Results 31 to 40 of about 56,629 (301)

Habitat Selection by Brown Bears with Varying Levels of Predation Rates on Ungulate Neonates

Diversity, 2021
In northern Eurasia, large carnivores overlap with semi-domestic reindeer (Rangifer tarandus) and moose (Alces alces). In Scandinavia, previous studies have quantified brown bear (Ursus arctos) spring predation on neonates of reindeer (mostly in May) and
Kate Twynham, Andrés Ordiz, Ole-Gunnar Støen, Geir-Rune Rauset, Jonas Kindberg, Peter Segerström, Jens Frank, Antonio Uzal   +7 more
doaj   +1 more source

Phylogeography of Mitochondrial DNA Variation in Brown Bears and Polar Bears [PDF]

Molecular Phylogenetics and Evolution, 2000
We analyzed 286 nucleotides of the middle portion of the mitochondrial cytochrome b gene of 61 brown bears from three locations in Alaska and 55 polar bears from Arctic Canada and Arctic Siberia to test our earlier observations of paraphyly between polar bears and brown bears as well as to test the extreme uniqueness of mitochondrial DNA types of brown
G F, Shields, D, Adams, G, Garner, M, Labelle, J, Pietsch, M, Ramsay, C, Schwartz, K, Titus, S, Williamson   +8 more
openaire   +4 more sources

Analyses of key genes involved in Arctic adaptation in polar bears suggest selection on both standing variation and de novo mutations played an important role

BMC Genomics, 2020
Background Polar bears are uniquely adapted to an Arctic existence. Since their relatively recent divergence from their closest living relative, brown bears, less than 500,000 years ago, the species has evolved an array of novel traits suited to its ...
Jose Alfredo Samaniego Castruita, Michael V. Westbury, Eline D. Lorenzen   +2 more
doaj   +1 more source

Brown bear attacks on humans: a worldwide perspective [PDF]

Scientific Reports, 2019
AbstractThe increasing trend of large carnivore attacks on humans not only raises human safety concerns but may also undermine large carnivore conservation efforts. Although rare, attacks by brown bears Ursus arctos are also on the rise and, although several studies have addressed this issue at local scales, information is lacking on a worldwide scale.
G. Bombieri, J. Naves, V. Penteriani, N. Selva, A. Fernández-Gil, J. V. López-Bao, H. Ambarli, C. Bautista, T. Bespalova, V. Bobrov, V. Bolshakov, S. Bondarchuk, J. J. Camarra, S. Chiriac, P. Ciucci, A. Dutsov, I. Dykyy, J. M. Fedriani, A. García-Rodríguez, P. J. Garrote, S. Gashev, C. Groff, B. Gutleb, M. Haring, S. Härkönen, D. Huber, M. Kaboli, Y. Kalinkin, A. A. Karamanlidis, V. Karpin, V. Kastrikin, L. Khlyap, P. Khoetsky, I. Kojola, Y. Kozlow, A. Korolev, N. Korytin, V. Kozsheechkin, M. Krofel, J. Kurhinen, I. Kuznetsova, E. Larin, A. Levykh, V. Mamontov, P. Männil, D. Melovski, Y. Mertzanis, A. Meydus, A. Mohammadi, H. Norberg, S. Palazón, L. M. Pătrașcu, K. Pavlova, P. Pedrini, P. Y. Quenette, E. Revilla, R. Rigg, Y. Rozhkov, L. F. Russo, A. Rykov, L. Saburova, V. Sahlén, A. P. Saveljev, I. V. Seryodkin, A. Shelekhov, A. Shishikin, M. Shkvyria, V. Sidorovich, V. Sopin, O. Støen, J. Stofik, J. E. Swenson, D. Tirski, A. Vasin, P. Wabakken, L. Yarushina, T. Zwijacz-Kozica, M. M. Delgado   +77 more
openaire   +10 more sources

Movement ecology of brown bears (Ursus arctos) in the Romanian Eastern Carpathians

Nature Conservation, 2018
Brown bear movement patterns are driven by their opportunistic feeding behaviour, with their complex life history and seasonality playing an important role in habitat selection.
Ioan Mihai Pop, Leonardo Bereczky, Silviu Chiriac, Ruben Iosif, Andreea Nita, Viorel Dan Popescu, Laurențiu Rozylowicz   +6 more
doaj   +3 more sources

DISSEMINATION OF TRICHINELLOSIS (TRICHINELLA RAILLIET, 1895) IN PREYING MAMMALS WITHIN YAKUTIA AREA

Российский паразитологический журнал, 2016
Materials and methods. Epizootic situation and distribution of trichinellosis in carnivorous mammals (wolf, fox, white bear, brown bear, wolverine, lynx) in the territory of Yakutia were studied. Trichinellosis was detected in five of six examined animal
V. A. Odnokurtsev, V. T. Sedalischev, I. M. Okhlopkov, E. A. Nikolayev, N. V. Mamaev   +4 more
doaj   +1 more source

Non‐invasive mark–resight surveys for brown bears: Incorporating spatial information to improve landscape‐scale monitoring of density and distribution

Ecological Solutions and Evidence, 2023
Effective wildlife monitoring and management are reliant on unbiased estimators of population parameters. Most standard survey approaches ignore spatial pattern in the data although spatial relationships can be leveraged to produce more efficient designs
Joshua H. Schmidt, William W. Deacy, Letty J. Hughes, Dylan T. Schertz   +3 more
doaj   +1 more source

Brown Bear, Brown Bear, What Do You See? [PDF]

Early Years Educator, 2004
Join Brown Bear, Red Bird and lots of other animals to discover a world of rhythm, rhyme and colour in one of Eric Carle's best loved picture books. By Hilary White.
openaire   +1 more source

Cryopreservation of Brown Bear Skin Biopsies [PDF]

Cell Preservation Technology, 2008
Genetic resource banks and assisted reproductive technologies support the conservation of endangered or threatened species. In this study we assessed two procedures to cryopreserve skin biopsies from live brown bears. Skin biopsies were taken from six live, anesthetized brown bears.
Caamaño, J.N. (José), Rodríguez, A., Muñoz, M., Frutos, C., Díez, C., Gómez, E.   +5 more
openaire   +4 more sources

Integrating sign surveys and telemetry data for estimating brown bear (Ursus arctos) density in the Romanian Carpathians

Ecology and Evolution, 2017
Accurate population size estimates are important information for sustainable wildlife management. The Romanian Carpathians harbor the largest brown bear (Ursus arctos) population in Europe, yet current management relies on estimates of density that lack ...
Viorel D. Popescu, Ruben Iosif, Mihai I. Pop, Silviu Chiriac, George Bouroș, Brett J. Furnas   +5 more
doaj   +1 more source