ALLMAN, Phil*; ROOSENBURG, Willem; BOWDEN, Rachel; Ohio University; Ohio University; Illinois State University: Egg size and yolk hormone levels in the diamondback terrapin across a latitudinal gradient Life history theory predicts that the number and size of offspring produced in one reproductive event should optimize maternal fitness for a given population. This optimization has been […]

GERALD, Gary W.*; KOTCHER, John E.; STONE, Caitlin; CLAUSSEN, Dennis L.; Miami University, Oxford, OH; Miami University, Oxford, OH; Miami University, Oxford, OH; Miami University, Oxford, OH: Effects of incline and substrate on the costs of locomotion in male fiddler crabs (Uca pugilator) Sexual selection occurs when females preferentially produce offspring with males possessing exaggerated […]

COPELAND, J.M.*; DZIALOWSKI, E.M.; University of North Texas, Denton: Effects of hypoxic incubation on reactivity and morphology of the ductus arteriosi in near-term chicken embryos The developing avian embryo has a left ductus arteriosus (LDA) and a right ductus arteriosus (RDA) that shunt pulmonary blood away from the lungs and to the systemic circuit. During […]

TRUMAN, J/W; HENRY, L*; CHEA, H; RIDDIFORD, L/M; Univ. of Washington, Seattle; Friday Harbor Laboratories, Friday Harbor; Univ. of Washington, Seattle; Univ. of Washington, Seattle: Effects of Juvenile Hormone Mimics on the Embryonic Development of the Basal Insect, Thermobia domestica The evolution of the larval stage in insects is thought to have accompanied an advancement […]

DOWNER, Natalie*; LECKY, Danielle; MYRTHIL, Marie; NDUKA, Ebere; CATAPANE, Edward; Medgar Evers College; Medgar Evers College; Kingsborough Community College; Medgar Evers College; Medgar Evers College: Effects of Acute Temperature Stress on the Distribution of Biogenic Amines in the American Oyster, Crassostrea virginica Biogenic amines are neurotransmitters and hormones in animals. They are well studied in […]

HNOT, Melanie*; GILLIS, Gary B.; Mount Holyoke College; Mount Holyoke College: EMG Activity in Hindlimb Flexor Muscles During Swimming in the Toad, Bufo marinus Work on hindlimb muscle function during anuran locomotion has focused largely on major extensors of the hip, knee and ankle. A common result from this work is that these muscles are […]

FRIED, Glenn *; GROSSER, Benjamin; MAU, Christopher; BLASI, Laura; University of Illinois at Urbana-Champaign; University of Illinois at Urbana-Champaign; University of Illinois at Urbana-Champaign; The University of Central Florida: Documenting Xyloplax Using a Virtual Scanning Electron Microscope Rare samples, such as the Xyloplax specimens collected by the Field Museum in Chicago, have a limited exposure […]

YOUNG, JW*; PATEL, BA; Stony Brook University; Stony Brook University: Do differences in body mass distribution determine symmetrical gait kinematics? Previous research and theory have suggested a predictable relationship between the cranio-caudal position of the whole-body center of mass (CM), interlimb coordination and limb kinematics during symmetrical gaits. In particular, when the CM is positioned […]

DANIEL, Peter/C; Hofstra University: Do Lobsters Increase Detection of Odorants by Waving Antennules? A 3D Kinematic Analysis A major goal of chemosensory guidance research is to elucidate how animals extract information from the complex spatial and temporal structure of odorant plumes. Studies using lobsters as model organisms have examined orientation and locomotion of the whole […]

CHRISTOPHER, CATHERINE E..*; SALMON, MICHAEL; Florida Atlantic University, Boca Raton; Florida Atlantic University, Boca Raton: Do Fiddler Crab Larvae Show Phenotypic Plasticity? In fiddler crabs, larval release typically occurs at flood tide or shortly thereafter. The larvae are then transported by tidal currents out of the adult habitat, toward deeper �nursery� areas. When eggs are […]