Now showing items 8-27 of 228

  • Behavioral reactions of northern bottlenose whales (Hyperoodon ampullatus) to biopsy darting and tag attachment procedures 

    Hooker, SK; Baird, RW; Al-Omari, S.; Gowans, S.; Whitehead, Hal (2001-04)
    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; Scheibling, Robert Eric (2007)
    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; Piroddi, Chiara; Steenbeek, Jeroen; Kaschner, Kristin; Lasram, Frida Ben Rais; Aguzzi, Jacopo; Ballesteros, Enric; Bianchi, Carlo Nike; Corbera, Jordi; Dailianis, Thanos; Danovaro, Roberto; Estrada, Marta; Froglia, Carlo; Galil, Bella S.; Gasol, Josep M.; Gertwagen, Ruthy; Gil, Joao; Guilhaumon, Francois; Kesner-Reyes, Kathleen; Kitsos, Miltiadis-Spyridon; Koukouras, Athanasios; Lampadariou, Nikolaos; Laxamana, Elijah; Lopez-Fe de la Cuadra, Carlos M.; Lotze, Heike K.; Martin, Daniel; Mouillot, David; Oro, Daniel; Raicevich, Sasa; Rius-Barile, Josephine; Ignacio Saiz-Salinas, Jose; San Vicente, Carles; Somot, Samuel; Templado, Jose; Turon, Xavier; Vafidis, Dimitris; Villanueva, Roger; Voultsiadou, Eleni (2010-08)
    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 ...
  • Biological husbandry and the "nitrogen problem" 

    Patriquin, David G. (Biological Agriculture and Horticulture, 1986)
    Since 1978, the author has been conducting research into the theory and practice of biological husbandry in collaboration with a farmer who stopped using pesticides and mineral fertilizers in 1976. Eggs are exported from ...
  • Body condition at weaning affects the duration of the postweaning fast in gray seal pups (Halichoerus grypus) 

    Noren, Shawn R.; Boness, Daryl J.; Iverson, Sara J.; McMillan, Jim; Bowen, W. Don (2008-05)
    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.; Weese, Dylan J.; Bentzen, Paul; Kinnison, Michael T.; Hendry, Andrew P. (2010-12)
    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.; Freedman, Bill; Hudson, James M. G.; Henry, Gregory H. R. (2010-09)
    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.; Smits, Allan W. (1993)
    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.; Wright, Jonathan M. (1994)
    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 ...
  • Can we stop the lobster going the way of the cod? 

    Corkett, Christopher J. (labeled ‘A brief submitted in 2006 to the Fisheries Resource Conservation Council (FRCC)’, 2006)
    This report is a response to the Fisheries Resource Conservation Council (FRCC)’s request for opinion on how to reduce risk and address problems in Atlantic Canada’s lobster fishery. See www.frcc-ccrh.ca for further details ...
  • Canadian Integrated Ocean Observing System Investigative Evaluations: Observations and Data 

    Whoriskey, Frederick G; Morton, Kathryn (Kes); Bajona, Lenore; Beck, Matthew; Dewey, Richard; Guillemot, Eric; Hurtubise, Jessica; Jenkyns, Reyna; Lapointe, Stéphane; Pirenne, Benoit; Owens, Dwight; Plourde, Arianne; Pye, Jonathan; Ransier, Krista; Sauvé, Germain; Ste-Marie, Anne-Sophie; Tremblay, Claude (2017-11-30)
    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; Audic, Stephane; Adl, Sina; Bass, David; Belbahri, Lassaad; Berney, Cedric; Bowser, Samuel S.; Cepicka, Ivan; Decelle, Johan; Dunthorn, Micah; Fiore-Donno, Anna Maria; Gile, Gillian H.; Holzmann, Maria; Jahn, Regine; Jirku, Miloslav; Keeling, Patrick J.; Kostka, Martin; Kudryavtsev, Alexander; Lara, Enrique; Lukes, Julius; Mann, David G.; Mitchell, Edward A. D.; Nitsche, Frank; Romeralo, Maria; Saunders, Gary W.; Simpson, Alastair G. B.; Smirnov, Alexey V.; Spouge, John L.; Stern, Rowena F.; Stoeck, Thorsten; Zimmermann, Jonas; Schindel, David; de Vargas, Colomban (2012-11)
    No abstract available.
  • Cetaceans have complex brains for complex cognition 

    Marino, Lori; Connor, Richard C.; Fordyce, R. Ewan; Herman, Louis M.; Hof, Patrick R.; Lefebvre, Louis; Lusseau, David; McCowan, Brenda; Nimchinsky, Esther A.; Pack, Adam A.; Rendell, Luke; Reidenberg, Joy S.; Reiss, Diana; Uhen, Mark D.; Van der Gucht, Estel; Whitehead, Hal (2007-05)
    No abstract available.
  • Characteristics of predators and offspring influence nest defense by Arctic and Common Terns 

    Whittam, RM; Leonard, Marty L. (2000-05)
    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, ...
  • The Chebucto Peninsula: A Significant Conservation Area 

    Patriquin, David (www.ourhrmalliance.ca, 2015-08-09)
    The Parks and Protected Areas on the Chebucto Peninsula on Nova Scotia’s Atlantic coast and some of the features that make the whole peninsula a significant conservation area are described and illustrated with maps and photos.
  • Circulation time, blood reserves and extracellular space in a cephalopod 

    O'Dor, R. K.; Wells, MJ (1984)
    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 ...
  • Coastal food web structure, carbon storage, and nitrogen retention regulated by consumer pressure and nutrient loading 

    Worm, Boris; Lotze, Heike K.; Sommer, U. (2000-03)
    By factorial field experiments we analyzed the relative effects of increased nutrient (N+P) loading and natural grazing pressure on species composition, carbon storage, and nitrogen retention in the Baltic Sea littoral ...
  • Community Dynamics on a Subtidal Cobble Bed Following Mass Mortalities of Sea Urchins 

    Scheibling, Robert Eric; Raymond, B. G. (1990)
    The macrobenthic community of a shallow subtidal cobble bed at Eagle Head on the Atlantic coast of Nova Scotia [Canada] was monitored from ca 4 mo before to 41 mo after mass mortalities of sea urchins Strongylocentrotus ...
  • Community structure and organization of tidepools 

    Metaxas, Anna; Scheibling, Robert Eric (1993)
    Although tidepools are conspicuous components of rocky intertidal shores, their biotic communities have not been studied as extensively as those on emergent substrata. We examine processes regulating the structure of ...
  • Compartmental models of nitrogen cycling in tropical and temperate marine environments 

    LaRoche, Julie; Harrison, W. G. (1987)
    Time-course measurements of super(15)N tracer kinetics in particulate organic and in NH super(+) sub(4) pools from tropical and temperate regions were used to test several compartmental models describing the exchange of ...