Results 111 to 120 of about 7,676 (261)

An assessment of microplastics in fecal samples from polar bears (Ursus maritimus) in Canada's North

Arctic Science
We assessed the potential for plastic ingestion in polar bears (Ursus maritimus (Phipps (1774))) using fecal analysis. Two method studies ensured our protocols could effectively recover and identify plastics in feces. First, microplastics (film, foam, or
P.U. Iyare, H.L. Vanderlip, M. Dias, J.F. Provencher, S. Zou, S.C. Lougheed, P.J. Van Coeverden de Groot, G. Whitelaw, M. Branigan, M. Dyck, D.M. Orihel   +10 more
doaj   +1 more source

Polar bears observed climbing steep slopes to graze on scurvy grass in Svalbard

Polar Research, 2017
It is well known that polar bears feed on vegetation. Here, I report novel observations of polar bears grazing on polar scurvy grass (Cochlearia groenlandica) at the foot of a large seabird colony on a cliff on Spitsbergen, Svalbard, in the summers of ...
Lech Stempniewicz
doaj   +1 more source

Serum Virome of Southern Beaufort Sea polar bears (<i>Ursus maritimus</i>) during a period of rapid climate change. [PDF]

Conserv Physiol, 2023
Fry TL, Owens LA, Ketz AC, Atwood TC, Dunay E, Goldberg TL.   +5 more
europepmc   +1 more source

Semi-quantitative Assessment of Alzheimer's-like Pathology in Two Aged Polar Bears (Ursus maritimus). [PDF]

Comp Med, 2022
Lucot KL, Bukhari SA, Webber ED, Bonham TA, Darian-Smith C, Montine TJ, Green SL.   +6 more
europepmc   +1 more source

An exploratory spatial contaminant assessment for polar bear (Ursus maritimus) liver, fat, and muscle from northern Canada. [PDF]

Environ Pollut, 2023
Boutet V, Dominique M, Eccles KM, Branigan M, Dyck M, van Coeverden de Groot P, Lougheed SC, Rutter A, Langlois VS.   +8 more
europepmc   +1 more source

An on-ice aerial survey of the Kane Basin polar bear (Ursus maritimus) subpopulation. [PDF]

Polar Biol, 2022
Wiig Ø, Atkinson SN, Born EW, Stapleton S, Arnold T, Dyck M, Laidre KL, Lunn NJ, Regehr EV.   +8 more
europepmc   +1 more source

Human-caused climate change in United States national parks and solutions for the future [PDF]

, 2020
Human-caused climate change has exposed the US national park area to more severe increases in heat and aridity than the country as a whole and caused widespread impacts on ecosystems and resources.
Gonzalez, Patrick
core  

The Adrenal Cortisol Response to Increasing Ambient Temperature in Polar Bears (Ursus maritimus). [PDF]

Animals (Basel), 2022
Leishman EM, Franke M, Marvin J, McCart D, Bradford C, Gyimesi ZS, Nichols A, Lessard MP, Page D, Breiter CJ, Graham LH.   +10 more
europepmc   +1 more source

Hominid exploitation of the environment and cave bear populations:the case of Ursus spelaeus Rosenmuller-Heinroth in Amutxate cave (Aralar, Navarra-Spain) [PDF]

, 2007
Cave bears (Ursus deningeri and U. spelaeus) and hominids (Homo heidelbergensis, H. neanderthalensis, and H. sapiens) were potential competitors for environmental resources (subterranean and open air).
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

Telemetry without collars: performance of fur- and ear-mounted satellite tags for evaluating the movement and behaviour of polar bears

Animal Biotelemetry
The study of animal movement provides insights into underlying ecological processes and informs analyses of behaviour and resource use, which have implications for species management and conservation.
Tyler R. Ross, Gregory W. Thiemann, B. J. Kirschhoffer, Jon Kirschhoffer, Geoff York, Andrew E. Derocher, Amy C. Johnson, Nicholas J. Lunn, David McGeachy, Vicki Trim, Joseph M. Northrup   +10 more
doaj   +1 more source