Cyanocytes in Limulus polyphemus trilobite larvae

KIMBLE, M.*; TREMBLAY, N.; HINSCH, G.W.; COURSEY, Y.; ARMSTRONG, P.B.; Northeastern Illinois University; University of South Florida; University of South Florida; University of Massachusetts, Dartmouth; University of California, Davis: Cyanocytes in Limulus polyphemus trilobite larvae. The overall structure and function of hemocyanins, the primary oxygen transporting proteins in arthropods, is similar in different species, however, […]

Cryoprotection by urea in a terrestrially-hibernating frog

COSTANZO, J.P.*; LEE, R.E., Jr.; Miami Univ., Oxford, Ohio; Miami Univ., Oxford, Ohio: Cryoprotection by urea in a terrestrially-hibernating frog The role of urea as a balancing osmolyte in osmotic adaptation is well known, but this �waste product� also has myriad other functions in diverse taxa. We report that urea plays an important, previously undocumented […]

Crowding induces a greater cardiovascular stress response in male European starlings (Sturnus vulgaris) when in breeding condition

DICKENS, M. J.*; ROMERO, L. M.; Tufts University: Crowding induces a greater cardiovascular stress response in male European starlings (Sturnus vulgaris) when in breeding condition European starlings alter their physiology and behavior between seasons. As daylight lengthens, starling males enter breeding condition and become territorial, while shortening daylength induces flocking behavior. This changing physiology and […]

Contemporary gene flow and historic events have produced geographic associations of genetic variation in populations of the freshwater mussel Elliptio complanata from northern New York

TEMKIN, M.H.*; TWICHELL, N.P.; ERICKSON, J.M.; St. Lawrence University, Canton, NY; St. Lawrence University, Canton, NY; St. Lawrence University, Canton, NY: Contemporary gene flow and historic events have produced geographic associations of genetic variation in populations of the freshwater mussel Elliptio complanata from northern New York The Adirondack Highland and adjacent St. Lawrence Lowland areas […]

Comparing seasonal changes in metabolism and cold-hardiness of winter- and summer-emerging stoneflies

SKINNER, E.C.**; BENNETT, V.A.; Clarion University of Pennsylvania; Clarion University of Pennsylvania: Comparing seasonal changes in metabolism and cold-hardiness of winter- and summer-emerging stoneflies Low temperatures of winter place stress on many organisms. Insects have developed a variety of adaptations that allow them to avoid harsh conditions. Some insects have periods of dormancy during the […]

Cloning and expression pattern of Procambarus clarkii elongation factor 1&gamma

GILLEN, C.M.*; GAO, Y.; WYLDE, M.R.; WHEATLY, M.G.; Kenyon College, Gambier, OH; Wright State University, Dayton, OH; Kenyon College, Gambier, OH; Wright State University, Dayton, OH: Cloning and expression pattern of Procambarus clarkii elongation factor 1&gamma Elongation factor 1 is a multisubunit protein that is part of the protein synthesis apparatus in eukaryotes. We have […]

Chronic caloric restriction increases susceptibility of laboratory mice to infection with the intestinal nematode Heligmosomoides polygyrus

KRISTAN, D.M.*; MANIBUSAN, P.T.; ALVARADO, I.; California State Univ., San Marcos; California State Univ., San Marcos; California State Univ., San Marcos: Chronic caloric restriction increases susceptibility of laboratory mice to infection with the intestinal nematode Heligmosomoides polygyrus Numerous benefits of chronic caloric restriction (i.e. undernutrition without malnutrition) have been repeatedly demonstrated for a wide array […]

Characterization of metabolic recovery from activity in Rana catesbeiana

PETERSEN, A.M.*; GLEESON, T.T.; Univ. of Colorado, Boulder: Characterization of metabolic recovery from activity in Rana catesbeiana The dynamics of lactate transport and glycogen synthesis during activity and recovery were examined in 15& deg;C acclimated Rana catesbeiana. Frogs were injected with 14 C- lactate prior to activity. Average resting blood pH was 8.08. and fell […]

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