CLELLAND, E; KOHLI, G; DIMUCCIO, T; CAMPBELL, R; PENG, C; York University, Toronto; York University, Toronto; York University, Toronto; Woods Hole Marine Science Centre, Woods Hole, Ma.; York University, Toronto: Investigation of Bone Morphogenetic Protein-15 (BMP-15) in Zebrafish Follicles Bone Morphogenetic Protein-15 (BMP-15) also known as Growth and Differentiation Factor-9B (GDF-9B) and a related peptide, […]

LOVETT, J.A.; SUNY College at Geneseo: Introductory Laboratory for Systematics We have developed an introductory biology course laboratory to illustrate the creation of phylogenetic trees based on shared morphological characters and the correlation between such trees and the trees based on molecular data. Such laboratory exercises usually try either to simulate production of a dichotomous […]

COOKE, SJ; STEINMETZ, J; DEGNER, J; GRANT, EC; PHILIPP, DP; Queen’s University Biology Station and the University of Illinois; University of Illinois; University of Illinois; University of Illinois; Illinois Natural History Survey: Interaction of Fish Size and Avian Predator Species on the Non-lethal Costs of Predation in Largemouth Bass Recently, researchers have identified that non-lethal […]

HALL, DJ*; PAUL, DH*; MARX, RM; Univ. of Victoria, BC; Univ. of Victoria, BC; Univ. of Victoria, BC: Integration of proprioceptive feedback into central motor circuitry in the sand crab, Emerita analoga (Anomura Hippidae). We are interested in how motor systems integrate sensory information and how such information modifies an animal’s behavior. In the sand […]

LONDRAVILLE, Richard L; NIEWIAROWSKI, PN; LAIPPLY, R; OWENS, K; University of Akron: Inquiry Based Laboratories for Introductory Biology UA Biology Department has been funded by the National Science Foundation to completely revise the laboratory portion of our Introductory Biology class for majors (Principles of Biology). All of the new labs are inquiry based. The new […]

KNUTZEN, Melissa S; JANZEN, Fred Janzen; MULLINS, Michael; Iowa State University; Iowa State University; Iowa State University: Initial investigation into the composition of eggs of the smooth softshell turtle, Apalone mutica Evolution of the cleidoic (amniotic) egg permitted vertebrates to permanently colonize land, yet distinct variation in egg properties has been observed. Rigid-shelled eggs, in […]

WILL, M.C.; BARNETT, A.R.; RIDGWAY, R.L.*; Seattle Pacific Univ.; Seattle Pacific Univ.; Seattle Pacific Univ.: Inhibition of Molluscan Hemocyte Motility by a Calmodulin Antagonist Hemocytes serve as a multipurpose cellular defense system in molluscs, circulating in the hemolymph until activated by tissue damage or infection. Activated hemocytes of the pond snail Lymnaea stagnalis change from […]

GONZALEZ, J/E; JANZEN, F/J; Iowa State University, Ames; Iowa State University, Ames: Inheritance of Nest-Site Choice in the Field in a Turtle with Temperature-Dependent Sex Determination The sex of most turtles, including that of painted turtles (Chrysemys picta), is determined by incubation temperature. Because of this unusual mechanism of sex determination, the choice of nest […]

ESTES, J.M.*; WIBBELS, T.; HILLIS-STARR, Z.; PHILLIPS, B.; University of Alabama at Birmingham; University of Alabama at Birmingham; National Park Service: Influence of weather and nest location on hatchling sex ratios of hawksbill sea turtles at Buck Island Reef National Monument, U.S. Virgin Islands The hawksbill sea turtle, Erethmochelys imbricata, possesses temperature-dependent sex determination (TSD) […]

STROTHER, J. A.; MCHENRY, M. J.; Univ. of California, Berkeley; Harvard University: How do marine invertebrate larvae orient to light? A numerical simulation of phototaxis in ascidian larvae. A diversity of marine invertebrate larvae orient their swimming to light. By swimming towards or away from the light, a larva can move up or down in […]