Meeting Abstract 138-8  Monday, Jan. 7 15:30 – 15:45  Quantifying the flight stability of free-gliding birds of prey DURSTON, N/E*; WINDSOR, S/P; University of Bristol; University of Bristol; University of Bristol; University of Bristol Nick.Durston@bristol.ac.uk http://www.bristol.ac.uk/engineering/people/nick-e-durston/index.html Birds adopt a variety of wing and tail configurations during gliding flight, yet it is currently unclear whether these configurations are […]

Meeting Abstract 138-1  Monday, Jan. 7 13:30 – 13:45  Muscles, 3D Wing Shape, and Aerodynamic Forces in Bird Flight DEETJEN, M. E.*; CHIN, D. D.; TOBALSKE, B. W.; LENTINK, D.; Stanford University; Stanford University; University of Montana; Stanford University mdeetjen@stanford.edu Whereas the majority of terrestrial and aquatic locomotion involves complex muscle interactions such that no one muscle […]

Meeting Abstract 138-2  Monday, Jan. 7 13:45 – 14:00  Morpho-functional trade-off between physiology and flying ability in birds PAGÈS, F*; FABRE, AC; HERREL, A; ABOURACHID, A; Muséum National d’Histoire Naturelle, Paris; National History Museum, London; Muséum National d’Histoire Naturelle, Paris; Muséum National d’Histoire Naturelle, Paris fanny.pages@mnhn.fr The hoatzin (Opisthocomus hoazin) is one of the only strictly folivorous […]

Meeting Abstract 138-4  Monday, Jan. 7 14:15 – 14:30  Measurement of Flexural Stiffness of Hummingbirds’ Feathers and Its Aerodynamic Effect in Hovering TANAKA, H*; KAWAHARA, A; AIZAWA, M; YAMASAKI, T; Tokyo Institute of Technology; Tokyo Institute of Technology; Tokyo Institute of Technology; Yamashina Institute for Ornithology tanaka.h.cb@m.titech.ac.jp http://www.tanakah.mech.e.titech.ac.jp/index_e.html Hovering hummingbirds generate aerodynamic lift during both downstroke and […]

Meeting Abstract 138-5  Monday, Jan. 7 14:30 – 14:45  Energy Saving Flight Strategies of Urban Gulls WILLIAMSON, CJ*; SPELT, A; WINDSOR, SP; University of Bristol, UK; University of Bristol, UK; University of Bristol, UK cara.williamson@bristol.ac.uk http://www.bristol.ac.uk/aerodynamics-research/research-projects/bif/research/urban_gull/ The city is a complex environment to navigate as a bird; the wind interacts with buildings and other urban infrastructure to […]

Meeting Abstract 138-6  Monday, Jan. 7 14:45 – 15:00  Dark or Bright for a Faster Flight? The Thermal Impacts of Wing Coloration on Flight Performance ROGALLA, S*; SHAWKEY, MD; D’ALBA, L; Ghent University; Ghent University; Ghent University svana.rogalla@ugent.be Flight performance is a critical aspect of avian biology. However, few studies have yet addressed the impacts of wing […]

Meeting Abstract 138-7  Monday, Jan. 7 15:00 – 15:15  Avian locomotion strategies during arboreal foraging CHIN, DD*; LENTINK, D; Stanford University; Stanford University ddchin@stanford.edu Arboreal birds frequently hop and fly among tree branches to search for food. In the process, they must maneuver around intervening leaves or branches that obstruct flight paths between reliable perches. To understand […]

Meeting Abstract 137-2  Monday, Jan. 7 13:45 – 14:00  To be or not to be homologous: Evolution of cell type identity of the echinoderm larval skeletogenic cell ERKENBRACK, EM*; THOMPSON, JR; Yale University; University of Southern California eric.erkenbrack@yale.edu http://embryos-and-evolution.com Cell types have diversified prodigiously since the dawn of multicellularity. During development, cell types are specified by cohorts […]

Meeting Abstract 137-4  Monday, Jan. 7 14:15 – 14:30  The Shape of Weaver: The Evolution of Carapace Shape Disparity in Orb-Weaving Spiders (Arachnida: Araneae: Araneidae) KALLAL, RJ*; MOORE, AJ; HORMIGA, G; The George Washington University; Stony Brook University; The George Washington University bobkallal@gmail.com Orb-weaving spiders have long been recognized to show substantial variation in body size, both […]

Meeting Abstract 137-1  Monday, Jan. 7 13:30 – 13:45  Sponges: Degenerate Form or Ancestral State? SPILLANE, JL*; LESSER, MM; MACMANES, MD; PLACHETZKI, DC; University of New Hampshire; University of New Hampshire; University of New Hampshire; University of New Hampshire jlh1023@wildcats.unh.edu The ability of organisms to co-opt genes for new purposes, or to neofunctionalize gene duplicates, is a […]