Meeting Abstract 104.3  Sunday, Jan. 6  The effects of day length, hibernation, and hibernaculum temperature on tooth morphology in the Turkish hamster (Mesocricetus brandti) BATAVIA, M; University of California, Berkeley mbatavia@berkeley.edu Ever-growing rodent incisors deposit dentin – one of the tissues comprising mammalian teeth – on a circadian basis; these daily dentin layers are visible both in […]

Meeting Abstract 104.5  Sunday, Jan. 6  Phenotype manipulations confirm the role of pectoral muscles in avian thermogenic capacity PETIT, M.*; VEZINA, F.; Université du Québec à Rimouski, Groupe de recherche sur les environnements nordiques BOREAS, Centre for Northern Studies, Québec Centre for Biodiversity Science; Université du Québec à Rimouski, Groupe de recherche sur les environnements nordiques BOREAS, […]

Meeting Abstract 104.1  Sunday, Jan. 6  Hibernation at Extremes: How low can you go? RICHTER, M.M.*; LEE, T.N.; TOIEN, O; BARNES, B.M.; BUCK, C.L.; Univ. of Alaska, Fairbanks; Univ. of Alaska, Fairbanks; Univ. of Alaska, Fairbanks; Univ. of Alaska, Fairbanks; Univ. of Alaska, Anchorage mmrichter@alaska.edu During hibernation, soil temperatures adjacent to hibernacula (Ta) average a low of […]

Meeting Abstract 104.2  Sunday, Jan. 6  Circadian rhythms in free-living arctic ground squirrels. BARNES, B.M.*; WILLIAMS, C.T.; BUCK, C.L.; Univ. of Alaska Fairbanks; Univ. of Alaska Anchorage; Univ. of Alaska Anchorage bmbarnes@alaska.edu In indigenous arctic reindeer and ptarmigan, circadian rhythms are not expressed during the constant light of summer or constant dark of winter, and it has […]

Meeting Abstract 103.2  Sunday, Jan. 6  The function of shell wiping in the marine snail Calliostoma ligatum IYENGAR, E.V.; Muhlenberg College iyengar@muhlenberg.edu Individuals of the marine snail Calliostoma ligatum, similar to other congeners, are unusual in that they can extend their foot over the apex of their shells and use the back of the foot to wipe […]

Meeting Abstract 103.4  Sunday, Jan. 6  The evolution of cellular generalization and specialization in natural populations of Drosophila melanogaster COOPER, B.S.*; HAMMAD, L.A.; MONTOOTH, K.L.; Indiana University; Indiana University; Indiana University brascoop@indiana.edu Changes in the environment can profoundly impact the fluidity of cell membranes. For small insects like Drosophila melanogaster, both changes in temperature and amounts of […]

Meeting Abstract 103.6  Sunday, Jan. 6  Plasticity of a complex, integrated structure: The impact of diet on mandibular form ZELDITCH, M. L.*; SWIDERSKI, D. L.; Univ. of Michigan, Ann Arbor; Univ. of Michigan, Ann Arbor zelditch@umich.edu Plasticity may play a critical role in the persistence of populations threatened by climate change and even populations that track their […]

Meeting Abstract 103.5  Sunday, Jan. 6  Mechanisms of hemoglobin adaptation in high-altitude vertebrates: insights from protein engineering STORZ, J. F.*; NATARAJAN, C.; PROJECTO-GARCIA, J.; MORIYAMA, H.; WEBER, R. E.; FAGO, A.; Univ. of Nebraska, Lincoln, NE; Univ. of Nebraska, Lincoln, NE; Univ. of Nebraska, Lincoln, NE; Univ. of Nebraska, Lincoln, NE; Aarhus Univ., Aarhus, Denmark; Aarhus Univ., […]

Meeting Abstract 103.1  Sunday, Jan. 6  Handedness and predation success in the stone crab Menippe mercenaria-adina WHITENACK, LB*; HERBERT, GH; BERT, T; Allegheny College; Univ. of South Florida; Florida Fish and Wildlife Conservation Commission lwhitena@allegheny.edu The stone crab Menippe mercenaria possesses dimorphic claws, typically with a large, molar-tooth bearing, right crusher claw for breaking shelled prey and […]

Meeting Abstract 103.3  Sunday, Jan. 6  Gut Instinct: Digestive Capacity and the Evolution of Extreme Carnivory in Marine Mammals WILLIAMS, T.M.*; LINDBERG, D.R.; Univ. of California, Santa Cruz; Univ. of California, Berkeley williams@biology.ucsc.edu Reinvasion of the oceans by mammalian predators 30-50 MYA required fundamental changes in physiological processes and organs originally intended for terrestrial living. Such changes […]