Results 51 to 60 of about 15,567 (163)

An Updated Checklist of Terrestrial Mammals of Hainan Island, China

Biological Diversity, Volume 3, Issue 3, Page 180-189, September 2026.
Building upon the foundational work Birds and Mammals of Hainan Island (1983), and synthesizing verified species records accumulated over the past four decades under a modern taxonomic framework, we present an updated checklist documenting 95 species of terrestrial mammals on Hainan Island.
Zhihui Yang, Gang Lu, Yixin Chen, Yuan Chen   +3 more
wiley   +1 more source

On following pages: 8. Polar Bear (Ursus maritimus). in Ursidae

, 2009
On following pages: 8. Polar Bear (Ursus maritimus).Published as part of Don E. Wilson & Russell A. Mittermeier, 2009, Ursidae, pp. 448-497 in Handbook of the Mammals of the World – Volume 1 Carnivores, Barcelona :Lynx Edicions on page 495, DOI: 10.5281 ...
Don E. Wilson, Russell A. Mittermeier
core   +1 more source

Assisted reproductive technology in bear (ursidae) conservation Ailuropoda Melanoleuca, Ursus Arctos and Usus Maritimus [PDF]

, 2014
PósterThe Ursidae family is severely threatened having 6 of the 8 bear species in danger of extinction. Due to its reproductive physiology characteristics, ursids have a low reproduction rate which aggravates in captivity.
Universitat Autònoma de Barcelona. Facultat de Veterinària, Baldoví Sánchez, Isabel   +1 more
core   +1 more source

A novel endogenous betaretrovirus group characterized from polar bears (Ursus maritimus) and giant pandas (Ailuropoda melanoleuca). [PDF]

Virology, 2013
Transcriptome analysis of polar bears (Ursus maritimus) yielded sequences with highest similarity to the human endogenous retrovirus group HERV-K(HML-2).
Mayer J, Tsangaras K, Heeger F, Avila-Arcos M, Stenglein MD, Chen W, Sun W, Mazzoni CJ, Osterrieder N, Greenwood AD.   +9 more
europepmc   +2 more sources

Data from: Genetic relationships of extant brown bears (Ursus arctos) and polar bears (Ursus maritimus)

, 2012
Polar bears (Ursus maritimus) and brown bears (Ursus arctos) are closely related species for which extensive mitochondrial and nuclear phylogenetic genetic comparisons have been made.
MacNeil, Michael D., Cronin, Matthew A.
core   +1 more source

Metabolic changes in summer active and anuric hibernating free-ranging brown bears (ursus arctos) [PDF]

, 2013
The brown bear (Ursus arctos) hibernates for 5 to 6 months each winter and during this time ingests no food or water and remains anuric and inactive.
Abdul Rashid Qureshi, Johnson, Richard J,, Fröbert, Ole,, Peter Stenvinkel, Palm, Fredrik, Eriksson, Monica, Tobias Larsson, Zedrosser, Andreas, Josefsson, Johan, Johnson, Richard J., Anderstam, Björn, Friebe, Andrea,, Stenvinkel, Peter, Bankir, Lise, Johnson, Richard J, Sahdo, Berolla, Sahdo, Berolla,, Ann-Christin Bragfors-Helin, Andreas Zedrosser, Lise Bankir, Qureshi, Abdul Rashid,, Fröbert, Ole, Ole Fröbert, Björn Anderstam, Richard J Johnson, Anderstam, Björn,, Larsson, Tobias,, Friebe, Andrea, Berolla Sahdo, Bragfors-Helin, Ann-Christin,, Bragfors-Helin, Ann-Christin, Johnson, Richard J.,, Johan Josefsson, Josefsson, Johan,, Eriksson, Monica,, Qureshi, Abdul Rashid, Larsson, Tobias, Svensson, My, Stenvinkel, Peter,, Svensson, My,, My Svensson, Zedrosser, Andreas,, Palm, Fredrik,, Monica Eriksson, Bankir, Lise,, Fredrik Palm, Andrea Friebe, Zedrosser, A, Eriksson Monica, Larsson Tobias, Johnson Richard J., Josefsson Johan, Zedrosser Andreas, Anderstam Björn, Fröbert Ole, Frobert, O, Sahdo Berolla, Friebe Andrea, Qureshi Abdul Rashid, Bankir Lise, Stenvinkel Peter, Svensson My, Larsson, T,, Bragfors-Helin, A-C, Palm, F, Palm Fredrik, Eriksson, M,, Bragfors-Helin Ann-Christin, Friebe, A, Stenvinkel, P,, Anderstam, B,, Qureshi, AR   +71 more
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Evaluating harvest risk with limited data: A case study on polar bears (Ursus maritimus) in East Greenland

Conservation Science and Practice, Volume 8, Issue 9, September 2026.
We developed a state‐dependent modeling and management framework to evaluate the demographic effects of different harvest strategies on the East Greenland polar bear subpopulation. This paper is for scientists undertaking wildlife harvest risk assessments for conservation and management, and for wildlife managers responsible for establishing ...
Eric V. Regehr, Kristin L. Laidre, Fernando Ugarte   +2 more
wiley   +1 more source

Home range, movements, and activity patterns of a brown bear in Serbia

, 2015
© 2015 International Association for Bear Research and Management. We present satellite telemetry data for a subadult brown bear (Ursus arctos) in Serbia, documenting movements and activity for 273 days (Apr 2007 to Jan 2008).
Karamanlidis, Alexandros A., De Gabriel Hernando, Miguel, Ćirović, Duško, Paunović, Milan   +3 more
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Extralimital Sighting of a Polar Bear, Ursus maritimus, in Northeast Saskatchewan [PDF]

, 2003
The first documented occurrence of a Polar Bear (Ursus maritimus) in northeastern Saskatchewan, 420 km from the western coast of Hudson Bay, is described. The bear was most likely a sub-adult male in fair condition, with respect to body fat.
Goodyear, Michael A.
core   +1 more source

(Table 1) Mean age, body measurements, and body condition index of polar bear (Ursus maritimus) mothers and cubs

, 2012
(Table 1) Mean age, body measurements, and body condition index of polar bear (Ursus maritimus) mothers and ...
Jenny Bytingsvik (1929151), Jon Aars (681814), Lie, Elisabeth, Aars, Jon, Jenssen, Bjørn Munro, Øystein Wiig (7995425), Wiig, Øystein, Andrew E Derocher (7995422), Bytingsvik, Jenny, Elisabeth Lie (1929157), Derocher, Andrew E, Bjørn Munro Jenssen (7996721)   +11 more
core   +1 more source