Meeting Abstract 43.4 Wednesday, Jan. 5 The influence of fossoriality on cranial architecture in caecilian amphibians (Gymnophiona) MADDIN, H.C.*; WAKE, M.H.; KRISTENSEN, E.; Univ. of Calgary; Univ. of California, Berkeley; Univ. of Calgary hcmaddin@ucalgary.ca Fossoriality, wherein the head is employed as the primary locomotor organ (i.e., head-first burrowing), has evolved multiple times independently within Tetrapoda. Among these, […]
sessions: Session 43
Snail versus crab the biomechanics and evolution of shell ornamentation in Strombus
Meeting Abstract 43.1 Wednesday, Jan. 5 Snail versus crab: the biomechanics and evolution of shell ornamentation in Strombus WHITENACK, Lisa B*; HERBERT, Gregory S; SIMKINS, JR., Daniel C; Allegheny College; Univ. of South Florida; Univ. of South Florida lwhitena@allegheny.edu The hypothesis of escalation identifies biological hazards, particularly enemies, as the major driver of evolution for most species […]
Phylogenetics, evolution, and development of ruminant cranial appendages insights into hypotheses of homology
Meeting Abstract 43.6 Wednesday, Jan. 5 Phylogenetics, evolution, and development of ruminant cranial appendages: insights into hypotheses of homology BRAKORA, K.A.*; DAVIS, E.B.; LEE, A.H.; Department of Integrative Biology, University of California, Berkeley; Museum of Natural and Cultural History, and Department of Geology, University of Oregon; Department of Anatomy, Midwestern University kbrakora@berkeley.edu Recent revisions of ruminant phylogeny […]
Morphological Integration of the Turtle Shell
Meeting Abstract 43.2 Wednesday, Jan. 5 Morphological Integration of the Turtle Shell MELSTROM, K. M.*; ANGIELCZYK, K. D.; University of Michigan; Field Museum kmelstro@umich.edu The turtle shell is one of the most distinctive evolutionary novelties among tetrapods, but there is significant variation in shell morphology and function. In particular, previous research has demonstrated that the presence of […]
Craniodental specialization in notosuchian Crocodyliformes Linking morphology with ecology during the Cretaceous Period
Meeting Abstract 43.3 Wednesday, Jan. 5 Craniodental specialization in notosuchian Crocodyliformes: Linking morphology with ecology during the Cretaceous Period OCONNOR, P.M.*; SERTICH, J.J.W.; STEVENS, N.J.; Ohio Univ; Stony Brook Univ; Ohio Univ oconnorp@ohio.edu Notosuchian crocodyliforms recovered from Cretaceous-age deposits have revealed a level of craniodental diversity not exhibited in extant Crocodylia. Tooth crowns ranging in shape from […]
Cats and Dogs in 3D A Quantitative Study of Canid and Felid Frontal Sinuses using CT technology
Meeting Abstract 43.5 Wednesday, Jan. 5 Cats and Dogs in 3D: A Quantitative Study of Canid and Felid Frontal Sinuses using CT technology CURTIS, Abigail A.*; VAN VALKENBURGH, Blaire; Univ. of California, Los Angeles; Univ. of California, Los Angeles abigailacurtis@gmail.com Located within the frontal bone, hollow cavities known as frontal sinuses are among the least studied components […]
Y-axis orientation in South American freshwater snails (Chilina spp)
Meeting Abstract 43.10 Thursday, Jan. 5 Y-axis orientation in South American freshwater snails (Chilina spp.) LANDLER, Lukas*; VON OHEIMB, Parm V; Virginia Tech, USA, Blacksburg and Natural History Museum of Vienna, Austria; Department of Animal Ecology and Systematics, Germany, Gießen lukasl@vt.edu Y-axis orientation, defined here as movement perpendicular to the shore- or coastline, enables aquatic animals to […]
Vision-based altitude control in freely flying Drosophila
Meeting Abstract 43.4 Thursday, Jan. 5 Vision-based altitude control in freely flying Drosophila ZABALA, F.A.*; DICKINSON, M.H.; Univ. of Washington zabala@caltech.edu Insects are thought to achieve robust flight stability through the implementation of rapid sensory-motor reflexes. Specialized interneurons within their visual system detect unintended rotations and translations during flight and convey that information to motor circuits that […]
Rock and Roll – how do flies recover from aerial stumbles
Meeting Abstract 43.7 Thursday, Jan. 5 Rock and Roll – how do flies recover from aerial stumbles? BEATUS, T.*; RISTROPH, L.G.; MOROZOVA, S.; IAMS, S.M.; WANG, Z.J.; GUCKENHEIMER, J.M.; COHEN, I.; Cornell University; Cornell University; Cornell University; Cornell University; Cornell University; Cornell University; Cornell University tb343@cornell.edu Flying insects manage to maintain aerodynamic stability despite the facts that […]
Phase Inversion in Neural Activity of the Sensory Systems but not the Putative Biological Clock Parallels Behavioral Shift during Migration in a Night-Migratory Songbird
Meeting Abstract 43.6 Thursday, Jan. 5 Phase Inversion in Neural Activity of the Sensory Systems but not the Putative Biological Clock Parallels Behavioral Shift during Migration in a Night-Migratory Songbird RASTOGI, A.; RANI, S.; KUMAR, V.*; University of Lucknow; University of Lucknow; University of Delhi drvkumar11@yahoo.com The present study investigated neural activity in relation to photoperiodic induction […]
