OWEN-ASHLEY, N. T.; HASSELQUIST, D.; WINGFIELD, J. C.; Univ. of Washington, Seattle; Lund Univ., Lund, Sweden; Univ. of Washington, Seattle: Indirect mechanisms of testosterone-induced immunosuppression in songbirds: a new paradigm We investigated the effect of different androgens on immune function in song sparrows (Melospiza melodia). The immunocompetence handicap hypothesis predicts a tradeoff between suppressive effects […]

HOLMAN, JD; BURNETT, KG; BURNETT*, LE; Grice Marine Lab, College of Charleston; Grice Marine Lab, College of Charleston; Grice Marine Lab, College of Charleston: Effects of Hypercapnic Hypoxia on the Clearance of Vibrio parahaemolyticus in the Blue Crab, Callinectes sapidus The blue crab, Callinectes sapidus, encounters both hypoxia and bacterial infections in its natural environment. […]

BOETTGER, S.A.; KELLEHER, A.L.; JERSZYK, E.C.; WALKER, C.W.; The University of New Hampshire, Durham; The University of New Hampshire, Durham; The University of New Hampshire, Durham; The University of New Hampshire, Durham: Clam Leukemia: A Pre-Clinical Model for Evaluating Topoisomerase II Inhibitors This study combines the use of traditional and novel topoisomerase II inhibitors promoting […]

FRANK, C. L.*; CAREY, H. V.; Fordham Univ.; Univ. of Wisconsin: The physiological stress induced by mammlian torpor Mammalian torpor is enhanced by a high polyunsaturated fatty acid (PUFA) diet, consequently the tissues of hibernating mammals tend to have high PUFA contents. Lipid peroxidation is a chain reaction initiated between reactive oxygen species (ROS) and […]

LIGNOT, J H; SECOR, S M; University Louis Pasteur / CNRS-Strasbourg ; University of Alabama: Postprandial morphological changes of the intestinal villi and enterocytes in the Burmese python As an apparent adaptive response to feeding infrequently on large meals, Burmese pythons (Python molurus) experience large regulatory swings in GI function and morphology with the start […]

GRAY, E M; BRADLEY, T J; Univ. of California, Irvine; Univ. of California, Irvine: Metabolic Rate in Female Mosquitoes: Age, Size, Activity and Feeding Effects Using flow-through respirometry, we have measured the pattern of CO2 release from adult female mosquitoes in the species Culex tarsalis. Individual rates of CO2 release and dry mass were also […]

SKOPEC, MM; KARASOV, WH; University of Wisconsin, Madison: Do salivary proline-rich proteins decrease the metabolic cost of tannin consumption? Tannins are polyphenolic compounds in plants that readily bind protein and can reduce palatability, digestibility and cause toxicity. Many mammals that come in contact with tannins in their diets have developed the ability to secrete proline-rich […]

MCCUE, M.D.; BENNETT, A.F.; HICKS, J.W.; University of California, Irvine: The physiology underlying specific dynamic action in pythons: a tail of two hypotheses We have previously demonstrated that specific dynamic action (SDA) in pythons is not triggered by inert food boluses and is highly dependent on meal type. Here we further investigated physiological processes underlying […]

MCWILLIAMS, S.R.; KARASOV, W.H.; Univ. Rhode Island; Univ. Wisconsin: Spare capacity in the digestive system of a migratory songbird and its ecological significance. Phenotypic flexibility in the digestive system of migratory birds is critically important in allowing birds to successfully overcome the physiological challenges of migration. Determining when rates of digestion constrain diet choice or […]

STARCK, J.M.; ABE, A.S.; NETO, A.C.; University of Jena, Germany; UNESP Rio Claro, Brazil: Morphological and Physiological Responses of the Digestive Tract to Feeding in Caimans Broad-nosed caimans (Caiman latirostris) experience considerable fluctuations in food supply. We asked: (1) what happens to the gastrointestinal tract when caimans are fasting, i.e., when the intestine is non-functional; […]