Meeting Abstract 75.1  Tuesday, Jan. 6  Biophysical factors affecting gas exchange in sea turtle nests O’CONNOR, M.P.*; HONARVAR, S.; SOTHERLAND, P.R.; SPOTILA, J.R.; Drexel Univ.; Drexel Univ.; Kalamazoo Coll.; Drexel Univ. mike.oconnor@drexel.edu The sandy environment of developing sea turtle eggs creates a significant resistance to both diffusive and convective exchanges of respiratory gases. Data suggest that the […]

Meeting Abstract 75.4  Tuesday, Jan. 6  Avian seasonal metabolic adjustments in a southern subtropical desert: winter down-regulation of basal metabolic rate SMIT, B.; MCKECHNIE, A.E.*; Univ. of Pretoria; Univ. of Pretoria aemckechnie@zoology.up.ac.za One of the major patterns of phenotypic flexibility in avian basal metabolic rate (BMR) consists of seasonal adjustments. At present, the vast majority of data […]

Meeting Abstract 75.6  Tuesday, Jan. 6  Allometric scaling of whole colony metabolic rate in Pogonomyrmex californicus WATERS, James S.*; HOLBROOK, C. Tate; FEWELL, Jennifer H.; HARRISON, Jon F.; Arizona State University, Tempe; Arizona State University, Tempe; Arizona State University, Tempe; Arizona State University, Tempe james.waters@asu.edu Across all the kingdoms of living organisms and a vast range of […]

Meeting Abstract 74.5  Tuesday, Jan. 6  The Evolution of Unguligrady and Forefoot Mechanics in Even-Toed Ungulates CLIFFORD, Andrew/B; Brown University andrew_clifford@brown.edu Most extant even-toed ungulates adopt an unguligrade foot posture whereby body weight is supported through hoofed distal phalanges. This foot posture is derived from a petadactyl and digitigrade foot comparable to extant canids. The digitigrade-unguligrade transition […]

Meeting Abstract 74.2  Tuesday, Jan. 6  Primitive, Protected and Pendullar: Locomotor Dynamics of Echidnas and Hedgehogs BIKNEVICIUS, A.R.*; MCELROY, E.J.; JOHNSON, S.D. ; BENNETT, M.B. ; REILLY, S.M. ; Ohio University College of Osteopathic Medicine, Athens; College of Charleston, South Carolina; University of Queensland, Gatton, Australia; University of Queensland, Brisbane, Australia; Ohio University, Athens biknevic@ohio.edu When small […]

Meeting Abstract 74.6  Tuesday, Jan. 6  Mechanical Differences between Trotting and Galloping in Quadrupeds ROS, Ivo G*; BIEWENER, Andrew A; LEE, David V; ANTONEN, Jennifer; HIGGINS, Trevor; Harvard U.; Harvard U.; UNLV; Harvard U.; Harvard U. ivo.ros@gmail.com It is generally believed that quadrupeds transition from a trot to a gallop to reduce peak forces and galloping is […]

Meeting Abstract 74.4  Tuesday, Jan. 6  Maximizing power and efficiency from a limb during cyclic contractions WAKELING, James M*; BLAKE, Ollie; Simon Fraser University; Simon Fraser University wakeling@sfu.ca Maximizing the power output from a muscle, from the single fibre to the whole belly level, involves: (a) maximizing the level of activation (mainly during the concentric phase) with […]

Meeting Abstract 74.3  Tuesday, Jan. 6  Ground Reaction Force and Center of Mass Dynamics of Goats and Dogs during Trotting and Galloping. BIEWENER, A A*; ROS, I; LEE, D V; ANTONNEN, J; HIGGINS, T; Harvard University; Harvard University; UNLV; Harvard University; Harvard University abiewener@oeb.harvard.edu How does the center of pressure (CoP) resulting from distributed limb ground reaction […]

Meeting Abstract 74.1  Tuesday, Jan. 6  An inverted pendulum model for underwater walking ELLERS, O*; YOSHIMURA, K; MOTOKAWA, T; JOHNSON, A.S.; Bowdoin College, Maine; Tokyo Institute of Technology; Tokyo Institute of Technology; Bowdoin College, Maine olafellers@suscom-maine.net The inverted pendulum is a common model for terrestrial locomotion but a corresponding model for underwater walking has not been explicitly […]

Meeting Abstract 73.3  Tuesday, Jan. 6  Up, up, and away! The jump of the amphipod Apohyale pugettensis EVANGELISTA, Dennis J.; Univ. of California, Berkeley devangel@berkeley.edu Kinematics of an intertidal amphipod (Apohyale pugettensis) jumping in air were obtained with high speed video and analyzed for jump distance, energy and power requirements. A. pugettensis launched itself with a muzzle […]