Results 101 to 110 of about 11,111 (208)

Polar bear attacks on humans: Implications of a changing climate

open access: yesWildlife Society Bulletin, 2017
Understanding causes of polar bear (Ursus maritimus) attacks on humans is critical to ensuring both human safety and polar bear conservation. Although considerable attention has been focused on understanding black (U. americanus) and grizzly (U.
James M. Wilder   +9 more
doaj   +1 more source

Modeliranje koridora kretanja medvjeda (Ursus arctos Linnaeus, 1758) u Hrvatskoj [PDF]

open access: yes, 2017
Bear (Ursus arctos) is the largest terrestical carnivore in Croatia and one of three large carnivores which live in Croatia. Along with population in Slovenia and Bosnia and Hercegovina, bears in Croatia represent the most western and stable population of bears in Europe.
openaire  

Registro actualizado de Oso de las Cavernas y otras especies del género Ursus en la República Checa [PDF]

open access: yes, 2001
[Abstract] During the 2nd half of 20th century, a succession of new Pleistocene localities was discovered and some classical paleontological sites were revised. From many of those places also bear remains were recorded.
Wagner, J.
core   +1 more source

Brown Bear Consumption of Pacific Salmon Varies Greatly Among Individuals but Increases With the Bear's Age and Salmon Availability

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
Hair was sampled in a noninvasive manner from free‐living brown bears in Alaska and processed for genetic identification and stable isotopes. These data revealed great individual variation in bear reliance on salmon, despite being sampled along streams full of salmon.
Thomas P. Quinn   +9 more
wiley   +1 more source

Un pequeño Oso de las Cavernas (Ursus rossicus) del Sur de Siberia, Rusia BARYSHNIKOV, G. [PDF]

open access: yes, 2001
[Abstract] The skull, mandibles and cheek teeth of U. Rossicus from four localities of the South Siberia are examined. This species inhabited the steppe regions in early Middle and Late Pleistocene. By odontological characters it is more close to U.
Baryshnikov, G., Foronova, I.
core   +1 more source

Hibernation Shifts in Gut Microbiota Composition and Metabolic Function in the Chinese Horseshoe Bat (Rhinolophus sinicus)

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
The composition and dynamics of gut microbial community structure in Rhinolophus sinicus, employing 16S rRNA amplicon sequencing, are conducted to investigate the effects of physiological status (winter hibernation versus summer activity) on gut microbiota composition.
Weiwei Shao   +4 more
wiley   +1 more source

Análisis morfológico y métrico de la dentición y metapodios del oso de Deninger (Ursus deningeri Van Reichenau) de la Cueva Sta Isabel de Ranero. Aminocronología (Valle de Carranza Bizkaia - País Vasco) [PDF]

open access: yes, 2001
Se realiza un análisis métrico y morfológico de la dentición y melapodios del material de Ursus deningeriexcavado en la Cueva santa Isabel en Ranero lBi2~aial. Los resultados obtenidos se comparan con los de otras poblaciones ibéricas de U.
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

Where Dinner Roams: The Role of Feral Horses as a Resource Subsidy for Wolves and Cougars in West‐Central British Columbia

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
In west‐central British Columbia, large populations of feral horses overlap with native species like caribou and predators such as wolves and cougars, potentially disrupting predator–prey dynamics. Between 2019 and 2025, researchers documented multiple instances of wolf and cougar predation on feral horses—the first such confirmed cases in the region ...
Shane C. White   +3 more
wiley   +1 more source

Ursids evolved dietary diversity without major alterations in metabolic rates

open access: yesScientific Reports
The diets of the eight species of ursids range from carnivory (e.g., polar bears, Ursus maritimus) to insectivory (e.g., sloth bears, Melursus ursinus), omnivory (e.g., brown bears, U.
A. M. Carnahan   +4 more
doaj   +1 more source

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