RHYNE, A.L.**; JOHNSON, K.J.; LIN, J.; Florida Institute of Technology; Florida Institute of Technology; Florida Institute of Technology: Ontogenetic shift of spectral sensitivity in the larval phototaxis of two caridean shrimp, Lysmata wurdemanni and L. boggessi We subjected larvae of two species of caridean shrimp (Lysmata wurdemanni and Lysmata boggess) to a range of light […]

OYARZUN, F.X.*; HALANYCH, K.; SWALLA, B.; University of Washington; Auburn University; University of Washington: Molecular Phylogeography and Reproductivion of the Poecilogonous Polychaetes ““Boccardia proboscidea”” and ““B. wellingtonensis”” (Polychaeta: Spionidae): Two worms and Two hemispheres Poecilogony is the ability to alternate between multiple developmental modes. Although rare, poecilognous species are useful models to study reproductive tradeoffs […]

STRATHMANN, R. R. *; HYSERT, A. ; FOLEY, R.; University of Washington, Friday Harbor: Food Limited Growth, Plasticity in Loss and Gain of Metamorphic Competence, and Recruitment of the Cyphonautes Larva of a Bryozoan The cyphonautes larvae of bryozoans have a low capacity for clearing food from suspension. As predicted, they starved at concentrations of […]

PERNET, B.; California State University, Long Beach: Feeding by larvae of two different developmental modes in the annelid Streblospio benedicti Females of the spionid polychaete Streblospio benedicti produce either small eggs that develop into planktotrophic larvae, or large eggs that reportedly develop into nonfeeding, lecithotrophic larvae. This apparent polymorphism is potentially useful for testing hypotheses […]

MCALISTER, J/S; University of North Carolina at Chapel Hill: Environmental heterogeneity and the evolution of plasticity in Panamanian echinoid larvae Theoretical models predict that phenotypic plasticity should evolve in response to changes in environmental heterogeneity. To test the hypothesis that historical changes in heterogeneous food resources are associated with the evolution of plasticity, I studied […]

L�PEZ-DUARTE, P.C.*; TANKERSLEY, R.A.; Florida Institute of Technology; Florida Institute of Technology: Endogenous Swimming Rhythms of Fiddler Crab Zoeae from Different Tidal Regimes Larvae of the fiddler crab Uca pugilator are released near the time of high tide and are exported to shelf waters to undergo development. Previous studies indicate that newly hatched zoeae use […]

MAHON, B.C.*; NEIGEL, J.E.; Univ. of Louisiana at Lafayette; Univ. of Louisiana at Lafayette: A real-time PCR assay for detection and quantification of crustacean larvae in plankton samples The study of larval dispersal at sea has historically been a labor intensive process involving long and tedious hours of sorting and attempts at identification of larvae […]

ROBERTSON, Bruce; University of Montana: A framework for understanding ecological traps and an evaluation of existing evidence When an animal settles preferentially in a habitat within which it does poorly relative to other available habitats, it is said to have been caught in an �ecological trap.� Although the theoretical possibility that animals may be so […]

Meeting Abstract 8.6  Jan. 4  Zig-zag locomotion alters shape of the murine limb bone diaphysis CARLSON, KJ*; JUDEX, S; Universitaet Zuerich; Stony Brook University carlson@aim.unizh.ch Many terrestrial animals incorporate rapid turns as a part of predator avoidance behavior, while arboreal animals encounter irregularly spaced substrates necessitating frequent turns during daily travel. Yet consequences of turning behavior on […]

Meeting Abstract 8.2  Jan. 4  Single Limb Forces in Jumping Frogs: Implications for Limb Bone Loading BLOB, R.W.**; ESPINOZA, N.R.; PRUETTE, M.E.; WRIGHT, K.M.; CIRILO, S.R.; GOSNELL, J.S.; Clemson Univ.; Erskine College; Clemson Univ.; Clemson Univ.; Erskine College; Clemson Univ. rblob@clemson.edu The explosive jumps of frogs represent a dramatic locomotor behavior that might be expected to place […]