LUTTON, B.V.; CALLARD, I.P.; Boston University: Immune-endocrine relationships in the little skate, Raja erinacea The ovary and epigonal organ of the little skate, Raja erinacea, serve as a potential model for immune-endocrine (gonadal) interactions. In this study we are utilizing histological, cytological, and physiological methods to elucidate possible interactions between these tissues. Formalin fixed epigonal-ovary […]

KING, C.; ANGELES, C.; NDUKA, E.; CATAPANE, E.J.; Kingsborough Community College; Kingsborough Community College; Medgar Evers College; Medgar Evers College: Identification and Distribution of Biogenic Amines in Tissues of Crassostrea virginica Biogenic amines are neurotransmitters and hormones in animals. They are well studied in the bivalve mollusc Mytilus edulis, but not as well in oysters, […]

L�PEZ, M.; BELDEN, L.K.*; MIRZA, R.S.; KIESECKER, J.M.; Pennsylvania State University; Virginia Polytechnic Institute and State University; Pennsylvania State University; Pennsylvania State University: Host-finding behavior in trematode cercariae (family: Teleorchidae) Parasites rely on other organisms to complete all or a part of their life cycle. Therefore, the ability to locate hosts is paramount to their […]

DERRYBERRY, Elizabeth P; BALLENTINE, Barbara E; Duke University; Duke University: Historical changes in vocal performance: implications for mate choice. Recent studies on female mate choice suggest that female songbirds assess males’ relative abilities to perform the same song type. The production of physically challenging songs requires rapid and precise coordination of vocal tract movements. In […]

QUACKENBUSH, Scott; FASANO, Charles; LOWDER, Amy; MORI, Chi; BURNETTE, Johanna; BRODERS, Sarah; Univ.North Carolina at Wilmington: Growth in juvenile Callinectes sapidus Cohorts of juvenile (5-20mm) Callinectes sapidus were collected from the same site in North Carolina in fall and spring of 2000 and 2001. Crabs were held in captivity for 120-day experiments to determine the […]

BILEWITCH, J.P.; University of Toronto: Gorgonian Systematics and Phylogeography in Bermuda: Implications for Gene Flow Across the Gulf Stream The morphological and genetic differences within populations of five common species of gorgonian soft corals were compared to current taxonomic descriptions and estimates of gene flow between Bermuda and The Bahamas. Measurements of skeletal elements (sclerites) […]

GREGG, C.S.; FOLTZ, D.W.; Louisiana State University; Louisiana State University: Genetic variation in bivalve populations from oil-exploration platforms in the Gulf of Mexico Oil platforms in the northern Gulf of Mexico (GOM) occupy a range of depths from inshore (0 � 30 m) to offshore (30 � 60 m) to bluewater (60 m +), which […]

CHAN, L. M.; Cornell University: Genetic structure in an abundant toad with a rare metamorph Genetic population structure and diversity are important indicators of connectivity, persistence, and evolutionary potential. While dispersal capacity and geographic barriers certainly contribute to the differentiation of populations, species-specific aspects of life history, mating system, and ecology may also play a […]

RUMMEL, T. D.; KIMBERLY, D. J.; POWERS, D. R.; MCWHORTER, T. J.; George Fox University; George Fox University; George Fox University; Univ. of Wisconsin, Madison: Functional and Morphological Comparison of Hummingbird and Sunbird Digestive Tracts A morphological comparison of the Palestine Sunbird (Nectarinia osea) and Rufus Hummingbird (Selasphorus rufus) gastro-intestinal tracts illustrates structural differences in […]

MARTIN, G.G.; SIMCOX, B.; OLSON, S.; AMIRIAN, E.; RUBIN, N.; Occidental College, Los Angeles; Occidental College, Los Angeles; Occidental College, Los Angeles; Occidental College, Los Angeles; Occidental College, Los Angeles: Formation, composition, and permeability of the peritrophic membrane in two decapod crustaceans; the ridgeback prawn Sicyonia ingentis and the American lobster Homarus americanus In decapod […]