Browsing Biology Faculty Research, Publications and Presentations by Title

Now showing items 123-142 of 185

  • Pacific Salmon in Hot Water: Applying Aerobic Scope Models and Biotelemetry to Predict the Success of Spawning Migrations 

    Farrell, A. P., S. G. Hinch, S. J. Cooke, DA Patterson, et al. 2008. "Pacific Salmon in Hot Water: Applying Aerobic Scope Models and Biotelemetry to Predict the Success of Spawning Migrations." Physiological and Biochemical Zoology 81(6): 697-708. doi:10.1086/592057
    Concern over global climate change is widespread, but quantifying relationships between temperature change and animal fitness has been a challenge for scientists. Our approach to this challenge was to study migratory ...

  • Patch Dynamics of a Phytophagous Mite Population Effect of Number of Subpopulations 

    Walde, S. J.. 1991. "Patch Dynamics of a Phytophagous Mite Population Effect of Number of Subpopulations." Ecology (Washington D C) 72(5): 1591-1598.
    I conducted a field test of the hypothesis that the dynamics of a predator-prey interaction should be affected by the number of interacting subpopulations within an assemblage. I used a "successful" biological control ...

  • Phylogenomic analysis of natural selection pressure in Streptococcus genomes 

    Anisimova, Maria, Joseph Bielawski, Katherine Dunn, and Ziheng Yang. 2007. "Phylogenomic analysis of natural selection pressure in Streptococcus genomes." Bmc Evolutionary Biology 7: 154-154.
    Background: In comparative analyses of bacterial pathogens, it has been common practice to discriminate between two types of genes: (i) those shared by pathogens and their non-pathogenic relatives (core genes), and (ii) ...

  • Physical and biological factors influencing mussel (Mytilus trossulus, M. edulis) settlement on a wave-exposed rocky shore 

    Hunt, Heather L., and Robert E. Scheibling. 1996. "Physical and biological factors influencing mussel (Mytilus trossulus, M. edulis) settlement on a wave-exposed rocky shore." Marine Ecology Progress Series 142(1-3): 135-145. doi:10.3354/meps142135
    Settlement rates of mussels Mytilus trossulus and M. edulis on artificial collectors (aquarium filter wool) and natural substrata were measured in tidepools and on emergent rock in recently ice-scoured and non-scoured ...

  • Polar Bear Diets and Arctic Marine Food Webs: Insights from Fatty Acid Analysis 

    Thiemann, Gregory W., Sara J. Iverson, and Ian Stirling. 2008. "Polar Bear Diets and Arctic Marine Food Webs: Insights from Fatty Acid Analysis." Ecological Monographs 78(4): 591-613. Copyright by the Ecological Society of America
    We used quantitative fatty acid signature analysis (QFASA) to examine the diets of 1738 individual polar bears (Ursus maritimus) sampled across the Canadian Arctic over a 30-year span. Polar bear foraging varied over ...

  • Pollen limitation of plant reproduction: Ecological and evolutionary causes and consequences 

    Ashman, TL, TM Knight, JA Steets, P. Amarasekare, et al. 2004. "Pollen limitation of plant reproduction: Ecological and evolutionary causes and consequences." Ecology 85(9): 2408-2421. Copyright by the Ecological Society of America.
    Determining whether seed production is pollen limited has been an area of intensive empirical study over the last two decades. Yet current evidence does not allow satisfactory assessment of the causes or consequences of ...

  • Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range 

    Dickerson, Bobette R., Rolf R. Ream, Sacha N. Vignieri, and Paul Bentzen. 2010. "Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range." Plos One 5(5): 10671-e10671. doi:10.1371/journal.pone.0010671
    Background: The northern fur seal (Callorhinus ursinus; NFS) is a widely distributed pinniped that has been shown to exhibit a high degree of philopatry to islands, breeding areas on an island, and even to specific ...

  • Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon 

    Normandeau, Eric, Jeffrey A. Hutchings, Dylan J. Fraser, and Louis Bernatchez. 2009. "Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon." Evolutionary Applications 2(4): 489-503.
    Because of intrinsic differences in their genetic architectures, wild populations invaded by domesticated individuals could experience population-specific consequences following introgression by genetic material of ...

  • Positive Darwinian Selection in the Piston That Powers Proton Pumps in Complex I of the Mitochondria of Pacific Salmon 

    Garvin, Michael R., Joseph P. Bielawski, and Anthony J. Gharrett. 2011. "Positive Darwinian Selection in the Piston That Powers Proton Pumps in Complex I of the Mitochondria of Pacific Salmon." Plos One 6(9): 24127-e24127.
    The mechanism of oxidative phosphorylation is well understood, but evolution of the proteins involved is not. We combined phylogenetic, genomic, and structural biology analyses to examine the evolution of twelve mitochondrial ...

  • Potential for anthropogenic disturbances to influence evolutionary change in the life history of a threatened salmonid 

    Williams, John G., Richard W. Zabel, Robin S. Waples, Jeffrey A. Hutchings, et al. 2008. "Potential for anthropogenic disturbances to influence evolutionary change in the life history of a threatened salmonid." Evolutionary Applications 1(2): 271-285.
    Although evolutionary change within most species is thought to occur slowly, recent studies have identified cases where evolutionary change has apparently occurred over a few generations. Anthropogenically altered ...

  • Predicting wave dislodgment of mussels: variation in attachment strength with body size, habitat, and season 

    Hunt, HL, and RE Scheibling. 2001. "Predicting wave dislodgment of mussels: variation in attachment strength with body size, habitat, and season." Marine Ecology Progress Series 213: 157-164. doi:10.3354/meps213157
    Breaking waves impose large hydrodynamic forces which may dislodge mussels and other organisms living on exposed rocky shores. We examined the effect of variation in attachment strength with size, habitat and season on ...

  • Prevalence and evolution of core photosystem II genes in marine cyanobacterial viruses and their hosts 

    Sullivan, Matthew B., Debbie Lindell, Jessica A. Lee, Luke R. Thompson, et al. 2006. "Prevalence and evolution of core photosystem II genes in marine cyanobacterial viruses and their hosts." Plos Biology 4(8): 1344-1357.
    Cyanophages ( cyanobacterial viruses) are important agents of horizontal gene transfer among marine cyanobacteria, the numerically dominant photosynthetic organisms in the oceans. Some cyanophage genomes carry and express ...

  • Prey Exchange Rates and the Impact of Predators on Prey Populations in Streams 

    Cooper, S. D., S. J. Walde, and B. L. Peckarsky. 1990. "Prey Exchange Rates and the Impact of Predators on Prey Populations in Streams." Ecology (Washington D C) 71(4): 1503-1514.
    We present four lines of evidence that the magnitude of prey exchange (=immigration/emigration) among substrate patches has an overwhelming influence on the perceived effects of predators on prey populations. (1) An extensive ...

  • Primiparous and multiparous females differ in mammary gland alveolar development: implications for milk production 

    Lang, Shelley L. C., Sara J. Iverson, and W. Don Bowen. 2012. "Primiparous and multiparous females differ in mammary gland alveolar development: implications for milk production." Journal of Experimental Biology 215(16): 2904-2911.
    Mammary gland capacity is influenced by the number of secretory cells in the gland, the activity of those cells and the size and arrangement of the alveoli that they form. Although reproductive experience has been shown ...

  • Procedural effects of prey tethering experiments: Predation of juvenile scallops by crabs and sea stars 

    Barbeau, M. A., and R. E. Scheibling. 1994. "Procedural effects of prey tethering experiments: Predation of juvenile scallops by crabs and sea stars." Marine Ecology Progress Series 111(3): 305-310. doi:10.3354/meps111305
    This study examines the effects of an experimental tethering procedure often used in field predation experiments. In laboratory experiments, juvenile sea scallops Placopecten magellanicus, either free or tethered, were ...

  • Quantitative fatty acid signature analysis: A new method of estimating predator diets 

    Iverson, Sara J., Chris Field, W. Don Bowen, and Wade Blanchard. 2004. "Quantitative fatty acid signature analysis: A new method of estimating predator diets." Ecological Monographs 74(2): 211-235. Copyright by the Ecological Society of America
    Accurate estimates of the diets of predators are required in many areas of ecology, but for many species current methods are imprecise, limited to the last meal, and often biased. The diversity of fatty acids and their ...

  • Rapid Global Expansion of Invertebrate Fisheries: Trends, Drivers, and Ecosystem Effects 

    Anderson, Sean C., Joanna Mills Flemming, Reg Watson, and Heike K. Lotze. 2011. "Rapid Global Expansion of Invertebrate Fisheries: Trends, Drivers, and Ecosystem Effects." Plos One 6(3): 14735-e14735.
    Background: Worldwide, finfish fisheries are receiving increasing assessment and regulation, slowly leading to more sustainable exploitation and rebuilding. In their wake, invertebrate fisheries are rapidly expanding with ...

  • Reciprocal Subsidies and Food Web Pathways Leading to Chum Salmon Fry in a Temperate Marine-Terrestrial Ecotone 

    Romanuk, Tamara N., and Colin D. Levings. 2010. "Reciprocal Subsidies and Food Web Pathways Leading to Chum Salmon Fry in a Temperate Marine-Terrestrial Ecotone." Plos One 5(4): 10073-e10073.
    Stable isotope analysis was used to determine the relative proportions of terrestrial and marine subsidies of carbon to invertebrates along a tidal gradient (low-intertidal, mid-intertidal, high-intertidal, supralittoral) ...

  • Recurrent outbreaks of disease in sea urchins Strongylocentrotus droebachiensis in Nova Scotia: Evidence for a link with large-scale meteorologic and oceanographic events 

    Scheibling, Robert E., and Allan W. Hennigar. 1997. "Recurrent outbreaks of disease in sea urchins Strongylocentrotus droebachiensis in Nova Scotia: Evidence for a link with large-scale meteorologic and oceanographic events." Marine Ecology Progress Series 152(1-3): 155-165. doi:10.3354/meps152155
    Recurrent outbreaks of a disease (paramoebiasis, caused by a marine amoeba Paramoeba invadens) result in mass mortalities of sea urchins Strongylocentrotus droebachiensis in the rocky subtidal zone of the Atlantic coast ...

  • Reduced Retinal Function in the Absence of Na(v)1.6 

    Smith, Benjamin J., and Patrice D. Cote. 2012. "Reduced Retinal Function in the Absence of Na(v)1.6." Plos One 7(2): 31476-e31476.
    Background: Mice with a function-blocking mutation in the Scn8a gene that encodes Na(v)1.6, a voltage-gated sodium channel (VGSC) isoform normally found in several types of retinal neurons, have previously been found to ...