A change of heart in developing birds at the onset of endothermy

SOTHERLAND, P.R.*; KILLPACK, T.L.; SELBO, B.G.; DZIALOWSKI, E.M.; Kalamazoo College; Kalamazoo College; Kalamazoo College; Univ. of North Texas: A change of heart in developing birds at the onset of endothermy In pythons, postprandial upregulation of physiological systems is large, rapid, and correlated with a noticeable rise in standard metabolic rate. Cardiac hypertrophy of pythons in […]

The Influence of Environmental Parameters on the Invasive Chinese Mitten Crab, Eriocheir sinensis, Zoeae Recruitment Dynamics in San Francisco Bay, CA

RICE, A.*; BLUMENSHINE, S.; TSUKIMURA, B.; California State University, Fresno; California State University, Fresno; California State University, Fresno: The Influence of Environmental Parameters on the Invasive Chinese Mitten Crab, Eriocheir sinensis, Zoeae Recruitment Dynamics in San Francisco Bay, CA The Chinese mitten crab, Eriocheir sinensis (Crustacea: Decapoda: Grapsoidea), invaded San Francisco Bay, CA, in 1992. […]

Testing rates of planktonic versus benthic predation in the field

ALLEN, Jonathan D*; MCALISTER, Justin S; Bowdoin College; University of North Carolina at Chapel Hill: Testing rates of planktonic versus benthic predation in the field Predation is thought to be the most important source of embryonic and larval mortality for benthic marine invertebrates. However, few estimates of larval mortality exist and more precise estimates of […]

Ontogenetic shift of spectral sensitivity in the larval phototaxis of two caridean shrimp, Lysmata wurdemanni and L boggessi

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 […]

Molecular Phylogeography and Reproductivion of the Poecilogonous Polychaetes Boccardia proboscidea and B wellingtonensis (Polychaeta Spionidae) Two worms and Two hemispheres

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 […]

Feeding by larvae of two different developmental modes in the annelid Streblospio benedicti

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 […]

Environmental heterogeneity and the evolution of plasticity in Panamanian echinoid larvae

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 […]

Endogenous Swimming Rhythms of Fiddler Crab Zoeae from Different Tidal Regimes

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 […]

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