FEDER, M.E.; EVGEN’EV, M.B.; ZATSEPINA, O.; GARBUZ, D.; Univ. Chicago; EIMB, Moscow; EIMB, Moscow; EIMB, Moscow: Interspecific Genetics of Thermotolerance and the Heat-Shock Response in the virilis Group of Drosophila In studies of thermotolerance, large differences among higher taxa and small differences within a species are normally separate realms of investigation, with genetic experimentation currently […]

O’CONNOR, M.P.; Drexel Univ.: Importance of upstream flow obstructions to convective heat exchange in terrestrial ectotherms Convective heat transfers can be dominant exchange pathways in terrestrial ectotherms. For animals in the field, estimated convective exchanges, whether based on empirical measurements or on biophysical models, depend on assumptions about air flows. Further, such estimates depend on […]

PENICK, D. N.; University of Connecticut, Storrs & Bucknell University, Lewisburg PA: Endothermy of Ambystomid Salamanders: New Perspectives on the Evolution of Endothermy in Vertebrates Several Ambystomid species migrate from hibernacula to breeding pools during late winter rains when temperatures can quickly drop below freezing. In these studies, I describe a novel thermoregulatory strategy found […]

RANK, N. E.; BRUCE, D. A.; MC MILLAN, D. M.; DAHLHOFF, E. P.; Sonoma State Univ.; Sonoma State Univ.; Santa Clara Univ.; Santa Clara Univ.: Effects of temperature and PGI genotype on performance in a Sierra willow beetle We examined effects of recent thermal history on locomotor performance in Eastern Sierra, Nevada populations of the […]

VAN SANT, M. J.; BAKKEN, G. S.; Indiana State University; Indiana State University: Do Ducklings Get Cold Feet? Mallard ducklings (Anas platyrhynchos) take to the water shortly after hatching. Their legs and feet are completely un-insulated and submerged while swimming, providing a place for large amounts of heat transfer to take place. Studies on adult […]

COSTANZO, JP; BAKER, PJ*; LEE, RE; Miami University: Comparative Physiology of Freeze Tolerance in Hatchling Turtles Freeze Tolerance in Hatchling Turtles: a Comparative Study J.P. Costanzo, P.J. Baker, and R.E. Lee, Jr. Department of Zoology, Miami University, Oxford, OH Hatchlings of some, though not all, species of northern freshwater turtles are tolerant of somatic freezing, […]

MUIR, T.J.*; COSTANZO, J.P.; LEE JR, R.E.; Miami University; Miami University; Miami University: Brief Cold Conditioning Improves Freeze Tolerance and Chill Tolerance in Hatchling Painted Turtles Strategies for winter survival in hatchling turtles living in temperate climes involve avoidance of sub-freezing temperatures or an ability to survive them. Hatchling painted turtles (Chrysemys picta) employ the […]

LEVIN, R.N.*; FREUND, K.; FUXJAGER, M.; Pomona College, Claremont, CA: Understanding Patterns of Variation in Avian Life History Traits: Comparisons of Temperate & Tropical House Wrens Food availability, nest predation and adult mortality are three factors commonly proposed to explain latitudinal and altitudinal variation in avian life history traits. We report here on our ongoing […]

LAPLANTE, L.H.; University of Connecticut: Social environment influences a nuptial signal displayed by female Halichoeres margaritaceus, the Pink-belly Wrasse In conventional mating systems, females are �choosy� and not expected to have elaborate mating displays; nonetheless female nuptial signals (FNS) are observed in a wide variety of taxa. Factors leading to the evolution of FNS have […]

KIM, TW; RISSANEN, R; REBEIRO, P; CHRISTY, JH; CHOE, JC; Seoul National University; University of Panama; Universidad Nacional de Mar del Plata; Smithsonian Tropical Research Institute; Seoul National University : Sexual differences in the affects of supplimental food on the semilunar reproductive rhythms of an intertidal crab Fiddler crabs and many other intertidal animals have […]