Meeting Abstract 93.5  Sunday, Jan. 6  Estrogen Dose Influences Medullary Bone Quantity and Density in Female Pine Siskins SQUIRE, M.E. *; VEGLIA, M.K.; DRUCKER, K.A.; HAHN, T.P; WATTS, H.E.; The University of Scranton; The University of Scranton; The University of Scranton; The University of California, Davis; Loyola Marymount University maria.squire@scranton.edu Medullary bone is a non-structural type of […]

Meeting Abstract 93.3  Sunday, Jan. 6  Assessments of immuno- and inflamm-aging following a photoperiodic regime that delays female reproductive aging in Siberian hamsters PLACE, NJ*; PARK, S-U; ZYSLING, DA; Cornell University njp27@cornell.edu Aging and reproductive senescence are thoroughly intertwined, as evident by the ability of calorie restriction to both increase longevity and delay reproductive aging in a […]

Meeting Abstract 93.1  Sunday, Jan. 6  A newly identified IGFBP in crayfish: another piece in the insulin-like androgenic hormone’s puzzle? ROSEN, O.*; MANOR, R.; WEIL, S.; SAGI, A.; Ben Gurion University of the Negev; Ben Gurion University of the Negev; Ben Gurion University of the Negev; Ben Gurion University of the Negev roseno@post.bgu.ac.il In malacosracan crustaceans, male […]

Meeting Abstract 93.5  Monday, Jan. 6 14:30  Stability of cockroaches running rapidly on rigid rods HUNT, N/H*; MOON, H/S; HAMMOND, A; BURNETT, N/P; PRITCHARD-BERMAN, M; FULL, R/J; University of California, Berkeley; University of California, Berkeley; University of California, Berkeley; University of California, Berkeley; University of California, Berkeley; University of California, Berkeley nathaniel.hunt@berkeley.edu Running on branches or rods […]

Meeting Abstract 93.8  Monday, Jan. 6 15:15  Prehensile tail use in didelphid marsupials: functional modifications for terrestrial species RUPERT, JE*; BUTCHER, MT; Indiana University School of Medicine; Youngstown State University jerupert@iupui.edu Locomotor behavior has largely been studied through analyses of limb kinematics, gait mechanics, and muscle architecture and fiber type. Evaluating these characteristics in extant mammals is […]

Meeting Abstract 93.1  Monday, Jan. 6 13:30  Optimization for models of legged locomotion: parameter estimation, gait synthesis, and experiment design BURDEN, SA*; SASTRY, SS; FULL, RJ; Univ. of California, Berkeley samaburden@gmail.com Optimization theory provides a powerful framework for the study of organismal biomechanics that enables: estimation of uncertain model parameters or exogenous inputs using empirical data; synthesis […]

Meeting Abstract 93.7  Monday, Jan. 6 15:00  Modulation of strain magnitude in the limb bones of tetrapods AIELLO, B.R.*; IRIARTE-DIAZ, J.; BLOB, R.W.; BUTCHER, M.T.; ESPINOZA, N.R.; MAIN, R.P; ROSS, C.F.; Univ. of Chicago; Univ. of Chicago; Clemson Univ.; Youngstown State Univ.; Clemson Univ.; Purdue Univ.; Univ. of Chicago braiello@uchicago.edu Variation in bone strain magnitude can be […]

Meeting Abstract 93.2  Monday, Jan. 6 13:45  Insects traversing grass-like vertically compliant beams LI, C*; FULL, R.J.; Univ. of California, Berkeley; Univ. of California, Berkeley chen.li@berkeley.edu Small running animals encounter more challenging terrains than larger ones. These terrains can be filled with three-dimensional, multi-component obstacles. Here, we study cockroaches (Blaberus discoidalis) moving through grass-like, vertically compliant beams […]

Meeting Abstract 93.6  Monday, Jan. 6 14:45  Ground reaction forces during rapid escape turns in lizards. LIBBY, T.*; HWANG, M.; KOH, M.; XIE, B.; FULL, R.J.; Univ. of California, Berkeley tlibby@berkeley.edu Body bending and appendage swinging can enhance maneuverability by exchanging angular momentum between body segments, allowing an animal to change direction even in the absence of […]

Meeting Abstract 93.4  Monday, Jan. 6 14:15  Effect of moisture content on burrowing performance of ghost crabs SPRINGTHORPE, D*; NG, P; FULL, R.J.; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley dspringthorpe@berkeley.edu Prior work demonstrated that ghost crabs (Ocypode quadrata) build semi-permanent burrows in a relatively uniform substrate using a complex behavioral suite […]