JOYNER-MATOS, J.L.*; DOWNS, C.A.; JULIAN, D.; Univ. of Florida; EnVirtue Biotechnologies, Inc.; Univ. of Florida: Stress Protein Expression in the Surf Clam Donax variabilis Following Exposure to Normoxia, Hypoxia, Hyperoxia, and Hydrogen Sulfide. The endogenous production of oxygen-centered free radicals and resulting oxidative damage may occur in tissues exposed to hypoxia, hyperoxia, or hydrogen sulfide. […]

SEARS, Michael W; HAYES, Jack P; GELUSO, Keith; O’CONNOR, Candace S; University of Nevada, Reno; University of Nevada, Reno; University if Nevada, Reno; University of Nevada, Reno: Physiological correlates of behavior: does maximal oxygen consumption influence activity in free-ranging deer mice? Physiological performance likely affects behavior, but ecological and evolutionary physiologists know relatively little about […]

STUBBLEFIELD, K.*; ULTSCH, G.R.; SECOR, S.M.; University of Alabama, Tuscaloosa; University of Alabama, Tuscaloosa; University of Alabama, Tuscaloosa: Metabolic and Intestinal Response to Hibernation for the Eastern Garter Snake, Thamnophis s. sirtalis Ectotherms in northern climates hibernate for up to seven months, during which time they do not feed. Considering the selective pressure to reduce […]

SALVANTE, K.G.*; VEZINA, F.; WILLIAMS, T.D.; Simon Fraser Univ., Burnaby, BC, Canada; Royal Netherlands Institute for Sea Research (NIOZ), Den Burg; Simon Fraser Univ., Burnaby, BC, Canada: Is avian egg production really costly? Recent empirical studies have shown that the metabolic cost of egg production in passerine birds includes a 16-27% increase in resting metabolic […]

MARTIN, LB; HOTCHKISS, AK; WEIL, ZM; NELSON, RJ; The Ohio State University; The Ohio State University; The Ohio State University; The Ohio State University: Fitness costs of induced immune activity in Siberian hamsters The vertebrate immune system is costly to use and develop, but the extent to which the induction of immune activity affects fitness […]

SECOR, S.M.*; WHITE, S.E.; University of Alabama, Tuscaloosa; Tidmore Veterinary Hospital, Northport, AL: Effects of exercise, digestion, and body mass on cardiac output and patterns of blood flow for the Burmese python (Python molurus) In considering the tremendous metabolic response exhibited by pythons during meal digestion and the well-known phenomenon of blood shunting to active […]

MCGRAW, K J; KLASING, K C; Arizona State University; University of California-Davis: Dietary carotenoids mediate a trade-off between egg quantity and quality in quail Carotenoids offer animals many nutritional, health, and reproductive benefits. When in high supply, carotenoids can boost antioxidant protection and immune strength as well as stimulate egg production and enrich the color […]

WOJCIECHOWSKI, M; YOSEF, R; PINSHOW, B; Ben-Gurion University of the Negev, Israel; International Birding and Research Centre Eilat, Israel; Ben-Gurion University of the Negev, Israel: Body composition of small migrating birds at a stopover site in southern Israel. To assess changes in body composition with changing body mass during migratory stopover, we scanned over 600 […]

KIDDER, GW*; BALDWIN, J; GOLDSMITH, C; PETERSEN, CW; PRESTON, RL; Mt. Desert Isl. Biol. Lab.; Illinois St. Univ.; Illinois St. Univ.; College of the Atlantic; Illinois St. Univ.: Aerial development in Fundulus heteroclitus embryos Spawning of Fundulus heteroclitus macrolepidotus (the northern subspecies) often occurs at spring high tides; embryos mature in moist air in about […]

FERRY-GRAHAM, LA; GIBB, AC; California State Univ./Moss Landing Marine Labs; Northern Arizona Univ.: The teleost suction-feeding mechanism: How is it modified for specialized foraging behaviors? Ballistic expansion of the head is used by most aquatic predators to produce suction during prey capture. In this study, we seek to determine if the teleost fishes show variable […]