LIVINGSTON, Brian T.; HARMON, Mary; University of South Florida: Early Development of the Ophiuroid Ophiocoma wendtii Both the morphogenetic movements and the gene regulatory network that control sea urchin development have been characterized in great detail. In particular, we know how micromeres are formed during the fourth cleavage division, and how entry of beta-catenin into […]

LAVIN, S.R.; MCWHORTER, T.J.; KARASOV, W.H.; Univ of WI : Do birds exhibit greater paracellular absorption than mammals? Water-soluble compounds can be absorbed paracellularly (in between epithelial cells) in the small intestine, and this absorption is enhanced by transport of luminal nutrients possibly due to solvent drag. Differential paracellular uptake may make certain taxa more […]

WEISE, Michael / J; COSTA, Daniel / P; Univ. of CA Santa Cruz: Diving Behavior of the Male California Sea Lion (Zalophus californianus) Intraspecific differences in foraging and diving behavior of males and females have been found in a variety of marine predator species. Among the hypotheses to describe sex differences in foraging behavior are […]

PASEKA, A.D.*; SLOBODCHIKOFF, C.N.; University of Nebraska-Lincoln; Northern Arizona University: Discrimination of Color by Gunnison�s Prairie Dogs in Alarm Calls Gunnison�s prairie dogs, Cynomys gunnisoni, can identify and incorporate information about physical features of individual humans into their alarm calls. Previous work has shown that humans, each wearing a separate color, elicit different alarm calls. […]

KALMUS, Gerhard W.; BAXLEY, Tamatha; SCEMAMA, Jean-Luc; East Carolina University: Differential Expression of Abd-B-like Genes in the Enterocytic Differentiation of Caco-2 Cells. The well conserved family of Hox genes code for transcription factors that are active regulators of segmental identity along the anterior-posterior axis in developing embryos. This activity is reportedly seen in the AP […]

GUNTER, H M; DEGNAN, B M*; Univ. of Queensland, Australia; Univ. of Queensland, Australia: Developmental and heat shock response roles of Hsp90 in Haliotis asinina larvae. Heat shock protein 90 is a chaperone, a developmental regulator and stress protein. Stress diverts Hsp90 from its developmental role and its occurrence during development can unlock cryptic genetic […]

BROWNE, W.E.; PATEL, N.H.; MARTINDALE, M.Q.; Kewalo Marine Lab, University of Hawaii; HHMI, University of California, Berkeley; Kewalo Marine Lab, University of Hawaii: Developmental Expression of lab and ems in the head and CNS of Parhyale hawaiensis The arthropod head is a complex multimeric structure. At the level of molecular patterning in Drosophila it appears […]

MARKS, C.*; BAGATTO, B.; MOORE, F.B.-G.; University of Akron; University of Akron; University of Akron: Developmental Environment Alters Conditional Aggression in Zebrafish Many vertebrates display developmental plasticity for a wide variety of traits. In these plastic traits the developmental environment often influences the direction of development. Such plasticity is often assumed to be adaptive. Similarly […]

FLETCHER, J.; WIBBELS, T.*; University of Alabama at Birmingham; University of Alabama at Birmingham: Development of a quantitative-competitive PCR for anti-mullerian hormone in the red-eared slider turtle. The physiology underlying temperature-dependant sex determination (TSD) and sexual differentiation in reptiles is not well understood. However, several genes that were initially identified in other vertebrates may play […]

CALSBEEK, R.; MILES, D. B.; SINERVO, B.; Univ. of California, Los Angeles; Ohio University; Univ. of California, Santa Cruz: Corticosterone, Locomotor Performance, and Metabolism in Side-Blotched Lizards (Uta stansburiana) Elevated levels of circulating corticosterone commonly occur in response to stress in wild vertebrates. A rise in corticosterone, usually in animals of subordinate rank, results in […]