Meeting Abstract 12-4  Saturday, Jan. 4 11:00 – 11:15  How to investigate the origins of novelty: insights gained from ecology, genomics, function, and fitness landscapes MARTIN, CM; University of California, Berkeley chmartin@berkeley.edu http://ib.berkeley.edu/labs/martin/ Biologists are drawn to the most extraordinary adaptations in the natural world, i.e. evolutionary novelties, yet rarely do we understand the microevolutionary processes underlying […]

Meeting Abstract 12-6  Saturday, Jan. 4 11:30 – 11:45  Evidence for an African Cave Lion (Panthera sp): Multiple Panthera individuals from Bridge Cave, Bolt’s Farm, South Africa KUHN, BF*; SALESA, MJ; MAURICIO, A; ARGANT, A; RANDOPH-QUINNEY, P; KGASI, L; GOMMERY, D; University of Johannesburg, South Africa; Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, Madrid, Spain; Departamento […]

Meeting Abstract 12-2  Saturday, Jan. 4 10:45 – 11:00  Ecological divergence in the sponge genus Ircinia KELLY, JB*; THACKER, RW; Stony Brook University, Stony Brook, NY; Stony Brook University, Stony Brook, NY joseph.b.kelly@stonybrook.edu Microbiomes can have substantial impacts on the ecological identities and evolutionary histories of their hosts. In the sponge genus Ircinia, evolutionary responses to host-microbial […]

LIKNES, E.T.*; SWANSON, D.L.: Seasonal Metabolic Acclimatization in the American Goldfinch Revisited: To What Extent Does Summit Metabolism Vary Seasonally? Large seasonal changes in summit metabolic rate (Msum) have been considered only a minor component of winter acclimatization in small birds. This conclusion is based largely on data from Cardueline finches, including American Goldfinches. Recent […]

MEAGHER, E.*; PABST, D.A.; MCLELLAN, W.; WESTGATE, A.; WELLS, R.: Heart rate, respiration and heat flux across the dorsal fin in wild bottlenose dolphins, Tursiops truncatus The dolphin dorsal fin is a thermal window, invested with blood vessels that function to conserve or dissipate body heat depending on thermoregulatory demands. Heat flux, measured at a […]

KROCHMAL, A.R.*; BAKKEN, G.S.: Evidence for the Use of Facial Pits for Behavioral Thermoregulation In the Western Diamondback Rattlesnakes (Crotalus atrox) Pit vipers (Crotalinae) possess unique organs, called facial pits, which can detect subtle fluctuations in emitted thermal radiation. Facial pits are used for prey location and strike direction, demonstrating that pit vipers can incorporate […]

O’Connor, M.P.*; Zimmerman, L.C.; Spotila, J.R.: Effects of behavior, physiology, and habitat on thermoregulation in desert tortoises. Desert tortoises are herbivorous ectothermic denizens of the Mojave and Sonoran deserts whose thermal ecology constrains activity and resource acquisition on both seasonal and daily time scales. We used behavioral observations of individual tortoises with temperature sensitive telemeters, […]

Helmuth, B.*; Hofmann, G.E.: Defining thermal stress in the rocky intertidal: linking ecology and physiology through biophysics Thermal stress is thought to be an important determinant of organismal distribution, abundance, and productivity in the rocky intertidal zone. Yet, we know surprisingly little of how body temperatures change in space and time, and of how these […]

MCBRAYER, L.D.*; REILLY, S.M.: Testing amniote models of prey transport kinematics: a quantitative analysis of mouth opening patterns in lizards Two models have been proposed to describe the prey transport kinematics of terrestrial vertebrates (Bramble and Wake, 1985; Reilly and Lauder, 1990). The critical difference between the models is the presence or absence of a […]

LADUC, T. J.; DUDLEY, R.: Striking differences between six species of rattlesnakes? A comparative study into body size effects on the predatory strike of rattlesnakes The selective forces on ontogenetic scaling relationships within species may differ from the forces shaping allometric relationships among species. However, cranial measurements from a diverse assemblage of taxa suggest that […]