Meeting Abstract 69.4 Saturday, Jan. 5 Multiplying mitochondria in the cold: how do fish do it and why? O’BRIEN, K.M.; Univ. of Alaska Fairbanks kmobrien@alaska.edu High mitochondrial densities are characteristic of oxidative muscles in cold-bodied fishes. There is a latitudinal trend in mitochondrial abundance, with Antarctic fishes displaying the highest densities. Antarctic icefishes, lacking hemoglobin, lie at […]
sessions: Session 69
Lessons from cold-adapted enzymes Can protein adaptation to temperature be simple and quick
Meeting Abstract 69.1 Saturday, Jan. 5 Lessons from cold-adapted enzymes: Can protein adaptation to temperature be simple and quick? SOMERO, GEORGE; Stanford University somero@stanford.edu Fascination with how proteins manage to work well at near-freezing temperatures has led to detailed study of enzymatic and structural proteins of Antarctic notothenioid fishes. Discovery that lactate dehydrogenase (LDH) orthologs of notothenioids […]
Evolutionary developmental biology of notothenioid fishes through the genomic looking glass
Meeting Abstract 69.3 Saturday, Jan. 5 Evolutionary developmental biology of notothenioid fishes: through the genomic looking glass DETRICH, H.W.*; YAN, Y.L.; TITUS, T.; ALLARD, C.; ALBERTSON, R.C.; POSTLETHWAIT, J.H.; Northeastern Univ., Boston; Univ. of Oregon, Eugene; Univ. of Oregon, Eugene; Northeastern Univ., Boston; Univ. of Massachusetts, Amherst; Univ. of Oregon, Eugene iceman@neu.edu Comparative genomics provides a global […]
Control of branchial artery tone in Antarctic fish
Meeting Abstract 69.5 Saturday, Jan. 5 Control of branchial artery tone in Antarctic fish EGGINTON, S; University of Birmingham, UK s.egginton@bham.ac.uk We examined potential vasomotor control mechanisms in Antarctic fishes, compared with teleosts of different phylogenetic relatedness from both cold and temperate environments. In general, vascular constrictor activity showed a modest α and β adrenergic tonus, but […]
The ups and downs of desert life Movement, habitat structure, and biomechanics of a Namib day gecko
Meeting Abstract 69.4 Monday, Jan. 6 08:45 The ups and downs of desert life: Movement, habitat structure, and biomechanics of a Namib day gecko COLLINS, CE*; RUSSELL, AP; HIGHAM, TE; University of California, Riverside; University of Calgary; University of California, Riverside clint.collins@email.ucr.edu Successful predator evasion depends on many attributes of an animal along with the structural attributes […]
The relationship between muscle cross-sectional area and locomotor performance in lizards
Meeting Abstract 69.2 Monday, Jan. 6 08:15 The relationship between muscle cross-sectional area and locomotor performance in lizards SCALES, J.A.*; BUTLER, M.A.; Univ. of Hawaii, Manoa; Univ. of Hawaii, Manoa jscales@hawaii.edu Locomotor performance is essential to the fitness of many terrestrial vertebrates. Therefore, determining what defines locomotor performance is an integral part of understanding the evolution of […]
The mechanics of elastic loading and recoil in anuran jumping
Meeting Abstract 69.5 Monday, Jan. 6 09:00 The mechanics of elastic loading and recoil in anuran jumping ASTLEY, H. C.*; ROBERTS, T. J.; Georgia Institute of Technology; Brown University henry.astley@gmail.com Many animals use catapult mechanisms to produce extremely rapid movements for escape or prey capture, resulting in power outputs far beyond the limits of muscle. In these […]
The Effect of Multiple Obstacles on the Locomotor Behavior and Performance of a Terrestrial Lizard Sceloporus woodi
Meeting Abstract 69.1 Monday, Jan. 6 08:00 The Effect of Multiple Obstacles on the Locomotor Behavior and Performance of a Terrestrial Lizard Sceloporus woodi PARKER, S.E*; MCBRAYER, L.M; Georgia Southern University; Georgia Southern University sp03499@georgiasouthern.edu The flexibility to negotiate variable terrain in three dimensionally complex environments is important for many terrestrial vertebrates. Variation in the substrate due […]
Lightening the load Effects of tail autotomy and regeneration on locomotor mechanics in the leopard gecko
Meeting Abstract 69.7 Monday, Jan. 6 09:30 Lightening the load: Effects of tail autotomy and regeneration on locomotor mechanics in the leopard gecko. JAGNANDAN, K*; HIGHAM, TE; University of California, Riverside kevin.jagnandan@email.ucr.edu Autotomy is an effective anti-predation strategy that involves the voluntary shedding of a non-vital body part in order to distract a predator and/or escape from […]
Body mass, limb length, and limb mass and their role in locomotor specializations in terrestrial and semi-terrestrial mammals
Meeting Abstract 69.6 Monday, Jan. 6 09:15 Body mass, limb length, and limb mass and their role in locomotor specializations in terrestrial and semi-terrestrial mammals KILBOURNE, BM; Friedrich-Schiller-Universität Jena brandon.kilbourne@uni-jena.de Traditionally, broader, comparative assessments of limb specializations in terrestrial and semi-terrestrial mammals have focused on osteological measurements, most notably limb proportions. However, the mass of limbs and […]
