Meeting Abstract 91.11  Thursday, Jan. 7  Bringing Lophotrochozoa into Studies of Comparative Eye Development and Eye Evolution WEVER, JM*; HENRY, JJ; NEWMARK, PA; U Illinois – Urbana; U Illinois – Urbana; U Illinois – Urbana jwever2@illinois.edu Metazoan eyes have marveled both developmental and evolutionary biologists since Darwin wrote in Origin of Species, “to suppose that the eye […]

Meeting Abstract 91.7  Thursday, Jan. 7  Axes and organs in nemertean larvae: Development of a hoplonemertean HIEBERT, Laurel/S*; MASLAKOVA, Svetlana/A; Oregon Institute of Marine Biology; Oregon Institute of Marine Biology lhiebert@uoregon.edu Nemerteans display two major modes of larval development: via a juvenile-like planuliform larva, found in the paleonemerteans and hoplonemerteans, and via the unique planktotrophic pilidium larva, […]

Meeting Abstract 91.4  Thursday, Jan. 7  Asymmetric RNA segregation as a patterning mechanism in Ilyanassa RABINOWITZ, J.S.*; LAMBERT, J.D.; University of Rochester jrabinow@mail.rochester.edu Asymmetric cell divisions are required by multicellular organisms to generate tissue diversity during early development. Spiral cleaving embryos undergo highly stereotyped divisions where large macromeres divide asymmetrically to produce several small micromeres with specified […]

Meeting Abstract 91.6  Thursday, Jan. 7  A Secondary Embryonic Axis Induced by Transplanted D-quadrant Micromeres in an Oligochaete Annelid NAKAMOTO, A.*; SHIMIZU, T.; Univ. of Arizona; Hokkaido Univ. monaka@email.arizona.edu In many animals, a specific region in the early embryo has a remarkable potential to act as an organizer. For example, the Spemann and Mangold’s organizer not only […]

Meeting Abstract 90.11  Thursday, Jan. 7  Tooth Root Surface Area as an Indicator of Bite Force SELF, CJ; University of Washington, Seattle cjself@u.washington.edu The tooth root provides attachment area for the periodontal ligament and an increase in root area may be advantageous for subsisting on harder food or having a larger bite force. The goal of this […]

Meeting Abstract 90.2  Thursday, Jan. 7  The mechanical loading environment of the jaw during ingestive and rumination chewing in goats WILLIAMS, S.H.*; SIDOTE, J.; STOVER, K.K.; DAVIS, J.S.; Ohio University, Athens; Ohio University, Athens; College of Charleston, Charleston; Ohio University, Athens willias7@ohio.edu Chewing mechanically breaks down food to facilitate chemical digestion in and passage through the digestive […]

Meeting Abstract 90.3  Thursday, Jan. 7  The Effect of Occlusion on Alveolar Bone Biomechanics in the Miniature Pig, Sus scrofa YEH, K.D.; POPOWICS, T.*; RAFFERTY, K.; HERRING, S.; University of Washington, Seattle popowics@u.washington.edu This study investigated the role of occlusion in the biomechanical properties of alveolar bone in the miniature pig, Sus scrofa. The hypothesis tested was […]

Meeting Abstract 90.6  Thursday, Jan. 7  Skull development, functional integration and feeding performance in a top North American carnivore, Canis latrans LA CROIX, S.*; ZELDITCH, M.L.; SHIVIK, J.A.; LUNDRIGAN, B.L.; HOLEKAMP, K.E.; Michigan State Univ., East Lansing; Univ. of Michigan, Ann Arbor; USDA Wildlife Services National Wildlife Research Center & Utah State University, Logan; Michigan State Univ., […]

Meeting Abstract 90.10  Thursday, Jan. 7  Scaling of bite-force performance in horned frogs, Ceratophrys LAPPIN, A.K.*; WILCOX, S.C.; California State Polytechnic Univ., Pomona; California State Polytechnic Univ., Pomona aklappin@csupomona.edu Of the nearly 6,000 extant frog species, most have weak jaws that play a minor role in prey capture. A notable exception is Ceratophrys, a genus of South […]

Meeting Abstract 90.5  Thursday, Jan. 7  Respiratory and Olfactory Turbinate Dimensions in Aquatic and Terrestrial Carnivorans VAN VALKENBURGH, Blaire*; SAMUELS, Josh/X; BIRD, Deborah; MEACHEN-SAMUELS, Julie; Univ. of California, Los Angeles; Univ. of California, Los Angeles; Univ. of California, Los Angeles; Univ. of California, Los Angeles bvanval@ucla.edu The mammalian nose contains an extensive set of scroll-like, paper-thin bones […]