KOHN, A.J.*; DUDA, T.F. Jr.; Univ. of Washington; Smithsonian Tropical Research Station: Genetic, morphological and ecological differentiation in Conus ebraeus, a Pan-Indo-Pacific zoogeographic species We examined Conus ebraeus, the most widely distributed zoogeographic species in the largest marine genus, for evidence of cryptic biodiversity. Individuals sampled over most of the entire range (Hawaii to Seychelles) […]

BEGOVIC, Emina; LINDBERG, David R.; University of California, Berkeley; University of California, Berkeley: Genetic Signatures Of Dispersal: Separating Life History From Ecology And Phylogeny The ecological effects of larval dispersal capabilities in marine invertebrate life histories have long been recognized, but their implications for evolutionary events such as speciation, extinction, and genetic population structure, have […]

SHOOK, D.S. *; KELLER, R.; University of Virginia, Charlottesville: Variation among Amphibians of Morphogenetic Mechanisms Driving Gastrulation Vertebrate embryos use a great variety of mechanisms to drive morphogenesis during gastrulation and neurulation, as they reorganize a simple ball or sheet of cells into a complex tube that has most of the features of the adult […]

MARTINEZ, G.M.; Univ. of New Hampshire: Early mantle function in embryonic squids. Abstract: The muscular mantle of squids has two primary functions:locomotion and respiration. In squid embryos, the mantle is able to contract well before hatching. The mantle contractions seen in early squid embryos are mainly attributed to incipient respiration and the movement of water […]

BRISCOE, AD; SISON-MANGUS, MP; Univ. of California, Irvine: Blue Opsin Genes for Blue Butterflies Physiological study has shown that butterflies belonging to the Lycaenidae or the �blues� have 4 spectral types of visual pigments (Bernard and Remington 1991). In this study, we characterized these visual pigments molecularly. A cDNA library from the eyes of 2 […]

KOROPATNICK, T; KIMBELL, J. R.; MCFALL-NGAI, M. J.; University of Hawaii, Honolulu: Bacteria-induced loss of ciliated epithelia: bacterial signal factors, hemocytes, and the light organ of a squid The loss of a ciliated epithelium is a common event during the metamorphosis of marine invertebrate larvae; however few studies have explored the underlying mechanisms. The squid […]

STOEHR, Andrew M.; Univ. of California, Riverside: Melanin in immune defense and wing coloration in the cabbage white butterfly, Pieris rapae The cell-mediated encapsulation response of the arthropod immune system utilizes the pigment melanin. Melanin or its precursors are also used for cuticle sclerotization and coloration. Recent work in some insect species suggests that these […]

KAHN, P.F.*; MENDON�A, M.T.; Auburn University; Auburn University: Effects of Gopher Tortoise Relocation on the Development and Progression of Upper Respiratory Tract Disease Upper Respiratory Tract Disease (URTD) is a bacterial disease caused by Mycoplasma agassizii that affects both gopher tortoises and desert tortoises. Conservationists debate the degree to which URTD impacts tortoises� health because […]

LEE, Kelly A.; MARTIN, Lynn B.; WIKELSKI, Martin C.; Princeton University; The Ohio State University; Princeton University: Do immune defense strategies differ between invasive New World populations of the House Sparrow and their Old World ancestors? When introduced into new regions, invading organisms leave many native pathogens behind but also encounter evolutionarily novel disease threats. […]

ROGERS-LOWERY, C. L.; DIMOCK, R. V.; Wake Forest University: Antibody-mediated immune response of fish during development of acquired resistance against larvae of freshwater mussels The glochidia larvae of most freshwater mussels are obligate ectoparasites on fishes, on which they metamorphose into juveniles. We have demonstrated that bluegill sunfish (Lepomis macrochirus) develop acquired resistance to glochidial […]