Meeting Abstract 24.2  Friday, Jan. 4  Form and function; identifying the underlying regulatory mechanisms of intestinal performance SECOR, S.M.*; COX, C.L.; LIGNOT, J.-H.*; Univ. of Alabama; Univ. of Alabama; CEPE-CNRS, Louis Pasteur Univ. ssecor@biology.as.ua.edu Infrequently feeding snakes possess the adaptive capacity to widely regulate gastrointestinal performance with feeding and fasting. Feeding triggers a doubling of small intestinal […]

Meeting Abstract 24.1  Friday, Jan. 4  Digestive physiological differences between alligators and crocodiles: Are crocodilians just meat eaters? TRACY, Christopher R.*; MCWHORTER, Todd J.; MANOLIS, S. Charlie; WEBB, Grahame J. W.; CHRISTIAN, Keith A.; Charles Darwin University; Murdoch University; Wildlife Management International; Wildlife Management International; Charles Darwin University chris.tracy@cdu.edu.au Some of the New World crocodilians (alligators and […]

Meeting Abstract 24.5  Friday, Jan. 4  Diet-induced plasticity in intestinal maltase activity in nestling house sparrows during development KOHL, K.; BRZEK, P.; CAVIEDES-VIDAL, E.; KARASOV, W.H.*; University of Wisconsin, Madison; University of Wisconsin, Madison; Universidad Nacional de San Luis, Argentina; University of Wisconsin, Madison pbrzek2@wisc.edu Previous studies in adult house sparrows (Passer domesticus) showed a lack of […]

Meeting Abstract 24.4  Monday, Jan. 5  The hydrodynamics of gill ventilation in teleost fishes STROTHER, J.A.; Univ. of California, Irvine strother@uci.edu The gills of teleost fishes have been described as a model counter-current exchanger. The coordinated movements of the buccal cavity and the opercula drive water through the gills in a direction opposite to that of the […]

Meeting Abstract 24.5  Monday, Jan. 5  Structure and Function of theTurtle Heart Through In Vivo Imaging of Blood Flow WYNEKEN, Jeanette; Florida Atlantic University jwyneken@fau.edu Cardiac structure is quite varied within nonavian sauropsids (reptiles) including shape of the heart, extent of separation of the three intraventricular compartments, degree of development of the intraventricular muscular ridge, and the […]

Meeting Abstract 24.3  Monday, Jan. 5  Modeling blood flow through amphibian hearts using flow visualization and the immersed boundary method HAMLET, C.L.*; MILLER, L.A.; The University of North Carolina at Chapel Hill chamlet@email.unc.edu Amphibian hearts are characterized by three chambers: two thin-walled atria and a single ventricle with a thick, spongy lumen. The left atrium pumps oxygenated […]

Meeting Abstract 24.1  Monday, Jan. 5  Fluid Flow in Physical Models of the Endothelial Surface Layer GUNDERSON, J.A.*; SANTHANAKRISHNAN, A; MILLER, L.A.; Univ. of North Carolina, Chapel Hill jengun@email.unc.edu The purpose of this study is to investigate fluid flow in physical models of the endothelial surface layer by comparing both Newtonian and non-Newtonian fluids. Newtonian fluids are […]

Meeting Abstract 24.2  Monday, Jan. 5  Flow within Physical Models of the Vertebrate Embryonic Heart NGUYEN, NHI / P.*; MILLER, LAURA; SANTHANAKRISHNAN, ARVIND; GUNDERSON, JENNIFER; Univ. of North Carolina, Chapel Hill en08nicki@gmail.com Vertebrate cardiogenesis is believed to be partially regulated by fluid forces imposed by blood flow in addition to myocardial activity and other epigenetic factors. Recent […]

Meeting Abstract 24.6  Monday, Jan. 5  Direct visualization of hemolymph flow in the heart of a grasshopper LEE, W.-K.; SOCHA, J.J.*; Argonne National Laboratory; Virginia Tech jjsocha@vt.edu Most insect circulatory systems are open, consisting solely of a muscular tube that runs from the abdomen to the anterior body. The heart system includes ostial valves, which can effect […]

Meeting Abstract 24.3  Monday, Jan. 4  When is Success not Success? When it’s Songbird Nesting Success STREBY, Henry/M*; ANDERSEN, David/E; Minnesota Cooperative Fish and Wildlife Research Unit; Minnesota Cooperative Fish and Wildlife Research Unit streb006@umn.edu Estimates of nesting success have long been used as a proxy for reproductive success in songbird populations. These estimates have been used […]