Increased foraging effort and reduced chick condition of razorbills under lower prey biomass in coastal Newfoundland, Canada

Autor: L Lescure, J Gulka, GK Davoren

Publikováno v: Marine Ecology Progress Series. 709:109-123

When resources are finite, individuals optimize energy allocation between survival and reproduction to maximize fitness. As food becomes more limited within foraging ranges of breeding colonies, long-lived seabirds are predicted to increase time spen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::78f316b656a63f57a2764ec2ab027c67
https://doi.org/10.3354/meps14286

Intra- and inter-annual shifts in foraging tactics by parental northern gannets Morus bassanus indicate changing prey fields

Autor: KJN d’Entremont, GK Davoren, CJ Walsh, SI Wilhelm, WA Montevecchi

Publikováno v: Marine Ecology Progress Series. 698:155-170

Seabirds are constrained by central-place foraging during breeding, when the energy obtained from prey must outweigh the costs of travel, search, capture and transport. The distribution and phenology of the cold-blooded marine fishes they exploit are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12f60f9c7e5946b3793e23daa4b508fe
https://doi.org/10.3354/meps14164

Foraging range scales with colony size in high-latitude seabirds.

Autor: Patterson A; Department of Natural Resource Sciences, McGill University, 21111 Lakeshore Boulevard, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada. Electronic address: allison.patterson@mail.mcgill.ca., Gilchrist HG; National Wildlife Research Centre, Environment and Climate Change Canada, Ottawa, ON, Canada., Benjaminsen S; Norwegian Institute for Nature Research, Fram Centre, 9296 Tromsø, Norway., Bolton M; RSPB Centre for Conservation Science, Royal Society for the Protection of Birds, Sandy, UK., Bonnet-Lebrun AS; British Antarctic Survey, High Cross, Madingley Road, Cambridge, UK., Davoren GK; Department of Biological Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada., Descamps S; Norwegian Polar Institute, Fram Centre, PO Box 6606 Langnes, 9296 Tromsø, Norway., Erikstad KE; Norwegian Institute for Nature Research, Fram Centre, 9296 Tromsø, Norway; Centre for Biodiversity Dynamics, Norwegian University of Science and Technology, Trondheim, Norway., Frederiksen M; Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark., Gaston AJ; Laskeek Bay Conservation Society, Queen Charlotte, PO Box 867, Queen Charlotte, BC V0T 1S0, Canada., Gulka J; Department of Biological Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada., Hentati-Sundberg J; Department of Aquatic Resources, Institute of Marine Research, Swedish University of Agricultural Sciences, Lysekil, Sweden., Huffeldt NP; Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark; Greenland Institute of Natural Resources, Kivioq 2, 3900 Nuuk, Greenland., Johansen KL; Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark., Labansen AL; Greenland Institute of Natural Resources, Kivioq 2, 3900 Nuuk, Greenland., Linnebjerg JF; Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark., Love OP; Department of Integrative Biology, University of Windsor, 401 Sunset Avenue, Windsor, ON N9B 3P4, Canada., Mallory ML; Biology, Acadia University, 15 University Avenue, Wolfville, NS B4P 2R6, Canada., Merkel FR; Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark; Department of Aquatic Resources, Institute of Marine Research, Swedish University of Agricultural Sciences, Lysekil, Sweden., Montevecchi WA; Psychology and Biology Departments, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada., Mosbech A; Centre for Biodiversity Dynamics, Norwegian University of Science and Technology, Trondheim, Norway., Olsson O; Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden., Owen E; RSPB Centre for Conservation Science, Royal Society for the Protection of Birds, Sandy, UK., Ratcliffe N; British Antarctic Survey, High Cross, Madingley Road, Cambridge, UK., Regular PM; Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, St. John's, NL, Canada., Reiertsen TK; Norwegian Institute for Nature Research, Fram Centre, 9296 Tromsø, Norway., Ropert-Coudert Y; Centre d'Etudes Biologiques de Chizé, CNRS - La Rochelle Université, Villiers-en-Bois, France., Strøm H; Norwegian Polar Institute, Fram Centre, PO Box 6606 Langnes, 9296 Tromsø, Norway., Thórarinsson TL; Northeast Iceland Nature Research Centre, Hafnarstétt 3, 640 Húsavík, Iceland., Elliott KH; Department of Natural Resource Sciences, McGill University, 21111 Lakeshore Boulevard, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada.

Publikováno v: Current biology : CB [Curr Biol] 2022 Sep 12; Vol. 32 (17), pp. 3800-3807.e3. Date of Electronic Publication: 2022 Jul 22.

Allopatric humpback whales of differing generations share call types between foraging and wintering grounds.

Autor: Epp MV; Department of Biological Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada. eppm34@myumanitoba.ca., Fournet MEH; K. Lisa Yang Center for Conservation Bioacoustics, Cornell Lab of Ornithology, Cornell Lab of Ornithology, Cornell University, Ithaca, NY, USA.; Sound Science Research Collective, Juneau, AK, USA., Silber GK; Smultea Sciences, Washington Grove, MD, USA., Davoren GK; Department of Biological Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada.

Publikováno v: Scientific reports [Sci Rep] 2021 Aug 11; Vol. 11 (1), pp. 16297. Date of Electronic Publication: 2021 Aug 11.

Diet-tissue discrimination factors (δ ¹⁵ N and δ ¹³ C values) for blood components in Magellanic (Spheniscus magellanicus) and southern rockhopper (Eudyptes chrysocome) penguins.

Autor: Jenkins E; Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada., Gulka J; Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada., Yurkowski DJ; Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada.; Fisheries and Oceans Canada, Winnipeg, Manitoba, R3T 2N6, Canada., Davoren GK; Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada., Gonzalez L; John G. Shedd Aquarium, Chicago, IL 60605, USA.

Publikováno v: Rapid communications in mass spectrometry : RCM [Rapid Commun Mass Spectrom] 2020 Mar 30; Vol. 34 (6), pp. e8612.