Results 21 to 30 of about 4,242 (152)

The ecological and behavioral significance of short-term food caching in polar bears (Ursus maritimus)

Arctic Science, 2020
The paucity of observations of wild polar bears (Ursus maritimus) caching of food (including hoarding, i.e., burying and remaining with a kill for up to a few days) has led to the conclusion that such behavior does not occur or is negligible in this ...
Ian Stirling, Kristin L. Laidre, Andrew E. Derocher, Rinie Van Meurs   +3 more
doaj   +1 more source

First isolation of Brucella pinnipedialis and detection of Brucella antibodies from bearded seals Erignathus barbartus [PDF]

, 2018
Brucella species infecting marine mammals was first reported in 1994 and in the years since has been documented in various species of pinnipeds and cetaceans. While these reports have included species that inhabit Arctic waters, the few available studies
KM Kovacs, Brownlow, Andrew, Lydersen, C, Godfroid, J., KB Beckmen, Perrett, LL, Dagleish, Mark P, C Lydersen, Baily, Johanna, Nymo, Ingebjorg H., Kovacs, Kit M., Baily, J.L., Godfroid, Jacques, M Tryland, Muchowski, J, Foster, G., Nymo, Ingebjorg H, Dagleish, Mark P., MP Dagleish, Muchowski, J., Kovacs, KM, Lydersen, Christian, Whatmore, AM, Perrett, Lorraine L, AC Brownlow, Beckmen, Kimberlee B, Brownlow, AC, Beckmen, K.B., Muchowski, Jakub, G Foster, Beckmen, KB, Dagleish, M.P., Foster, G; id_orcid, Whatmore, A.M., Whatmore, Adrian M., B McGovern, McGovern, B., J Godfroid, McGovern, Barry, Baily, JL, Dagleish, MP, IH Nymo, JL Baily, Perrett, L.L., Nymo, I.H., AM Whatmore, Foster, Geoff, J Muchowski, LL Perrett, Beckmen, Kimberlee B., Tryland, Morten, Foster, Geoffrey, Brownlow, A.C., Whatmore, Adrian M, Lydersen, C., Tryland, M., Perrett, Lorraine L., Godfroid, J, Kovacs, K.M., Baily, Johanna L., Kovacs, Kit M, Tryland, M, McGovern, B, Brownlow, Andrew C., Nymo, IH   +64 more
core   +1 more source

Polar bear diet composition reveals spatiotemporal distribution of Arctic marine mammals across Nunavut, Canada

Ecological Indicators, 2021
Climate warming and associated physical and biological changes will likely force widespread species redistribution, particularly in polar environments. However, tracking such distributional shifts is difficult.
Melissa P. Galicia, Gregory W. Thiemann, Markus G. Dyck, Steven H. Ferguson   +3 more
doaj   +1 more source

Co-production of knowledge reveals loss of Indigenous hunting opportunities in the face of accelerating Arctic climate change

Environmental Research Letters, 2021
Profound sea ice loss is rapidly transforming coupled social-ecological Arctic marine systems. However, explicit impacts to harvesting of traditional resources for coastal Indigenous communities remain largely unquantified, particularly where the primary
Donna D W Hauser, Alex V Whiting, Andrew R Mahoney, John Goodwin, Cyrus Harris, Robert J Schaeffer, Roswell Schaeffer Sr, Nathan J M Laxague, Ajit Subramaniam, Carson R Witte, Sarah Betcher, Jessica M Lindsay, Christopher J Zappa   +12 more
doaj   +1 more source

Seasonal patterns in acoustic detections of marine mammals near Sachs Harbour, Northwest Territories

Arctic Science, 2018
The Arctic is changing rapidly, leading to changes in habitat availability and increased anthropogenic disturbance. Information on the distribution of animals is needed as these changes occur. We examine seasonal presence of marine mammals in the western
William D. Halliday, Stephen J. Insley, Tyler de Jong, Xavier Mouy   +3 more
doaj   +1 more source

Age and sex composition of seals killed by polar bears in the eastern Beaufort Sea. [PDF]

PLoS ONE, 2012
Polar bears (Ursus maritimus) of the Beaufort Sea enter hyperphagia in spring and gain fat reserves to survive periods of low prey availability. We collected information on seals killed by polar bears (n=650) and hunting attempts on ringed seal (Pusa ...
Nicholas W Pilfold, Andrew E Derocher, Ian Stirling, Evan Richardson, Dennis Andriashek   +4 more
doaj   +1 more source

Pre-partum diet of adult female bearded seals in years of contrasting ice conditions. [PDF]

PLoS ONE, 2012
Changing patterns of sea-ice distribution and extent have measurable effects on polar marine systems. Beyond the obvious impacts of key-habitat loss, it is unclear how such changes will influence ice-associated marine mammals in part because of the ...
Mark A Hindell, Christian Lydersen, Haakon Hop, Kit M Kovacs   +3 more
doaj   +1 more source

Erignathus barbatus

, 1982
<p> <i>Erignathus barbatus</i> (Erxleben, 1777). Syst. Regn. Anim., 1:590.</p> <p>TYPE LOCALITY: North Atlantic, S.
Kenneth E. Kinman, James H. Honacki, James W. Koeppl   +2 more
core   +1 more source

Fatty acid‐based diet estimates suggest ringed seal remain the main prey of southern Beaufort Sea polar bears despite recent use of onshore food resources

Ecology and Evolution, 2020
Polar bears (Ursus maritimus) from the southern Beaufort Sea (SB) subpopulation have traditionally fed predominantly upon ice‐seals; however, as the proportion of the subpopulation using onshore habitat has recently increased, foraging on land‐based ...
Jennifer Bourque, Todd C. Atwood, George J. Divoky, Connie Stewart, Melissa A. McKinney   +4 more
doaj   +1 more source

Erignathus barbatus

, 1993
<p> <i>Erignathus barbatus</i> (Erxleben, 1777). Syst. Regni Anim., 1:590.</p> <p>TYPE LOCALITY: "ad Scotiam atque Groelandiam australiorem, vulgaris circa Islandiam" [North Atlantic, S Greenland].</p> <
W. Christopher Wozencraft
core   +1 more source