ECAY, T.W.; STEWART, J.R.*; BLACKBURN, D.G.; East TN State Univ; East TN State Univ; Trinity College: Timing and Mechanism of Calcium mobilization During Embryonic Development of the Corn Snake Patterns of embryonic calcium mobilization vary among oviparous amniotes, yet the mechanism of calcium transport has been studied only in domestic chickens, which rely heavily on […]

CASTELLANOS-KOTKOFF, M; CARPIZO-ITUARTE, E*; DE-LA-ROSA-V�LEZ, J; Fac. de Biolog�a. Univ. A. de Baja California; Inst. de Inv., Oceanol�gicas. Univ. A. de Baja California; Fac. de Ciencias Marinas. Univ. A. de Baja Califonrnia: Thyroxine effect in metamorphosis and presence of the nuclear receptor COUP-TF in the larvae of the sea urchin Lytechinus pictus Several reports have […]

PORTER, Marianne E; DEAN, Mason N; SUMMERS, Adam P; University of California, Irvine; University of California, Irvine; University of California, Irvine: The role of spiracles during respiration in swimming dogfish Spiracles in elasmobranchs are vestigial gill slits presumed to be used in respiration, though there is some evidence of a sensory function. Animals at rest […]

VREEDE, A.P.*; STULBERG, M.J.; GILLEN, C.M.; ITAGAKI, H.; Kenyon College; Kenyon College; Kenyon College; Kenyon College: The relationship of metabolic and molecular variables to increased body size in larval Manduca sexta To address the relationship between the body size and physiology of the larval tobacco hornworm, Manduca sexta, we examined its metabolic rate, food conversion […]

LEDER, EH; SILVERSTEIN, JT; National Center for Cool and Cold Water Aquaculture, Leetown, West Virginia: The pro-opiomelanocortin genes in rainbow trout Oncorhynchus mykiss The pro-opiomelanocortin gene (POMC) is a precursor for several important peptide hormones involved in a variety of functions ranging from stress response to energy homeostasis. In mammals and fish, the POMC-derived peptide […]

CURTIS, N/E; MASSEY, S/E; SCHWARTZ, J/A; TAGIHOF, H; PIERCE, S/K; University of South Florida: The intracellular, functional chloroplasts in adult Elysia crispata come from several algal species, and are different from those in juvenile slugs. The sacoglossan sea slug, Elysia crispata, sequesters chloroplasts from its algal food source within specialized cells lining the digestive diverticulum. […]

UYENO, Theodore A.; KIER, William M.; Univ. of North Carolina, Chapel Hill; Univ. of North Carolina, Chapel Hill: The function of cephalopod buccal mass musculature The buccal mass of cephalopods includes a pair of jaws termed �beaks� that are used to masticate prey. The beaks perform complex movements, yet do not articulate with one another. […]

DAVIS, G.K.*; WITTKOPP, P.J.; STERN, D.L.; Princeton University; Cornell University; Princeton University: The evolution and regulation of Ubx in the pupal legs of Drosophila The fruit fly Drosophila melanogaster possesses a small region of naked cuticle on the T2 femur from which trichomes (hairs) are excluded. Other members of the subgenus sophophora, such as Drosophila […]

BAGLEY, J.C.*; SECOR, S.M.; University of Alabama, Tuscaloosa; University of Alabama, Tuscaloosa: The allometry of metabolic and intestinal performance for the marine toad and diamondback water snake To investigate the potential interactions between the allometry of metabolic rates and intestinal performance, we assess the effects of body mass on standard metabolic rates, intestinal mass, intestinal […]

LYNN, S. E.; COOMBS-HAHN, T. P. ; BREUNER, C. W. ; The College of Wooster; University of California, Davis; University of Texas, Austin: Testosterone, corticosterone, and binding globulins: plasma interactions and aggressive behavior in mountain white-crowned sparrows (Zonotrichia leucophrys oriantha) Male-male aggression over territory boundaries is common during the breeding season for many birds. In […]