MU�OZ-GARCIA, Agust�*; RO, Jennifer; BROWN, Johnnie C.; WILLIAMS, Joseph B.; Ohio State University; Ohio State University; Applied Biosystems; Ohio State University: Sphingolipids in the stratum corneum and their relationship with cutaneous water loss in House sparrows, Passer domesticus, from arid and mesic environments Lipids in the intercellular spaces in the vertebrate stratum corneum (SC), the […]

KLOK, CJ*; KAISER, A; MCKINLEY, B; RASCON , B; HENRY, J; LEE, WK; SOCHA, J; HARRISON, JF; Arizona State University; Midwestern University/ASU; ASU; ASU; ASU; Argonne National Laboratory; Argonne National Laboratory; ASU: Plastic and evolutionary responses of body size and tracheal dimensions to atmospheric oxygen concentration in fruitflies We measured the effect of rearing oxygen […]

BRONIKOWSKI, Anne M.*; BRUNET-ROSSINNI, Anja K.; ARNOLD, Stevan J.; Iowa State University; University of Wisconsin, LaCrosse; Oregon State University: Physiological evolution and aging in garter snakes A primary theory on the evolution of senescence purports that different rates of aging may have evolved as part of a suite of co-evolved life-history traits involving trade-offs in […]

AGUILAR-ROCA, Nancy M.*; MOORE, Francisco B. -G.; SCHLUMBOHM, Jason P.; BENNETT, Albert F.; University of California, Irvine; University of Akron; University of California, Irvine; University of California, Irvine: Methionine biosynthesis limits adaptation to high temperature in Escherichia coli In Escherichia coli, degradation of the first enzyme in the methionine biosynthesis pathway may be a critical […]

TRACY, Christopher R.*; CHRISTIAN, Keith A.; BETTS, Greg; TRACY, C. Richard; Charles Darwin University; Charles Darwin University; Charles Darwin University; University of Nevada Reno: Interactions between water balance, temperature regulation and arboreality in frogs Many amphibians evaporate water freely across their skin. This creates a challenge to thermoregulation: how to simultaneously regulate water and temperature […]

WILLIAMS, J. B.*; OSTROWSKI, S.; Ohio State Univerisity; University of Lyon: Heterothermy of free-living Arabian sand gazelles (Gazella subgutturosa marica) in a desert environment One mechanism, thought to be important in reducing evaporative water loss among large desert ungulates, is heterothermy, the storage of body heat during the day and dissipation of this heat at […]

SIEG, Annette*; O’CONNOR, Michael; Drexel University; Drexel University: Exploring the Possible Radiative Origins of Interspecific Metabolic Allometries The correlation between body size and a large suite of organismal characteristics has been a subject of much interest in the biological community; and, recently, the scaling of metabolic rate with body size has received renewed attention. The […]

HUGHES, Bradley/S. *; CULLUM, Alistair/J.; BENNETT, Albert/F.; University of California, Irvine; Creighton University; University of California, Irvine: Experimental Evolutionary Adaptation to Environmental pH in the bacterium Abstract�The evolutionary responses of organisms to changes in abiotic environmental factors�such as temperature and pH�have been of longstanding interest, because they are naturally variable and can sometimes reach stressful […]

HAYASHI, C.Y.*; SWANSON, B.O.; BLACKLEDGE, T.A.; SUMMERS, A.P.; Univ. of California, Riverside; Pacific University, Oregon; Univ. of Akron, Ohio; Univ. of California, Irvine: Evolution of the Material Properties of Spider Dragline Silk The evolution of biological materials is poorly understood, but is critical for understanding biodiversity. For example, the performance, and hence evolution of spiders […]

WIERSMA, P.*; MUNOZ-GARCIA, A.; WILLIAMS, J.B.; Ohio State Univ.; Ohio State Univ.; Ohio State Univ.: Do basal metabolic rates of tropical birds suggest a low pace of life? The effects of extrinsic factors on life-history trade-offs may result in a slow to fast �pace of life� continuum. Tropical and temperate climates are supposed to generate […]