Meeting Abstract 27.3  Friday, Jan. 4  Polyandrous female house wrens increase the size, but not immunocompetence, of their extra-pair young FORSMAN, AM*; VOGEL, LA; SAKALUK, SK; JOHNSON, LS; MASTERS, BS; JOHNSON, BG; THOMPSON, CF; Cornell University; Illinois State University; Illinois State University; Towson University; Towson University; Towson University; Illinois State University amf226@cornell.edu Extra-pair fertilizations (EPFs) occur in […]

Meeting Abstract 27.8  Friday, Jan. 4  How do hormones, performance, sexual signals, and behavior interact to predict dominance in brown anoles? MINER, S.V.*; MEYERS, J.J.; HUSAK, J.F.; IRSCHICK, D.J.; Univ. of Massachusetts, Amherst; Univ. of Massachusetts, Amherst; Univ. of Massachusetts, Amherst; Univ. of Massachusetts, Amherst simon@bittennails.com Males of many species utilize elaborate secondary sex characteristics and behaviors […]

Meeting Abstract 27.5  Friday, Jan. 4  Do androgens mediate seasonal changes in sexual signal size and bite-force performance in green anoles (Anolis carolinensis)? HENNINGSEN, JP*; HUSAK, JF; IRSCHICK, DJ; University of Massachusetts Amherst; University of Massachusetts Amherst and Virginia Tech; University of Massachusetts Amherst justinh@bio.umass.edu Sexually dimorphic structures are common in nature and often play an important […]

Meeting Abstract 27.6  Friday, Jan. 4  Disentangling sperm speed from sperm length HUMPHRIES, S.**; EVANS, J.P.; SIMMONS, L.W.; University of Sheffield; University of Western Australia; University of Western Australia s.humphries@sheffield.ac.uk Sperm competition is a form of post-copulatory sexual selection that has implications across a wide range of biology. Sperm length is often used as a proxy for […]

Meeting Abstract 27.1  Friday, Jan. 4  Assessing the potential for sexual conflict in the fiddler crab Uca princeps HANEY, B. R.*; POPE, D. S.; Trinity University; Trinity University brian.haney@trinity.edu In fiddler crabs, the two most common mating tactics are burrow mating, in which males attract females into the male burrow by claw waving, and surface mating, in […]

Meeting Abstract 26.3  Friday, Jan. 4  Sensory feedback loops in lamprey swimming TYTELL, E.D.*; COHEN, A.H.; Univ. of Maryland, College Park; Univ. of Maryland, College Park tytell@umd.edu In fishes, undulatory swimming is produced by sets of spinal interneurons constituting a central pattern generator (CPG). The CPG can produce the basic pattern for locomotion in the absence of […]

Meeting Abstract 26.2  Friday, Jan. 4  Multiple inputs mediate multiple outputs for flight control in Manduca sexta. HINTERWIRTH, Armin J*; DANIEL, Thomas L; University of Washington ahinterw@u.washington.edu The astounding aerodynamic ability of insects hinges upon the integration of multiple sensory modalities and upon motor outputs that drive multiple actuators (wings and abdominal motions correlate with sensory input). […]

Meeting Abstract 26.1  Friday, Jan. 4  Identification and characterization of chemoreceptive sensilla on the antennal flagellum of Palaemonetes pugio CASKEY, Jodi L*; WATSON, Glen M; University of Louisiana at Lafayette; University of Louisiana at Lafayette shrimpgirl@louisiana.edu Innervated structures (sensilla) on the external cuticle provide crustaceans with information about their external chemical environment. The antennules of crustaceans are […]

Meeting Abstract 26.4  Friday, Jan. 4  Genomic and gene regulatory signatures of cryptozoic adaptation in the red flour beetle Tribolium castaneum FRIEDRICH, Markus*; BAO, Riyue ; JACKOWSKA, Magdalena; LIU, Zhenyi; Wayne State University friedrichm@wayne.edu The many ways in which cryptozoic animals adapted to the light deprived biota of crevices, caverns, and caves arguably count as prime manifestations […]

Meeting Abstract 26.5  Friday, Jan. 4  Encoding characteristics of haltere mechanoreceptors FOX, J.L.*; DANIEL, T.L.; University of Washington; University of Washington jessfox@u.washington.edu Controlled dipteran flight requires rapid acquisition of mechanosensory information provided by gyroscopic structures known as halteres. Halteres are modified hindwings that experience gyroscopic torques resulting from Coriolis forces that arise during body rotations. Although biomechanical […]