Results 31 to 40 of about 446,324 (293)

Circadian activity of small brown bear populations living in human-dominated landscapes

Scientific Reports, 2022
Whereas numerous studies on large carnivores have focused on analyzing spatial patterns and habitat use, the temporal dimension of their activity has been relatively little investigated, making this a topic of growing interest, especially in human ...
Aurora Donatelli, Gianluca Mastrantonio, Paolo Ciucci   +2 more
doaj   +1 more source

Phenological overlap of terrestrial and marine food resources did not reduce salmon consumption by Kodiak brown bears

Global Ecology and Conservation, 2023
Climate change is altering the predictability of timing of resource pulses and how consumers interact with them, resulting in phenomena placed under the trophic mismatch hypothesis (TMH).
S.P. Finnegan, N.J. Svoboda, S.L. Schooler, J.L. Belant   +3 more
doaj   +1 more source

Density and reproductive characteristics of female brown bears in the Cantabrian Mountains, NW Spain [PDF]

, 2018
Here we present annual nearest-neighbour distances (as a proxy of density) between females with cubs-of-the-year (hereafter FCOY) and reproductive characteristics of brown bears Ursus arctos in the Cantabrian Mountains (NW Spain), from 1989 to 2017. FCOY
Bombieri, Giulia, Cañedo, D., Delgado Sánchez, María Mar, Díaz García, J., Fernández Otero, M., Penteriani Dragone, Vincenzo, Peón Torre, Paloma, Sánchez Corominas, T., Vázquez García, P., Vázquez, V. M., Zarzo Arias, Alejandra   +10 more
core   +2 more sources

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

Geographic structure and demographic history of Iranian brown bear (Ursus arctos) based on mtDNA control region sequences [PDF]

تاکسونومی و بیوسیستماتیک, 2015
In recent years, the brown bear's range has declined and its populations in some areas have faced extinction. Therefore, to have a comprehensive picture of genetic diversity and geographic structure of populations is essential for effective ...
Mohammad Reza Ashrafzadeh, Mohammad Kaboli, Mohammad Reza Naghavi, Habibollah Haghi, Mahmoud Shakiba, Koros Rabiee, Davoud Ghanipour, Mahdi Ansari   +7 more
doaj  

Monitoring follicular dynamics to determine estrus type and timing of ovulation induction in captive brown bears (Ursus arctos)

The Journal of Reproduction and Development, 2020
It is important to understand ovarian physiology when developing an artificial insemination (AI) protocol. Brown bears (Ursus arctos) have a breeding season from May to July, although the type of estrus (polyestrus or monoestrus) is still contested.
Yoshiko TORII, Naoya MATSUMOTO, Hideyuki SAKAMOTO, Masashi NAGANO, Seiji KATAGIRI, Yojiro YANAGAWA   +5 more
doaj   +1 more source

Staying out in the cold: glacial refugia and mitochondrial DNA phylogeography in ancient European brown bears [PDF]

, 2007
Models for the development of species distribution in Europe typically invoke restriction in three temperate Mediterranean refugia during glaciations, from where recolonization of central and northern Europe occurred.
Aldhouse-Green, Anderung, Avise, Barnes, Bennett, Bilton, Borziac, Clot, Crégut-Bonnoure, Dalén, Damblon, David, Delpech, Edmonds, Evin, Gilbert, Guindon, Haak, Haesaerts, Hewitt, Hewitt, Hewitt, Hewitt, Hewitt, Hofreiter, Hofreiter, Huelsenbeck, Hänni, Irwin, Kohn, Kotlik, Krause, Kukla, Leonard, Leonard, Loreille, Mcloughlin, Musil, Nei, Nei, Pasitschniak, Randi, Randi, Ronquist, Rowe, Saarma, Sabol, Schneider, Servheen, Sommer, Sommer, Stewart, Taberlet, Taberlet, Taberlet, Terberger, Vogel, Waits, Webb, Willis, Yang   +60 more
core   +2 more sources

Partial genomic survival of cave bears in living brown bears [PDF]

Nature Ecology & Evolution, 2018
Although many large mammal species went extinct at the end of the Pleistocene epoch, their DNA may persist due to past episodes of interspecies admixture. However, direct empirical evidence of the persistence of ancient alleles remains scarce. Here, we present multifold coverage genomic data from four Late Pleistocene cave bears (Ursus spelaeus complex)
Barlow, Axel, Cahill, James A., Hartmann, Stefanie, Theunert, Christoph, Xenikoudakis, Georgios, Fortes, Gloria G., Paijmans, Johanna L. A., Rabeder, Gernot, Frischauf, Christine, Grandal-d’Anglade, Aurora, García-Vázquez, Ana, Murtskhvaladze, Marine, Saarma, Urmas, Anijalg, Peeter, Skrbinšek, Tomaž, Bertorelle, Giorgio, Gasparian, Boris, Bar-Oz, Guy, Pinhasi, Ron, Slatkin, Montgomery, Dalén, Love, Shapiro, Beth, Hofreiter, Michael   +22 more
openaire   +8 more sources

Behaviour of solitary adult Scandinavian brown bears (Ursus arctos) when approached by humans on foot. [PDF]

PLoS ONE, 2012
Successful management has brought the Scandinavian brown bear (Ursus arctos L.) back from the brink of extinction, but as the population grows and expands the probability of bear-human encounters increases.
Gro Kvelprud Moen, Ole-Gunnar Støen, Veronica Sahlén, Jon E Swenson   +3 more
doaj   +1 more source

A brown bear population estimate for Finnmark County, North Norway

Fauna Norvegica
We have estimated the average number of brown bears Ursus arctos L. in Finnmark, the northernmost county in Norway. We started by estimating the number of bears where reproduction has been documented in the Pasvik Valley (1,330 km2) and published ...
Jon E. Swenson, Steinar Wikan
doaj   +1 more source