Results 71 to 80 of about 176,284 (192)

Using tri-axial accelerometers to identify wild polar bear behaviors

Endangered Species Research, 2017
Tri-axial accelerometers have been used to remotely identify the behaviors of a wide range of taxa. Assigning behaviors to accelerometer data often involves the use of captive animals or surrogate species, as their accelerometer signatures are generally ...
Pagano, AM, Rode, KD, Cutting, A, Owen, MA, Jensen, S, Ware, JV, Robbins, CT, Durner, GM, Atwood, TC, Obbard, ME, Middel, KR, Thiemann, GW, Williams, TM   +12 more
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

Comparison of Magnetic Flux Distribution between a Coronal Hole and a Quiet Region

, 2007
Employing Big Bear Solar Observatory (BBSO) deep magnetograms and H${\alpha}$ images in a quiet region and a coronal hole, observed on September 14 and 16, 2004, respectively, we have explored the magnetic flux emergence, disappearance and distribution ...
Chiuderi Drago F., Haimin Wang, Jun Ma, Jun Zhang, Keller C. J., Livingston W. C., Meunier N., Solanki S. K., Zhang J., Zhang J.   +9 more
core   +1 more source

Case Studies of Bear Cub Development Under Unique Rearing Conditions [PDF]

Animal Behavior and Cognition
Zoo-based polar bear (Ursus maritimus) literature is heavily biased towards reproduction and neonate development, or the behavioral management of adult individuals, often excluding the critical juvenile developmental period between den emergence and ...
Kylen N. Gartland, Grace Fuller
doaj   +1 more source

Production of a short-lived filament by a surge [PDF]

, 1976
A large surge was observed on September 17, 1971 part of which, after travelling 200,000 km across the surface, returned to the surface to form a filament. The filament lasted about 30 minutes, then rose up and returned to the source of the surge.
Zirin, H.
core   +1 more source

Polar Bear [PDF]

The American Biology Teacher, 2021
openaire   +1 more source

Ancestral polymorphisms and sex-biased migration shaped the demographic history of brown bears and polar bears.

PLoS ONE, 2013
Recent studies have reported discordant gene trees in the evolution of brown bears and polar bears. Genealogical histories are different among independent nuclear loci and between biparentally inherited autosomal DNA (aDNA) and matrilineal mitochondrial ...
Shigeki Nakagome, Shuhei Mano, Masami Hasegawa   +2 more
doaj   +1 more source

Captive polar bears

Animal Welfare, 1993
Sir, Might I comment on Alison Ames’ review of Ormrod's Captive Polar Bear Report (Animal Welfare 1993, 2: 290292).
openaire   +1 more source

Climate change and the increasing impact of polar bears on bird populations

Frontiers in Ecology and Evolution, 2015
The Arctic is becoming warmer at a high rate, and contractions in the extent of sea ice are currently changing the habitats of marine top-predators dependent on ice. Polar bears (Ursus maritimus) depend on sea ice for hunting seals.
Jouke eProp, Jon eAars, Bård-Jørgen eBårdsen, Sveinn Are eHanssen, Claus eBech, Sophie eBourgeon, Jimmy ede Fouw, Geir Wing eGabrielsen, Johannes eLang, Johannes eLang, Elin eNoreen, Thomas eOudman, Benoit eSittler, Benoit eSittler, Lech eStempniewicz, Ingunn eTombre, Eva eWolters, Børge eMoe   +17 more
doaj   +1 more source

Processing references in context: when the polar bear does not meet a polar bear. [PDF]

Cogn Process, 2023
Rolke B, Kirsten M, Seibold VC, Dietrich S, Hertrich I.   +4 more
europepmc   +1 more source