Meeting Abstract 48.8  Sunday, Jan. 5 11:45  Natal Homing and the Geomagnetic Imprinting Hypothesis for Salmon and Sea Turtles LOHMANN, K.J.**; PUTMAN, N.F.; LOHMANN, C.M.F.; Univ. of North Carolina, Chapel Hill; Oregon State University; University of North Carolina, Chapel Hill KLohmann@email.unc.edu Several marine animals, including salmon and sea turtles, migrate across vast expanses of seemingly featureless ocean […]

Meeting Abstract 48.5  Sunday, Jan. 5 11:00  Magnetic orientation in C. elegans is mediated by a pair of magnetosensitive neurons VIDAL-GADEA, AG*; WARD, KA; TRUONG, N; PARIKH, A; BERON, C; PIERCE-SHIMOMURA, JT; The Univ. of Texas at Austin, Austin; The Univ. of Texas at Austin, Austin; The Univ. of Texas at Austin, Austin; The Univ. of Texas […]

Meeting Abstract 48.4  Sunday, Jan. 5 10:45  Looking above the prairie: localized and upward acute vision in a native grassland bird TYRRELL, L.P.*; FERNANDEZ-JURICIC, E.; Purdue University; Purdue University ltyrrell@purdue.edu The visual system of open habitat vertebrates is predicted to have a band of acute vision across the retina (visual streak) and a wide angle of visual […]

Meeting Abstract 48.3  Sunday, Jan. 5 10:30  In the Eye of the Beholder: Intraspecific Variation in Retinal Physiology and Modeled Visual Perception in Two Species of Passerines ENSMINGER, A.L.*; ELMORE, A.G; PITA, D.L.; FERNANDEZ-JURICIC, E.; Purdue University, West Lafayette, IN; Purdue University, West Lafayette, IN; Purdue University, West Lafayette, IN; Purdue University, West Lafayette, IN amanda.ensminger@gmail.com Many […]

Meeting Abstract 48.6  Sunday, Jan. 5 11:15  Finger on the Pulse: Evidence for Magnetite-Based Magnetoreceptors in the Caribbean Spiny Lobster ERNST, D.A.*; GENTRY, K.; LOHMANN, K.J.; University of North Carolina at Chapel Hill dernst@live.unc.edu The Earth’s magnetic field plays an important role in guiding diverse species by providing both directional (compass) and positional (map) information. However, the […]

Meeting Abstract 48.7  Sunday, Jan. 5 11:30  Baby come back: Geographic shifts in sea turtle nesting provide evidence for geomagnetic imprinting BROTHERS, JR*; LOHMANN, KJ; University of North Carolina, Chapel Hill; University of North Carolina, Chapel Hill brotherj@live.unc.edu Some migratory animals return to reproduce in the same geographic region where they began life, a behavior known as […]

Meeting Abstract 47.5  Sunday, Jan. 5 11:15  Molecular mechanisms for whole-body regeneration in acoels SRIVASTAVA, M*; MAZZA-CURLL, KM; REDDIEN, P; Whitehead Institute/MIT; Whitehead Institute/MIT; Whitehead Institute/MIT mansi@wi.mit.edu Whole-body regeneration is widespread in the Metazoa, yet little is known about how underlying molecular processes compare across distantly related phyla. Acoels are an enigmatic phylum of invertebrate worms that […]

Meeting Abstract 47.4  Sunday, Jan. 5 11:00  Mechanisms of primordial germ cell migration in the sea urchin, Lytechinus variegatus MARTIK, ML*; MCCLAY, DR; Duke University; Duke University megan.martik@duke.edu The sea urchin small micromeres arise at the vegetal pole from an unequal 5th cleavage, and their progeny are specified to become the primordial germ cells of the embryo. […]

Meeting Abstract 47.2  Sunday, Jan. 5 10:30  Gastrulation and the fate of the blastopore in the snail Crepidula fornicata LYONS, D/C*; PERRY, K; HENRY, J/Q; Duke University; University of Illinois, Urbana-Champaign dcl.duke@gmail.com Gastrulation is a critical morphogenetic process in metazoan development by which presumptive endoderm and mesoderm cells become internalized. Modes of gastrulation (e.g., ingression, invagination, epiboly) […]

Meeting Abstract 47.3  Sunday, Jan. 5 10:45  Evolution of the Cadherin-Catenin Adhesion Complex: Insights from the Starlet Sea Anemone, Nematostella vectensis CLARKE, DN*; MILLER, PW; LOWE, CJ; NELSON, WJ; Stanford University clarken@stanford.edu A simple epithelium is a sheet of cells that separates the inside of an organism from the surrounding environment, and is thought to be the […]