATES, M C; WARRANT, E J; WCISLO, W T; Univ. of California, Los Angeles; Lund University, Sweden; Lund University, Sweden; Smithsonian Tropical Research Institute, Panama jamiet@physci.ucla.edu We examined how light limits the sweat bee Megalopta‘s […]

Meeting Abstract 50.2  Monday, Jan. 5  Using stable isotopes to track tissue catabolism during hibernation in an extreme arctic hibernator, Spermophilus parryii LEE, Trixie N.*; BUCK, C. Loren; BARNES, Brian M.; O’BRIEN, Diane M.; Univ. of Alaska, Fairbanks; Univ. of Alaska, Anchorage; Univ. of Alaska, Fairbanks; Univ. of Alaska, Fairbanks fttnl@uaf.edu Arctic ground squirrels (Spermophilus parryii) are […]

Meeting Abstract 50.1  Monday, Jan. 5  Supercool social wasps: lower lethal limits to cold tolerance CORRIGAN, S.T.*; IRWIN, J.; Central Wash. Univ. corrigas@gmail.com Of the selective pressures that have shaped species evolutionary success or failure, the most universal abiotic factor, is probably temperature. In the higher latitudes the ability to survive cold temperatures may be the limiting […]

Meeting Abstract 50.4  Monday, Jan. 5  Skeletal muscle energetics following cold acclimation in a brown adipose tissue deficient mouse. MINEO, PM*; ROBERTS, ME; SCHAEFFER, PJ; Miami University; Miami University; Miami University mineopm@muohio.edu We are interested in muscle plasticity in response to cold challenge. To remove the influence of brown adipose tissue (BAT) and non-shivering thermogenesis, we use […]

Meeting Abstract 50.3  Monday, Jan. 5  Simultaneous freeze tolerance and avoidance in individual fungus gnats, Exechia nugatoria SFORMO, T*; KOHL, F; MCINTYRE, J; KERR, P; DUMAN, J; BARNES, B; Univ. Alaska Fairbanks; Univ. Alaska Fairbanks; Univ. Alaska Fairbanks; California Department of Food and Agriculture; Univ. of Notre Dame; Univ. Alaska Fairbanks rfts@uaf.edu Freeze tolerance and freeze avoidance […]

Meeting Abstract 50.6  Monday, Jan. 5  Physiological and behavioral responses of molting house sparrows to protein stress BURNS, Darren J*; BAUCHINGER, Ulf; MUKHERJEE, Shomen; PINSHOW, Berry; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev darrenjo@bgu.ac.il Birds use both physiological and behavioral mechanisms to gain and conserve protein when they molt. […]

Meeting Abstract 50.5  Monday, Jan. 5  Expression and phosphorylation of AMPK and ACC in fed and fasted golden-mantled ground squirrels (GMGS) HEALY, Jessica E*; DIAZ, Yvonne; FLORANT, Gregory L; Colorado State University; New Mexico State University; Colorado State University jehealy@simla.colostate.edu The golden-mantled ground squirrel (GMGS) is a mammal that hibernates (hibernator) and has a robust annual cycle […]