O’CONNOR, M. P.; Drexel University, Philadelphia, PA: Convective heat exchanges for terrestrial ectotherms near the ground. For terrestrial ectotherms, thermal energy balances play a critical role in constraining physiology, behavior, and ecology. For many of those ectotherms, their heat balances can be approximated as a balance between radiative and convective heat exchanges. Previous studies have […]

COSTANZO, JP; BAKER, PJ*; IVERSON, JB; LEE JR, RE; Miami Universtiy; Miami Universtiy; Earlham College; Miami Universtiy: Comparative aspects of terrestrial hibernation in hatchling red-eared sliders (Trachemys scripta) and painted turtles (Chrysemys picta) in a cold environment. We investigated overwintering habits and cold hardiness of hatchling of the red-eared slider (Trachemys scripta) near the northern […]

SWANSON, DL; LIKNES, ET; Univ. of South Dakota; Univ. of South Dakota: An interspecific analysis of cold tolerance and summit metabolic rate in small birds Small birds showing marked seasonal changes in cold tolerance also exhibit winter increases in summit metabolic rate (Msum = maximum cold-induced thermogenesis) relative to summer birds. However, some birds show […]

KELLY, Scott A.; TOMASI, Thomas E.; University of California, Riverside; Southwest Missouri State University: Ambient Temperature Effects on Metabolism and Body Composition in Torpid Bats (Myotis lucifugus and Pipistrellus subflavus) Recent declines in Indiana bat (Myotis sodalis) populations have been well documented but unexplained. It is unclear if declines are caused by exposure to and […]

PACKARD, M.J.*; PACKARD, G.C.; Colo. State Univ.; Colo. State Univ.: Accumulation of Lactate and Glucose During Freezing of Hatchling Painted Turtles ( Chrysemys picta) Hatchling painted turtles survived freezing at -2 &deg C for 4 days, but few animals recovered from freezing lasting 6 days, and no turtle survived being frozen for 8 days. Whole […]

BLEAKLEY, BH; MARTELL, CM; BRODIE III, ED; Indiana University; Indiana University; Indiana University: Variation in antipredator behavior in three strains of inbred fancy guppies, Poecilia reticulata. Common guppies, Poecilia reticulata, react to the presence of potential predators in the wild with a characteristic inspection behavior that appears to transmit information about the threat to the […]

BARIMO, JF; WALSH, PJ; Univ of Miami, Miami; Univ of Miami, Miami: Ureotely in the gulf toadfish, Opsanus beta: A means of predator avoidance by chemical crypsis? Studies of prey detection by olfaction in teleost fishes have focused largely on amino acids as odorants while studies with respect to nitrogenous waste appear few in comparison. […]

JOHNSEN, S.; Duke University: The red and the black: Bioluminescence and the color of animals in the deep sea Unlike terrestrial and near-shore species, the coloration of deep-sea animals is quite uniform among species, families, and even phyla. The colors of these species are generally assumed to be cryptic, but it is not known how […]

WELTER, S. M.*; KOLLIKER, M.; BRODIE III, E. D.; Coastal Carolina Univ.; Indiana Univ.; Indiana Univ.: The effect of heterogeneity of the developmental environment on phenotypic plasticity of pigmentation in larval two-lined salamanders (Eurycea bislineata) Variation in developmental environment may differentially affect trait expression. Homogeneous developmental environments typically favor fixed phenotypes, whereas heterogeneous environments can […]

ROWE, M.P.*; ROWE, A.H.; Appalachian State Univ.; North Carolina State Univ.: Risk assessment by grasshopper mice feeding on potentially lethal prey Predators should benefit from assessing the risks posed by prey that differ in their dangerousness. Assessment, coupled with adaptive adjustment of the predator�s behavior, could come at any phase of the predatory sequence: search/recognition; […]