Mostrando 141 - 160 Resultados de 250 Para Buscar '"Ursus arctos"', tiempo de consulta: 0.11s Limitar resultados
  1. 141
    “…For the Scandinavian brown bear (Ursus arctos), the hunting season coincides with the period of hyperphagia. …”
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    Temporal effects of hunting on foraging behavior of an apex predator: Do bears forego foraging when risk is high?
  2. 142
    “…Using detailed individual monitoring of a hunted population of brown bears (Ursus arctos) in Sweden (1991–2011), we assessed the spatiotemporal effect of male removal on cub survival. 3. …”
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    Hunting promotes sexual conflict in brown bears
  3. 143
    por Frank, Jens, Eklund, Ann
    Publicado 2017
    “…Large carnivore conservation may be considered as successful in Sweden, as wolf (Canis lupus), lynx (Lynx lynx), brown bear (Ursus arctos), golden eagles (Aquila chrysaetos), and wolverine (Gulo gulo) populations have recovered from extinction or near extinction to viable populations during the last three decades. …”
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    Poor construction, not time, takes its toll on subsidised fences designed to deter large carnivores
  4. 144
    “…Past research indicates that whitebark pine seeds are a critical food source for Threatened grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem (GYE). …”
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    Selecting the best stable isotope mixing model to estimate grizzly bear diets in the Greater Yellowstone Ecosystem
  5. 145
    “…Here we quantify, with unprecedented detail, the contribution of humans and climate change to the Holocene decline of the largest living terrestrial carnivore, the brown bear (Ursus arctos), on a continental scale. We inform a spatially explicit metapopulation model for the species by combining life-history data and an extensive archaeofaunal record from excavations across Europe with reconstructed climate and land-use data reaching back 12,000 years. …”
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    Humans and climate change drove the Holocene decline of the brown bear
  6. 146
    “…Here, we compare the effectiveness of five types of hair traps for brown bears Ursus arctos in the Carpathian Mountains (SE Poland) and test the effects of trap type, season, number of days elapsed since trap installation and trap features on the trapping success in order to provide recommendations for optimal sampling in future studies. …”
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    Effectiveness of different types of hair traps for brown bear research and monitoring
  7. 147
    “…We have estimated these parameters using the linkage disequilibrium‐based approach with LDNE through the latest phase of population recovery of the brown bears (Ursus arctos) in Finland (1993–2010; N = 621). This phase of the recovery was recently documented to be associated with major changes in genetic composition. …”
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    Genetic substructure and admixture as important factors in linkage disequilibrium‐based estimation of effective number of breeders in recovering wildlife populations
  8. 148
    “…We applied spatially explicit capture recapture (SECR) methods, combined with density surface modelling from five grizzly bear (Ursus arctos) management areas (BMAs) in Alberta, Canada, to assess SECR methods and to explore factors influencing bear distribution. …”
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    Using spatial mark-recapture for conservation monitoring of grizzly bear populations in Alberta
  9. 149
    “…Managing the number of grizzly bear (Ursus arctos) mortalities to a sustainable level is fundamental to bear conservation. …”
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    Estimating unrecorded human-caused mortalities of grizzly bears in the Flathead Valley, British Columbia, Canada
  10. 150
    “…In general, brown bears Ursus arctos avoid humans and their settlements, but they may use some areas close to people or human infrastructures. …”
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    Patterns of brown bear damages on apiaries and management recommendations in the Cantabrian Mountains, Spain
  11. 151
    “…There are 15 extant species in Portugal, with nine occurring across the country, six showing a more limited range, as well as one additional species currently locally extinct (Ursus arctos). Over the last decades, the distribution ranges of seven species apparently remained stable, two expanded, two contracted, and three showed unclear trends. …”
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    Research trends and geographical distribution of mammalian carnivores in Portugal (SW Europe)
  12. 152
    “…In the Strictly Protected Area Zorkul in Tajikistan (Zorkul Reserve), grazing is commonplace despite official prohibition, with potentially detrimental effects on local fauna, in particular, snow leopard Panthera uncia, wolf Canis lupus, brown bear Ursus arctos, argali sheep Ovis ammon, Asiatic ibex Capra sibirica, and long-tailed marmot Marmota caudata. …”
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    Responses of snow leopards, wolves and wild ungulates to livestock grazing in the Zorkul Strictly Protected Area, Tajikistan
  13. 153
    “…Based on monitoring of 53 brown bears (Ursus arctos) and seven sympatric adult gray wolves (Canis lupus) equipped with GPS collars in Sweden, we analyzed the degree of interspecific segregation in habitat selection within their home ranges in both late winter and spring, when their diets overlap the most. …”
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    Habitat segregation between brown bears and gray wolves in a human‐dominated landscape
  14. 154
    “…We assessed the effectiveness of the closure on nine mammal species using three sets of data: remote cameras, road surveys, and grizzly bear (Ursus arctos) GPS data. In all three analyses, wildlife detection rates on the road doubled during the closure while remaining unchanged in reference areas. …”
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    Temporal road closures improve habitat quality for wildlife
  15. 155
    “…We used footprint tracking data and landscape characteristics in Romania to investigate the occurrence of brown bear (Ursus arctos), gray wolf (Canis lupus) and Eurasian lynx (Lynx lynx) and to compare model predictions between Natura 2000 and national-level protected areas (gap analysis). …”
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    Large carnivore habitat suitability modelling for Romania and associated predictions for protected areas
  16. 156
    “…This study examines grizzly bear (Ursus arctos) spring habitat selection and use across western Alberta, Canada. …”
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    Grizzly bear response to fine spatial and temporal scale spring snow cover in Western Alberta
  17. 157
    “…The current phylogeographic pattern of European brown bears (Ursus arctos) has commonly been explained by postglacial recolonization out of geographically distinct refugia in southern Europe, a pattern well in accordance with the expansion/contraction model. …”
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    Genetic turnovers and northern survival during the last glacial maximum in European brown bears
  18. 158
    “…The present study uses RNA-sequencing to reveal the tissue and seasonal transcriptional changes occurring in grizzly bears (Ursus arctos horribilis). Comparing hibernation to other seasons, bear adipose has a greater number of differentially expressed genes than liver and skeletal muscle. …”
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    Hibernation induces widespread transcriptional remodeling in metabolic tissues of the grizzly bear
  19. 159
    “…We documented the diet of the Himalayan brown bear (Ursus arctos isabellinus) by combining classical scat analysis and a newly developed molecular genetic technique (the trnL approach), in Deosai National Park, Pakistan. …”
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    Diet of the brown bear in Himalaya: Combining classical and molecular genetic techniques
  20. 160
    “…We compared HCC in paired subsamples of hair with and without follicles from 30 free-ranging Scandinavian brown bears (Ursus arctos) and observed significantly greater HCC in samples with follicles present. …”
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    Do follicles matter? Testing the effect of follicles on hair cortisol levels
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