Results 71 to 80 of about 7,621 (257)
Ecology and Evolution, Volume 16, Issue 4, April 2026.In this work, we integrate existing knowledge on interaction strengths into a conceptual model of the Svalbard Ecological Network. We also highlight current knowledge gaps and challenges in establishing a robust baseline of species interactions in the region.
Mikhail K. Zhemchuzhnikov +4 more
wiley +1 more source
Diversity, 2022 Antibodies to several pathogens were detected in the serum samples of nine polar bears (Ursus maritimus, Phipps, 1774) from areas of the Russian Arctic. Plasma was studied for antibodies to sixteen infectious and parasitic diseases using indirect Protein-
Alexander Yu. Alekseev +5 more
doaj +1 more source
Un pequeño Oso de las Cavernas (Ursus rossicus) del Sur de Siberia, Rusia BARYSHNIKOV, G. [PDF]
, 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.
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South American giant short-faced bear (Arctotherium angustidens) diet: evidence from pathology, morphology, stable isotopes, and biomechanics [PDF]
, 2014 Fil: Soibelzon, Leopoldo Héctor. División Paleontología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Grinspan, Gustavo A.. Núcleo de Biomecánica. Espacio Interdisciplinario.
Acosta, Walter G. +6 more
core +1 more source
, 1993 {"references": ["Wilson, D. E. 1976. Cranial variation in polar bears. Pp. 447 - 453, in Bears- - their biology and management (M. R. Pelton, J. W. Lentfer, and G. E. Folk, eds.). International Union for the Conservation of Nature, n. s., 40: 1 - 467", "DeMaster, D. P., and I. Stirling. 1981. Ursus maritimus. Mammalian Species, 145: 1 - 7.", "Gromov, I.
openaire +1 more source
Genomics Insights Into High‐Latitude Adaptation of Tibetan Macaques
Advanced Science, Volume 13, Issue 14, 9 March 2026.Tibetan macaques exhibit unique adaptations to cold, high‐latitude environments, including shortened tails and enhanced fat storage. Genomic analyses reveal a species‐specific TBX6 mutation linked to tail reduction and selection on lipid metabolism genes.
Rusong Zhang +12 more
wiley +1 more source
BRUCELLA SPECIES SURVEY IN POLAR BEARS (URSUS MARITIMUS) OF NORTHERN ALASKA [PDF]
Journal of Wildlife Diseases, 2010 We report on the presence of specific antibodies to Brucella spp. and Yersinia enterocolitica in polar bears (Ursus maritimus) from northern Alaska (southern Beaufort Sea) during 2003-2006. Based on numerous known stressors (e.g., climate change and loss of sea ice habitat, contaminants), there is increased concern regarding the status of polar bears ...
O'Hara, Todd M. +6 more
openaire +2 more sources
Ecology and Evolution, Volume 16, Issue 3, March 2026.Few studies have simultaneously assessed multiple sources of variation in maternal energy allocation and how allocation might vary over a female's lifetime. We used 20 years of cross‐sectional and longitudinal data on 222 known‐age grey seals, which was collected as part of long‐term monitoring programme of grey seals that breed on Sable Island ...
M. Sanchez +3 more
wiley +1 more source
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 +3 more
doaj +1 more source
T-lymphocyte-rich thymoma and myasthenia gravis in a Siberian tiger (Panthera tigris altaica) [PDF]
, 2014 A 10-year-old captive male Siberian tiger (Panthera tigris altaica) presented with acute onset collapse, vomiting and dyspnoea, preceded by a 6-month period of progressive muscle wasting.
A. Routh +31 more
core +1 more source