Meeting Abstract 82.6  Tuesday, Jan. 6 11:30  Evaluation of species-specific ontogenetic trajectories for craniofacial morphologies in Lake Malawi cichlids POWDER, KE*; ALBERTSON, RC; UMass Amherst; UMass Amherst kepowder@bio.umass.edu East African cichlids exhibit one of the most impressive adaptive radiations, and pivotal to this are species-specific craniofacial structures that allow ecological specialization. In order to understand the developmental […]

Meeting Abstract 82.7  Tuesday, Jan. 6 11:45  Characterizing the Unique Extracellular Matrix of Bat Wing Bones BALL, H; CLEMENTZ, M; VINYARD, C; SAFADI , F; COOPER, LN*; NEOMED, Rootstown, OH; Univ. of Wyoming, Laramie; NEOMED, Rootstown, OH; NEOMED, Rootstown, OH; NEOMED, Rootstown, OH l.noelle.cooper@gmail.com Among mammals, the wing bones of extant bats are unusually resistant to fracture. […]

Meeting Abstract 82.4  Tuesday, Jan. 6 11:00  A gene expression map of the larval Xenopus laevis head reveals developmental changes underlying the evolution of new skeletal elements in vertebrates SQUARE, T*; JANDZIK, D; MEDEIROS, D.M.; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, U.S.A.; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder; Department […]

Meeting Abstract 82-2  Wednesday, Jan. 6 10:30  The role of roll: rapid collision avoidance in cluttered aerial environments GRAVISH, N*; MOUNTCASTLE, A.M.; CRALL, J.D.; WOOD, R.J.; COMBES, S.A.; Harvard University; Harvard University; Harvard University; Harvard University; Univ. of California, Davis gravish@seas.harvard.edu http://people.seas.harvard.edu/~gravish/ Foraging flight of bumblebees (Bombus impatiens) requires stable, coordinated movement in complex aerial environments. Through […]

Meeting Abstract 82-4  Wednesday, Jan. 6 11:00  Symmetric aerodynamic power in hovering hummingbirds requires extreme muscle output INGERSOLL, R.*; LENTINK, D.; Stanford University; Stanford University riversi@stanford.edu Hummingbirds have the unique ability to continuously hover, which aerodynamically distinguishes them from other birds. The near kinematic symmetry between the upstroke and downstroke allows hummingbirds to generate aerodynamic lift force […]

Meeting Abstract 82-3  Wednesday, Jan. 6 10:45  Hummingbirds control turning velocity with body orientation and turning radius with asymmetrical wingbeat kinematics READ, T.J.G.*; SEGRE, P.S.; MIDDLETON, K.M.; ALTSHULER, D.L.; University of British Columbia, Vancouver; University of British Columbia, Vancouver; University of Missouri; University of British Columbia, Vancouver read@zoology.ubc.ca Turning in flight requires reorientation of force, which birds, […]

Meeting Abstract 82-1  Wednesday, Jan. 6 10:15  Dynamics of roll control in hummingbirds RAVI, S*; NODA, R; KONOW, N; BIEWENER, A; COMBES, S; LIU, H; Chiba University/RMIT University; Hong Kong University of Science and Technology; Brown University; Harvard University; Harvard University; Chiba University sridhar.ravi@rmit.edu.au Airflow conditions close to the Earth’s surface are often complex, posing challenges to […]

Meeting Abstract 82-5  Wednesday, Jan. 6 11:15  Biomechanical consequences of asymmetric wingtip deficits in Anna’s Hummingbird (Calypte anna) SAPIR, N.*; WOLF, M.; ORTEGA-JIMENEZ, V.M.; DUDLEY, R.; Univ. of Haifa; Lund Univ.; Univ. of California, Berkeley; Univ. of California, Berkeley nsapir1@univ.haifa.ac.il http://sciences.haifa.ac.il/new/faculty/nirsapir/ Wings are the primary aerodynamic surface for volant taxa, but the consequences of wing degradation for […]

Meeting Abstract 82-6  Wednesday, Jan. 6 11:30  Behavioral compensation for decreased air density in turkey vultures RADER, J.A.*; HEDRICK, T.L.; University of North Carolina at Chapel Hill; University of North Carolina at Chapel Hill jrader@live.unc.edu The breadth of environmental conditions that species tolerate and exploit may, in large part, determine their geographic extent. Intuitively, species that can […]

Meeting Abstract 82-7  Saturday, Jan. 7 09:30 – 09:45  Visual and Mechanosensory Integration by Descending Interneurons in Hawkmoths MOHAN, U*; MAITRI, M; SANE, S P; National Centre for Biological Sciences, TIFR, India; National Centre for Biological Sciences, TIFR, India; National Centre for Biological Sciences, TIFR, India umeshm@ncbs.res.in Flying insects use sensory cues from multiple modalities to control […]