Now showing items 1-20 of 185

  • Acoustical features of song categories of the Adelaide's warbler (Dendroica adelaidae) 

    Staicer, Cynthia A.. 1996. "Acoustical features of song categories of the Adelaide's warbler (Dendroica adelaidae)." Auk 113(4): 771-783.
    I identified acoustical features that distinguish the two song categories, A and B, of the Adelaide';s Warbler (Dendroica adelaidae). Like many other wood-warbler species, male Adelaide';s Warblers have functionally ...
  • Adaptive Value and Costs of Physiological Plasticity to Soil Moisture Limitation in Recombinant Inbred Lines of Avena barbata 

    Maherali, Hafiz, Christina M. Caruso, Mark E. Sherrard, and Robert G. Latta. 2010. "Adaptive Value and Costs of Physiological Plasticity to Soil Moisture Limitation in Recombinant Inbred Lines of Avena barbata." American Naturalist 175(2): 211-224.
    Costs are hypothesized to constrain the evolution of adaptive phenotypic plasticity, but they have been difficult to quantify because strong selection should eliminate costly genotypes from natural populations. However, ...
  • Aggressive nest intrusions by male Humboldt Penguins 

    Taylor, Sabrina S., Marty L. Leonard, and Daryl J. Boness. 2001. "Aggressive nest intrusions by male Humboldt Penguins." Condor 103(1): 162-165.
    During observations at a breeding colony of Humboldt Penguins (Spheniscus humboldti), we noted five male penguins enter nests occupied by breeding pairs and engage in aggressive interactions with the resident adult. These ...
  • Analysis of animal movement using opportunistic individual identifications: Application to sperm whales 

    Whitehead, H.. 2001. "Analysis of animal movement using opportunistic individual identifications: Application to sperm whales." Ecology 82(5): 1417-1432.
    Data sets in which animals are identified individually in different places and times may contain considerable information on movements. However, if the probability that an animal is reidentified depends on its movement ...
  • Animal-Borne Acoustic Transceivers Reveal Patterns of at-Sea Associations in an Upper-Trophic Level Predator 

    Lidgard, Damian C., W. Don Bowen, Ian D. Jonsen, and Sara J. Iverson. 2012. "Animal-Borne Acoustic Transceivers Reveal Patterns of at-Sea Associations in an Upper-Trophic Level Predator." Plos One 7(11): 48962-e48962.
    Satellite telemetry data have substantially increased our understanding of habitat use and foraging behaviour of upper-trophic marine predators, but fall short of providing an understanding of their social behaviour. We ...
  • Assessing the Value of Recreational Divers for Censusing Elasmobranchs 

    Ward-Paige, Christine A., and Heike K. Lotze. 2011. "Assessing the Value of Recreational Divers for Censusing Elasmobranchs." Plos One 6(10): 25609-e25609.
    Background: Around the world, researchers are using the observations and experiences of citizens to describe patterns in animal populations. This data is often collected via ongoing sampling or by synthesizing past ...
  • Avoidance of fisheries-induced evolution: management implications for catch selectivity and limit reference points 

    Hutchings, Jeffrey A.. 2009. "Avoidance of fisheries-induced evolution: management implications for catch selectivity and limit reference points." Evolutionary Applications 2(3): 324-334.
    I examined how the fitness (r) associated with early-and late-maturing genotypes varies with fishing mortality (F) and age-/size-specific probability of capture. Life-history data on Newfoundland's northern Atlantic cod ...
  • Behavioral reactions of northern bottlenose whales (Hyperoodon ampullatus) to biopsy darting and tag attachment procedures 

    Hooker, SK, RW Baird, S. Al-Omari, S. Gowans, et al. 2001. "Behavioral reactions of northern bottlenose whales (Hyperoodon ampullatus) to biopsy darting and tag attachment procedures." Fishery Bulletin 99(2): 303-308.
    The effects of invasive or intrusive research techniques need to be thoroughly documented in order to satisfy appropriate standards of animal care. How cetaceans react to either biopsy darting ol tag attachment procedures ...
  • Behaviour of sea urchin Strongylocentrotus droebachiensis grazing fronts: food-mediated aggregation and density-dependent facilitation 

    Lauzon-Guay, Jean-Sebastien, and Robert E. Scheibling. 2007. "Behaviour of sea urchin Strongylocentrotus droebachiensis grazing fronts: food-mediated aggregation and density-dependent facilitation." Marine Ecology Progress Series 329: 191-204. doi:10.3354/meps329191
    The occurrence of destructive grazing fronts is a common phenomenon in sea urchins, but mechanisms governing front formation and dynamics remain poorly understood. We experimentally examined the effect of kelp biomass ...
  • The Biodiversity of the Mediterranean Sea: Estimates, Patterns, and Threats 

    Coll, Marta, Chiara Piroddi, Jeroen Steenbeek, Kristin Kaschner, et al. 2010. "The Biodiversity of the Mediterranean Sea: Estimates, Patterns, and Threats." Plos One 5(8): 11842-e11842.
    The Mediterranean Sea is a marine biodiversity hot spot. Here we combined an extensive literature analysis with expert opinions to update publicly available estimates of major taxa in this marine ecosystem and to revise ...
  • Body condition at weaning affects the duration of the postweaning fast in gray seal pups (Halichoerus grypus) 

    Noren, Shawn R., Daryl J. Boness, Sara J. Iverson, Jim McMillan, et al. 2008. "Body condition at weaning affects the duration of the postweaning fast in gray seal pups (Halichoerus grypus)." Physiological and Biochemical Zoology 81(3): 269-277. Copyright © 2008 The University of Chicago Press.
    Gray seals (Halichoerus grypus) undergo a terrestrial postweaning fast (PWF) that depletes energy reserves acquired during the suckling interval. Plasticity in PWF duration may ensure that pups of variable body condition ...
  • Both Geography and Ecology Contribute to Mating Isolation in Guppies 

    Schwartz, Amy K., Dylan J. Weese, Paul Bentzen, Michael T. Kinnison, et al. 2010. "Both Geography and Ecology Contribute to Mating Isolation in Guppies." Plos One 5(12): 15659-e15659. doi:10.1371/journal.pone.0015659
    Local adaptation to different environments can promote mating isolation - either as an incidental by-product of trait divergence, or as a result of selection to avoid maladaptive mating. Numerous recent empirical examples ...
  • Breeding Bird Surveys at Alexandra Fiord, Ellesmere Island, Nunavut (1980-2008) 

    Trefry, Sarah A., Bill Freedman, James M. G. Hudson, and Gregory H. R. Henry. 2010. "Breeding Bird Surveys at Alexandra Fiord, Ellesmere Island, Nunavut (1980-2008)." Arctic 63(3): 308-314.
    Long-term monitoring of bird populations in the Arctic is of considerable interest as this area is experiencing rapid climate warming; however, multi-decadal studies in the Canadian High Arctic are rare. Over five summers ...
  • The burrow microhabitat of the land crab Cardisoma guanhumi: Respiratory/ionic conditions and physiological responses of crabs to hypercapnia 

    Pinder, Alan W., and Allan W. Smits. 1993. "The burrow microhabitat of the land crab Cardisoma guanhumi: Respiratory/ionic conditions and physiological responses of crabs to hypercapnia." Physiological zoology 66(2): 216-236.
    Cardisoma guanhumi in Puerto Rico spend much of the dry season in burrows that descend to groundwater. Burrows are sometimes 3-4 m deep and may be capped with dried mud for over 3 mo. Samples of gas and water from burrows ...
  • Can SINEs: A family of tRNA-derived retroposons specific to the superfamily canoidea 

    Coltman, David W., and Jonathan M. Wright. 1994. "Can SINEs: A family of tRNA-derived retroposons specific to the superfamily canoidea." Nucleic acids research 22(14): 2726-2730. doi:10.1093/nar/22.14.2726
    A repetitive element of approximately 200 bp was cloned from harbour seal (Phoca vitulina concolour) genomic DNA. The sequence of the element revealed putative RNA polymerase III control boxes, a poly A tail and direct ...
  • Canadian Integrated Ocean Observing System Investigative Evaluations: Observations and Data 

    Many countries have employed a coordinated network of government agencies, research institutions, and private companies to establish national integrated Ocean Observing Systems (OOSes). Although Canada boasts a robust and ...
  • CBOL Protist Working Group: Barcoding Eukaryotic Richness beyond the Animal, Plant, and Fungal Kingdoms 

    Pawlowski, Jan, Stephane Audic, Sina Adl, David Bass, et al. 2012. "CBOL Protist Working Group: Barcoding Eukaryotic Richness beyond the Animal, Plant, and Fungal Kingdoms." Plos Biology 10(11): 1001419-e1001419. doi:10.1371/journal.pbio.1001419
    No abstract available.
  • Cetaceans have complex brains for complex cognition 

    Marino, Lori, Richard C. Connor, R. Ewan Fordyce, Louis M. Herman, et al. 2007. "Cetaceans have complex brains for complex cognition." Plos Biology 5(5): 966-972.
    No abstract available.
  • Characteristics of predators and offspring influence nest defense by Arctic and Common Terns 

    Whittam, RM, and ML Leonard. 2000. "Characteristics of predators and offspring influence nest defense by Arctic and Common Terns." Condor 102(2): 301-306.
    Nest defense is a critical aspect of parental care that entails both costs and benefits. The purpose of this study was to examine patterns of nest defense in a colony of Arctic and Common Terns (Sterna paradisaea and S, ...
  • Circulation time, blood reserves and extracellular space in a cephalopod 

    O'Dor, R. K., and MJ Wells. 1984. "Circulation time, blood reserves and extracellular space in a cephalopod." Journal of Experimental Biology 113: 461-464.
    Octopus vulgaris Cuvier has a fully enclosed blood system that includes large blood sinuses behind the eyes and around the gut. It would be useful to know the mean circulation time, the minimal number of heartbeats needed ...