Edible ant availability and distribution as resources for the Asiatic black bear
The Asiatic black bear (Ursus thibetanus) is a generalist omnivore consuming a wide range of food items, including ants (family Formicidae) and other social insects during summer. The distribution of ant resources is thought to influence habitat selection by Asiatic black bear. We investigated the distribution of ant resources during summer in bear habitat in […]
Noninvasive genetic assessment of sloth bear diversity and population structure in Nepal
The genetic diversity of wildlife populations is crucial in maintaining their fitness and resilience to environmental changes and disease. Despite their rarity, ecological importance, and being an endangered species of public concern, information on sloth bears (Melursus ursinus) from Nepal is limited, and they are yet to receive conservation priority. To address this gap, we […]
Quantifying recovery of British Columbia’s South Selkirk grizzly bear population
Small, isolated wildlife populations are often at great conservation risk. Quantitative monitoring of their conservation status over time and evidence of recovery is relatively rare. We carried out population surveys of grizzly bears (Ursus arctos) pre– (2005) and post– (2020–2021) conservation management, to assess the efficacy of strategic measures applied to the at-risk Canadian South […]
Sloth bear denning behavior in eastern Karnataka, India
Eastern Karnataka, India, has abundant sloth bear (Melursus ursinus) habitat made up of rocky scrub jungle and an abundance of naturally occurring caves, which the bears use for resting (day) and natal or neonatal dens. We deployed cameras on active dens from 2014 to 2018 and collected sloth bear resting and maternal denning behavior. We […]
Drivers of Arctic female grizzly movement-related habitat use from den emergence to green-up
Arctic female grizzly bears (Ursus arctos) with cubs face a challenging period following den emergence to find quality resources when risk of infanticide is high and food is scarce. We used global positioning system (GPS) telemetry data grouped by reproductive state (solitary, females with cubs
Tolerance for grizzly bears and trust in management among residents of the Bitterroot Ecosystem, Idaho
Grizzly bears (Ursus arctos horribilis) were extirpated from central Idaho’s Bitterroot Ecosystem (BE) in the United States by the 1940s. Since a failed attempt to reintroduce grizzlies to the BE in the 1990s, individuals have been documented in the region since 2007, indicating potential natural recovery in the future. Moreover, as of 2023, the U.S. […]
Mapping habitat suitability of the brown bear in Artvin-Şavşat region, Turkey
We aimed to build seasonal habitat suitability models and maps for brown bear (Ursus arctos), which are distributed in the Artvin-Şavşat region of northeastern Turkey. Between May 2018 and May 2020, 200 camera traps were deployed using an opportunistic camera-trap method. Over 280,000 images were captured during 121,140 camera-trap days, with images including 1,860 brown […]
Denning black bear response to anthropogenic disturbance and implications for cub survival in Florida
Wildlife research and management can be disruptive to wildlife. By advancing our understanding of the impacts of these activities, we can reduce adverse effects, improve decision-making, and enhance the outcomes of research and management. During 2017–2019, we observed the responses of denning female American black bears (Ursus americanus) to 3 types of routine research and […]
Activity patterns of the Asiatic black bear in the Russian Far East based on camera-trap data
Species’ activity patterns are driven by the need to meet basic requirements such as food, social interactions, movement, and rest. A variety of biotic and abiotic factors often influence these behaviors. From 2011 to 2021 we used camera-trap data to describe and compare the seasonal and daily activity patterns of the relatively poorly studied Asiatic […]
Bonding behavior of sister brown bears with different-aged offspring
This paper documents and describes the behavior of 2 sibling female brown bears (Ursus arctos) and their cubs as they bonded at Brooks River in Katmai National Park, Alaska, USA. Between mid- August and October 2022 the adult female bears and their cubs behaved much like a single family. The same-aged mothers each had a […]