DEAN, M.N.*; AZIZI, E.; SUMMERS, A.P.; Univ. of California Irvine; Brown University; University of California Irvine: Uniform strain in broad muscles: A new twist on tendons Myofilament overlap determines tension generation in all vertebrate skeletal muscle. The range of muscle fiber strains used to generate a given movement (i.e., sarcomere lengths) is therefore linked to […]

FIELDS, P.A.*; STROTHERS, C.; Franklin and Marshall College, Lancaster, PA; Franklin and Marshall College, Lancaster, PA: Muscle-type lactate dehydrogenase of the Galapagos marine iguana, Amblyrhynchus cristatus, is adapted to high temperature. The Galapagos marine iguana, Amblyrhynchus cristatus, is unique among lizards in diving to forage. Air temperatures often exceed 40�C in the Galapagos; however, because […]

PRICE, E. R.*; GUGLIELMO, C. G.; University of Western Ontario; University of Western Ontario: Fatty Acid Composition of Muscle Phospholipids in Migratory Sparrows Migratory birds undergo numerous physiological changes in preparation for the high intensity endurance exercise associated with migration. The fatty acid composition of muscle membranes, particularly the n-6/to n-3 ratio of poly-unsaturated fatty […]

BATTIPROLU, P.K.; RODNICK, K.J.*; IDAHO STATE UNIV: Evidence for Sex Differences in Glucose-Mediated Cardiac Contractility in Rainbow Trout (Oncorhynchus mykiss) The heart of the rainbow trout is hypoxia-intolerant, may experience variations in oxygen availability and is omnivorous in its preference for metabolic fuels. However, the importance of exogenous glucose, oxygen and sex differences for contractile […]

KINSEY, S.T.*; DA SILVA, M.; PATHI, P.; LOCKE, B.R.; Univ. of North Carolina Wilmington; Florida State University; Florida State University; Florida State University: Diffusion limitation of aerobic metabolism in muscle fibers The net rate of metabolic processes in cells depends on the competition between the catalytic capacity of the system and the diffusive flow of […]

Meeting Abstract 26.5  Jan. 5  Scallops respond to simulated particles in flow SPEISER, D. I.*; SWEENEY, A. M.; JOHNSEN, S; Duke University; Duke University; Duke University dis4@duke.edu Scallops� eyes are abundant in number and positioned along the mantle at the edges of the valves. These eyes can form relatively high-resolution images, and their morphology and optics have […]

Meeting Abstract 26.2  Jan. 5  Repeated evolution of morphology, performance, and behavior in Hispaniolan lizards: a population-level analysis GIFFORD, M.E.*; MAHLER, D.L.; HERREL, A.; Washington University; Harvard University; University of Antwerp gifford@biology2.wustl.edu Variation in habitat characteristics among populations and species is thought to impose different selective pressures on organisms. Among lizard species, the degree of vegetative structure […]

Meeting Abstract 26.1  Jan. 5  Predictors of heart position in snakes GARTNER, G.E.A.*; HICKS, J.W.; MANZANI, P.R.; ANDRADE, D.; GARLAND, T.; Univ. of California, Riverside; Univ. of California, Irvine; Instituto de Biociencias, Rio Claro Brazil; Instituto de Biociencias, Rio Claro Brazil; Univ. of California, Riverside ggart001@ucr.edu Snake cardiovascular systems must resist strong gravitational pressure gradients when assuming […]

Meeting Abstract 26.3  Jan. 5  Ecomorphological diversification among snake populations on the Izu islands VINCENT, S.E.*; HASEGAWA, M.; MORI, A.; Stony Brook University ; Toho University; Kyoto University svincent@ethol.zool.kyoto-u.ac.jp A recent review showed that insular snake body sizes are bimodal in their distribution, with giants evolving on islands with large prey sizes and dwarfs on islands with […]

Meeting Abstract 26.4  Jan. 5  Do morphology and swimming performance predict ecological performance in wild and cultured European sea bass (Dicentrarchus labrax)? HANDELSMAN, C.A.*; NELSON, J.A.; CLAIREAUX, G.; Colorado State University, Fort Collins, CO; Towson University, Towson, MD; Station M�diterran�enne de l�Environnement Littoral, S�te, France Corey.Handelsman@colostate.edu The ecological performance of animals can be considered a component of […]