Meeting Abstract 56.5  Jan. 6  &beta-catenin mediated binary specification in the spiral-cleaving polychaete Platynereis dumerilii SCHNEIDER, Stephan Q.*; BOWERMAN, Bruce; Univ. of Oregon, Eugene; Univ. of Oregon, Eugene schneider@molbio.uoregon.edu &beta-catenin functions in the canonical Wnt-signaling pathway by activating target gene expression in the nucleus. Early roles for &beta-catenin signaling are surprisingly different among animal phyla. To gain […]

Meeting Abstract 56.3  Saturday, Jan. 5  Settlement and metamorphosis of the planulae of Pocillopora damicornis (Anthozoa) in response to bacteria TRAN, C.*; HADFIELD, M.G.; University of Hawaii at Manoa; University of Hawaii at Manoa cawa@hawaii.edu Larvae of the scleractinian coral Pocillopora damicornis are induced to settle and metamorphose in the presence of marine biofilms. In this study, […]

Meeting Abstract 56.5  Saturday, Jan. 5  Nutritional endoderm in a direct developing frog: A potential parallel to the evolution of the amniote egg BUCHHOLZ, DR*; SINGAMSETTY, S; KARADGE, U; LANGER, CE; ELINSON, RP; University of Cincinnati; Dusquense University; Dusquense University; Dusquense University; Dusquense University buchhodr@ucmail.uc.edu The egg of the direct-developing frog, Eleutherodactylus coqui, has 20X the volume […]

Meeting Abstract 56.4  Saturday, Jan. 5  Endocrine and developmental basis for the evolution of the pupa in holometabolous insects. SUZUKI, Y.**; TRUMAN, J.W.; RIDDIFORD, L.M.; University of Washington, Seattle; University of Washington, Seattle; University of Washington, Seattle ysuzuki2@u.washington.edu The evolutionary basis of metamorphosis in holometabolous insects has attracted considerable attention. Yet the developmental and evolutionary origin of […]

Meeting Abstract 56.1  Saturday, Jan. 5  Effects of pre-breeding food supplementation and group size on growth and survival of nestlings in the cooperatively breeding Florida Scrub-Jay (Aphelocoma coerulescens) RENSEL, M.A.*; SCHOECH, S.J.; Univ. Memphis; Univ. Memphis mrensel@gmail.com Conditions during development may play an important part in the realization of an individual�s lifetime fitness. Many factors can influence […]

Meeting Abstract 56.6  Saturday, Jan. 5  Deiodination and the control of metamorphosis in anuran amphibians INFANTE, C.R.; Museum of Comparative Zoology, Harvard University cinfante@oeb.harvard.edu Metamorphosis in anuran amphibians (frogs) is a complex process characterized by the extensive remodeling of larval tissues via growth or resorption and the de novo formation of many adult structures. At the level […]

Meeting Abstract 56.2  Saturday, Jan. 5  Allometric engineering of salamanders LANDBERG, T; University of Connecticut, Storrs tobias.landberg@uconn.edu Egg size is a key life-history trait of amphibians that varies at every level: within clutches, between individuals, across species and among habitats. Egg size variation may mediate competitive and predatory interactions through links with growth and developmental rates. Unfortunately, […]

Meeting Abstract 56.5  Tuesday, Jan. 6  The Measurement and Interpretation of Phylogenetic Signal REVELL, Liam J.*; COLLAR, David C.; HARMON, Luke J.; Harvard University; Harvard University; University of Idaho lrevell@fas.harvard.edu Recently, biologists have been inclined to make process-oriented inferences from measures of phylogenetic signal, defined as the pattern of statistical dependence among the observations for species related […]

Meeting Abstract 56.2  Tuesday, Jan. 6  Nudibranch diversity in the Ross Sea, Antarctica: Theyre cold, but are they old? SHIELDS*, C. C.*; MARKO, P. B.; WOODS, H. A.; MORAN, A. L.; Clemson Univ.; Clemson Univ.; Univ. of Montana; Clemson Univ. shields@clemson.edu The Southern Ocean (SO) surrounding Antarctica is extremely cold and geographically isolated. The phylogenetic affinities of […]

Meeting Abstract 56.3  Tuesday, Jan. 6  Molluscan phylogeny investigated using three nuclear protein-coding genes KOCOT, K. M.*; HALANYCH, K. M.; Auburn University; Auburn University kmkocot@auburn.edu With over 130,000 described extant species, Mollusca is the second most diverse animal phylum. Surprisingly, the phylogenetic relationships among the eight major lineages of Mollusca remain largely unknown. Although relatively few molecular […]