BORLAND, SJ; MALACINSKI, GM; Indiana University; Indiana University: Axolotls as a Model System in Undergraduate Developmental Biology Courses The axolotl (Ambystoma mexicanum) has served as an important non-mammalian model system for research in developmental biology and neurobiology for more than a century. The axolotl, a neotenic salamander, has also become an increasingly important system for […]

RAUER, E.M.; FELDMAN, R.A.; JACKSON, D.C.; Brown University: Avenues of Aquatic Oxygen Uptake in Painted Turtles (Chrysemys picta belli) at 10�C Painted turtles can survive long periods submerged in water without access to air, which they must do every winter in northern latitudes. They can take up oxygen from water, but how they do this […]

BAXTER, N.B.*; DAZLEY, J.S.; SAVAGE, C.; FARMER, C.G.; Univ. of Utah: Apparent Assimilation Efficiency of Various Diets of Juvenille American Alligators Alligator mississippiensis This study examined the importance of gastroliths to apparent digestive efficiency and time course in American alligators (Alligator mississippiensis). We used 7 juvenile subjects with masses of 0.353 � 0.058 Kg (SEM) […]

DERRYBERRY, E.P.*; FOUFOPOULOS, J.; DOBSON, A.P.; MACDOUGALL-SHACKLETON, E.A.; HAHN, T.P.; Duke University, Durham, NC; University of Michigan, Ann Arbor; Princeton University, NJ; University of Western Ontario, London; University of California, Davis: An investigation of the effects of two haematozoa on reproductive success in mountain white-crowned sparrows. Blood-borne parasites may impose selective pressures on their host […]

COUGHLIN, D. J.; SPIECKER, A. T.; SCHIAVI, J. M. ; Widener University, Chester, PA: Aerobic Muscle Recruitment During Steady Swimming In Trout Rainbow trout (Oncorhynchus mykiss) and brook trout (or charr, Salvelinus fontinalis) display different rostral-caudal patterns of power production by the red or aerobic muscle during steady swimming. The anterior muscle of rainbow trout […]

BOILY, P.; KNIGHT, F.M.*; Univ. New Orleans, LA; Univ. of the Ozarks, AR: Adaptive significance of cold induced fever When exposed to cold temperatures, some mammals, notably the nine-banded armadillo (Dasypus novemcinctus) and the Siberian hamster (Phodopus sungorus), exhibit an increase in core temperature that is proportional to the intensity of the cold stimulus i.e. […]

ROGERS, C.L.; DIMOCK, R.V., Jr.; Wake Forest University: Acquired resistance of bluegill sunfish Lepomis macrochirus to ectoparasitic glochidia larvae of Utterbackia imbecillis (Bivalvia: Unionidae) after multiple infections The glochidia larvae of most freshwater mussels are obligate ectoparasites on fishes, on which they metamorphose into juveniles. Since there is a growing body of evidence that fishes […]

COLOMBO, M.J.; VATNICK, I.; BRODKIN, M.A.; ANDREWS, J.L.; PIDDINGTON, E.J.; FIORINI, E.; RAMESWARAN, M.; WIDENER UNIVERSITY; WIDENER UNIVERSITY; WIDENER UNIVERSITY; WIDENER UNIVERSITY; WIDENER UNIVERSITY; WIDENER UNIVERSITY: Acid Stress Suppresses The Thioglycollate-Stimulated Inflammatory Response of Adult Rana pipiens Acidic environments function as a stressor for amphibians. Previous work in our lab showed that adult ranid frogs […]

KETTERING, R.D.; JOHNSON, G.P.; WOLFE, A.F.*; Lebanon Valley College; Lebanon Valley College; Lebanon Valley College: A histological and ultrastructural study of Artemia hemocytes Crustaceans, as well as other invertebrates and vertebrates, usually have several different types of blood cells within their vascular fluid. Artemia franciscana, an anostracan crustacean, has a single type of granular hemocyte […]

VIERTHALER, L; RYAN, M; TERWILLIGER, N.B.*; Southwestern College, Winfield, Kansas; University of Oregon, Oregon Institute of Marine Biology, Charleston; University of Oregon, Oregon Institute of Marine Biology, Charleston: A functional hemocyanin in the leptostracan Nebalia: Insights into molecular and arthropod phylogenies. In the Crustacea, the subclass Malacostraca consists of both the Eumalacostraca, which includes large […]