Results 41 to 50 of about 7,579 (247)

Transitions of social-ecological subsistence systems in the Arctic [PDF]

, 2017
Transitions of social-ecological systems (SES) expose governance systems to new challenges. This is particularly so in the Arctic where resource systems are increasingly subjected to global warming, industrial development and globalization which ...
Clark, Douglas A., Fauchald, Per, Hausner, Vera, Schmidt, Jennifer   +3 more
core   +4 more sources

Polar bear (Ursus maritimus) use of the Cape Bathurst polynya and flaw lead

Arctic Science, 2022
The Cape Bathurst polynya and flaw lead (CBP) are major, predictable habitat features with ≤15% ice cover in an otherwise ice-covered Beaufort Sea, and thought to provide hunting opportunities for polar bears (Ursus maritimus Phipps, 1774).
Erin M. Henderson, Andrew E. Derocher
doaj   +1 more source

Novel range overlap of three ursids in the Canadian subarctic

Arctic Science, 2019
We describe for the first time in the peer-reviewed literature observations of American black bear (Ursus americanus Pallas, 1780), grizzly bear (Ursus arctos Linnaeus, 1758), and polar bear (Ursus maritimus Phipps, 1774) at the same locations.
Douglas Andrew Clark, Ryan Brook, Chelsea Oliphant-Reskanski, Michel P. Laforge, Kiva Olson, Danielle Rivet   +5 more
doaj   +1 more source

THE GENUS URSUS IN EURASIA: DISPERSAL EVENTS AND STRATIGRAPHICAL SIGNIFICANCE

Rivista Italiana di Paleontologia e Stratigrafia, 2017
On the basis of the results of former studies by the present authors five main groups of bears are recognized: Ursus gr. minimus - thibetanus (black bears), Ursus gr. etruscus (etruscan bears), Ursus gr. arctos (brown bears), Ursus gr.
MARCO RUSTIONI, PAUL MAZZA
doaj   +1 more source

Post-conflict movements of polar bears in western Hudson Bay, Canada

Arctic Science, 2023
Human–carnivore conflicts have increased as habitat has been affected by development and climate change. Understanding how biological factors, environment, and management decisions affect the behaviour of animals may reduce conflicts.
Erin N. Miller, Vicki Trim, Nicholas J. Lunn, David McGeachy, Andrew E. Derocher   +4 more
doaj   +1 more source

Mitochondrial Genomes Reveal an Explosive Radiation of Extinct and Extant Bears near the Miocene-Pliocene Boundary [PDF]

, 2008
Background: Despite being one of the most studied families within the Carnivora, the phylogenetic relationships among the members of the bear family (Ursidae) have long remained unclear.
Bray, Sarah C. E., Briggs, Adrian W., Cooper, Alan, Dear, Paul H., Hofreiter, Michael, Kolokotronis, Sergios-Orestis, Krause, Johannes, Malaspinas, Anna-Sapfo, Matheus, Paul, Nocon, Aline, O\u27Brien, Stephen J., Paabo, Svante, Rabeder, Gernot, Slatkin, Montgomery, Soibelzon, Leopoldo, Spriggs, Helen, Stiller, Mathias, Unger, Tina   +17 more
core   +10 more sources

Biomechanical evolution of solid bones in large animals: a microanatomical investigation [PDF]

, 2016
International ...
Alexander, Alexandra Houssaye, Amson, Andrew H. Lee, Antoine, Bibi, Blomberg, Buffrénil, Campione, Canoville, Carrano, Carrano, Christiansen, Clementz, Cornette, Cubo, Doube, Doube, Dumont, Evin, Fish, Garland, Garland, Gheerbrant, Gilbert, Girondot, Gray, Gregory, Hayashi, Hildebrand, Hokkanen, Houssaye, Houssaye, Houssaye, Houssaye, Houssaye, Houssaye, Houssaye, John R. Hutchinson, Katja Waskow, Klein, Laurin, Meredith, Nakajima, O'Neill, Oxnard, Oxnard, Polly, Prothero, Quemeneur, R Core Team, Ramsay, Raphaël Cornette, Remes, Ren, Ren, Ripley, Ross, Ruff, Sander, Schalkwyk, Schmidt-Nielsen, Sereno, Shoji Hayashi, Steiner, Straehl, Thompson, Todd, Venables, Vizcaino, Wall, Warner, Waskow   +72 more
core   +1 more source

Worth the dip? Polar bear predation on swimming flightless greater snow geese and estimation of energetic efficiency

Arctic Science, 2023
As sea-ice cover is shrinking, polar bears (Ursus maritimus, Phipps, 1774) face decreased access to seals, their primary prey, resulting in a greater dependence on terrestrial food sources.
Matthieu Weiss-Blais, David Bolduc, Madeleine-Zoé Corbeil-Robitaille, Frédéric Dulude-de Broin, Thierry Grandmont, Frédéric LeTourneux, Mathilde Poirier, Denis Sarrazin, Pierre Legagneux   +8 more
doaj   +3 more sources

Mandible size and shape in extant Ursidae (Carnivora, Mammalia): A tool for taxonomy and ecogeography [PDF]

, 2017
The family Ursidae is currently one of the taxonomic groups with the lowest number of species among Carnivora. Extant bear species exhibit broad ecological adaptations both at inter- and intraspecific level, and taxonomic issues within this family remain
Adams, Adams, Adams, Adams, Adams, Amano, Arnold, Aryal, Banes, Barnes, Baryshnikov, Bechshøft, Blomberg, Bojarska, Bookstein, Bubadué, Byun, Calvignac, Cardini, Cardini, Cardini, Christiansen, Ciucci, Colangelo, Cronin, Cáceres, Cáceres, Ewer, Figueirido, Fuchs, Galbreath, Garshelis, Gittleman, Gordon, Hall, Herrero, Heteren, Heteren, Heteren, Hijmans, Hwang, Kennedy, Kitchener, Korsten, Krause, Loy, Mattson, McLellan, Meijaard, Meloro, Meloro, Meloro, Meloro, Meloro, Meloro, Meloro, Meloro, Meloro, Mihaylov, Ohdachi, Oksanen, Pagès, Pocock, Pocock, Rausch, Reid, Rohlf, Rohlf, Rohlf, Rohlf, Sacco, Slater, Stirling, Waits, Waits, Wilson, Yoneda, Zedrosser, Zelditch   +78 more
core   +2 more sources

Ursus maritimus Phipps 1774

, 1982
Ursus maritimus Phipps, 1774. A Voyage Towards North Pole, p. 185. TYPE LOCALITY: Norway, Spitzbergen Isis. DISTRIBUTION: Circumpolar in the Arctic. COMMENT: Placed in genus Ursus, subgenus Thalarctos by Gromov and Baranova, 1981:253, and in genus Thalarctos by Corbet, 1978:166. Reviewed by DeMaster and Stirling, 1981, Mamm. Species, 145:1-7. PROTECTED
Honacki, James H., Kinman, Kenneth E., Koeppl, James W.   +2 more
openaire   +1 more source