Meeting Abstract 99-2  Saturday, Jan. 6 13:45 – 14:00  Courtship display dynamics and iridescent structural color in peacocks and related ocellated pheasant species KANE, S.A.*; DAKIN, R.; LU, Y.; FANG, R.; Haverford College; Smithsonian Conservation Biology Institute; Haverford College; Haverford College samador@haverford.edu http://ww3.haverford.edu/physics/Amador/ Peacocks court females by tilting a fan-like array of feathers decorated with multicolored eyespots […]

Meeting Abstract 99-6  Saturday, Jan. 6 14:45 – 15:00  Circadian Clock Proteins in the Nudibranch Mollusks Hermissenda crassicornis, Melibe leonina, and Tritonia diomedea. COOK, GM*; GRUEN, AE; MORRIS, J; PANKEY, MS; SENATORE, A; KATZ, PS; WATSON, WH; NEWCOMB, JM; New England College, Henniker, NH; University of New Hampshire, Durham; New England College, Henniker, NH; University of New […]

Meeting Abstract 99-2  Sunday, Jan. 6 13:45 – 14:00  X-Ray Diffraction Resolves how Lattice Spacing Explains the Workloop Differences of Two Muscles with Identical Steady State Properties TUNE, T*; IRVING, T; SPONBERG, S; Georgia Tech; Illinois Tech; Georgia Tech ttune3@gatech.edu Muscle is energetically versatile, achieving widely varying work outputs depending on the task. Many steady state measurements […]

Meeting Abstract 99-3  Sunday, Jan. 6 14:00 – 14:15  Tell-Tale Hearts and the Descent into Cardiac Chaos HERNDON, CJ*; FENTON, FH; Georgia Institute of Technology; Georgia Institute of Technology co.herndon@gmail.com Proper contraction of cardiac muscle relies on the coordinated propagation of transmembrane voltage, and disturbances of this propagation can result in deadly cardiac arrhythmias such as fibrillation, […]

Meeting Abstract 99-6  Sunday, Jan. 6 14:45 – 15:00  Skeletal Satellite Cell Myogenic Activity in Hibernating American Black Bears MESA CRUZ, B*; RHOADS, R; ZHAO, L; KROSCHER, K; BROWN, J; KELLY, M; Elizabethtown College and Virginia Tech; Virginia Tech; Virginia Tech; Virginia Tech; Smithsonian Institution; Virginia Tech mesab@etown.edu Bears are able to limit muscle atrophy during hibernation, […]

Meeting Abstract 99-4  Sunday, Jan. 6 14:15 – 14:30  Regional thermal specialization in bat wing muscles: a proximal–distal temperature and thermal sensitivity gradient RUMMEL, AD*; SWARTZ, SM; MARSH, RL; Brown University andrea_rummel@brown.edu As nocturnal fliers, bats must maintain a rapid wingbeat frequency in the face of thermal conditions that likely result in net heat loss from their […]

Meeting Abstract 99-7  Sunday, Jan. 6 15:00 – 15:15  Physiological Development of Locomotor Muscles Influence Diving Capacities in Free-Ranging Bearded Seals TENGLER, M*; BRYAN, A; REICHMUTH, C; THOMETZ, NM; University of San Francisco; Alaska Department of Fish and Game; University of California, Santa Cruz; University of San Francisco mtengler@usfca.edu Seals must store and efficiently use oxygen while […]

Meeting Abstract 99-5  Sunday, Jan. 6 14:30 – 14:45  In-vivo x-ray diffraction imaging of a synchronous flight muscle reveals thick filament stretching as a function of activation MALINGEN, SA*; CASS, JA; POWERS, JD; MA, W; IRVING, T; DANIEL, TL; University of Washington, Seattle; University of Washington, Seattle; University of Washington, Seattle; Illinois Institute of Technology, Chicago; Illinois […]

Meeting Abstract 99-1  Sunday, Jan. 6 13:30 – 13:45  Fiber-type profile of Atlantic spotted dolphin (Stenella frontalis) diaphragm DRAUD*, S.L.*; DEAROLF, J.L.; Hendrix College, Conway, AR draudss@hendrix.edu Swimming on a breathhold is known to decouple ventilation and locomotion in cetaceans (whales, dolphins, and porpoises). However, the mechanisms underlying this unique behavior are not fully understood. The fiber-type […]