PRUITT, NL; Colgate University: Seasonal Changes in Membrane Lipids Associated with Freeze Tolerance in Eurosta solidaginis Third instar larvae of the goldenrod gall fly Eurosta solidaginis (Diptera: Tephritidae) are freeze-tolerant in winter. Cell membranes must compensate for both low temperature and dehydration during freezing. Documented adaptations to low temperature include increased fatty acid unsaturation and […]

DANIEL, S; KORINE, C; PINSHOW, B; Jacob Blaustein Inst. Desert Res. and Ben-Gurion University of the Negev; Jacob Blaustein Inst. Desert Res. ; Jacob Blaustein Inst. Desert Res. and Ben-Gurion University of the Negev: Roost selection, thermoregulatory behavior and foraging activity in a desert dwelling bat during lactation We investigated the patterns of energy use […]

TRACY, C. R.*; CHRISTIAN, K. A.; YOUNG, J. E.; Charles Darwin University; Charles Darwin University; Charles Darwin University: Relationships between temperature preferences, hopping performance and water loss in northern Australian Hylid frogs. We measured preferred body temperature in a thermal gradient for twelve species of Hylid frogs (genus Litoria and Cyclorana) from the wet/dry tropics […]

ANDERSON, N.J.; Idaho State Univ.: Multitasking: How a tortoise manages multiple constraints on body temperature regulation. In ectotherms, body temperature is known to influence a variety of behavioral and physiological processes. Many studies have found that ectothermic vertebrates may spend much of their time regulating their body temperature in order to optimize the rates of […]

LIGON, D.B.; Oklahoma State University: Effects of Incubation Temperature on Embryonic Development In a Tortoise, Geochelone sulcata The thermal environment to which reptile embryos are exposed can vary both temporally and spatially among individuals. In response to variable incubation conditions, developing embryos may make physiological adjustments to compensate for temperature differences. Physiological compensation in response […]

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 […]