Results 61 to 70 of about 2,387,962 (195)

Comparative Trends of Sociality Among Terrestrial Carnivores: A Multivariate Analysis 陆生食肉动物社会性的比较趋势:一项多变量分析

open access: yesWildlife Letters, EarlyView.
In this study we analyze the role of phylogeny, environment, and community structure on sociality. Using structural equation modeling (SEM) we aim to quantify the direct and indirect impacts of variables on behaviors including social grouping, reproduction, and space use among Carnivora species.
Jessica Ward   +3 more
wiley   +1 more source

Human–bear conflict in Alaska: 1880–2015

open access: yesWildlife Society Bulletin, 2018
We present an analysis of human–bear (Ursus spp.) conflicts that occurred in Alaska, USA, from 1880 to 2015. We collected 682 human–bear conflicts, consisting of 61,226 data entries, from various sources available to us.
Tom S. Smith, Stephen Herrero
doaj   +1 more source

Portable X‐Ray Fluorescence in the Assessment of Zinc Along Grizzly Bear Hair

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT As a biomarker of past uptake of zinc, hair presents an interesting option since its growth can provide a stored record over time. This study investigates the distribution of zinc in hairs gathered from a series of grizzly bears (Ursus arctos horribilis).
David E. B. Fleming   +2 more
wiley   +1 more source

Utility of the bucket cable trap to capture American black bears

open access: yesWildlife Society Bulletin, 2018
Most American black bear (Ursus americanus) population studies involving live capture have used foot‐hold restraints or barrel and culvert traps, but new capture methods, including the bucket cable trap, are increasingly being used by wildlife management
Morgan A. Pfander, Wendelyn S. Fairbanks
doaj   +1 more source

Metabolic Changes in Summer Active and Anuric Hibernating Free-Ranging Brown Bears (Ursus arctos)

open access: yesPLoS ONE, 2013
The brown bear (Ursus arctos) hibernates for 5 to 6 months each winter and during this time ingests no food or water and remains anuric and inactive.
P. Stenvinkel   +14 more
semanticscholar   +1 more source

Climatic–Anthropogenic Synergy Drives Escalating Minimum Area Requirements and Connectivity‐Protection Mismatch in a Karst‐Endemic Primate

open access: yesIntegrative Zoology, EarlyView.
Climate change and anthropogenic activities drive antagonistic degradation of landscape connectivity for endangered François’ langur (1987–2024), causing 48.8% habitat loss, north‐south fragmentation, and centroid migration (1.2 km/yr). Despite protected areas buffering connectivity, static management fails dynamic priority habitats; we propose ...
Guangmei Yang   +5 more
wiley   +1 more source

A capture–recapture framework for combining biologging data with physical captures to decompose and estimate demographic rates: Simulations across life cycles and application to polar bears

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Estimating demographic rates of wild populations is critical to understanding their dynamics but can be challenging because large amounts of data are required, and parts of the life cycle of individuals may be unobserved. In numerous research programmes, capture–recapture (CR) data and biologging data are collected in parallel.
Marwan Naciri   +5 more
wiley   +1 more source

Food Subsidies Reduce Livestock Depredations by a Recovering Carnivore

open access: yesAnimal Conservation, EarlyView.
Diversionary feeding—providing food caches to divert predators away from preying on livestock—is a strategy to reduce depredations by Mexican gray wolves but has not been evaluated for its effectiveness. We used data from the Mexican wolf recovery program from 2014‐2021 to evaluate whether diversionary feeding reduced livestock depredations by wolf ...
Matthew Hyde   +8 more
wiley   +1 more source

A complete mitochondrial genome sequence of Asian black bear Sichuan subspecies (Ursus thibetanus mupinensis)

open access: yesInternational Journal of Biological Sciences, 2007
We obtained the complete mitochondrial genome of U.thibetanus mupinensis by DNA sequencing based on the PCR fragments of 18 primers we designed. The results indicate that the mtDNA is 16 868 bp in size, encodes 13 protein genes, 22 tRNA genes, and 2 rRNA
Wan-ru Hou, Yu Chen, Xia Wu, Jin-chu Hu, Zheng-song Peng, Jung Yang, Zong-xiang Tang, Cai-Quan Zhou, Yu-ming Li, Shi-kui Yang, Yu-jie Du, Ling-lu Kong, Zheng-long Ren, Huai-yu Zhang, Su-rong Shuai
doaj  

Spatial Analysis of Factors Influencing Long-Term Stress in the Grizzly Bear (Ursus arctos) Population of Alberta, Canada

open access: yesPLoS ONE, 2013
Non-invasive measures for assessing long-term stress in free ranging mammals are an increasingly important approach for understanding physiological responses to landscape conditions.
Mathieu L. Bourbonnais   +4 more
semanticscholar   +1 more source

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