Results 51 to 60 of about 4,679 (183)

The American Black Bear (Ursus americanus) as an Apex Predator: Investigating the Ecological Role of the World's Most Abundant Large Carnivore

Mammal Review, Volume 56, Issue 1, March 2026.
Black bears as apex predators. American black bears can (1) produce top‐down effects on ungulates equal to or exceeding those of typical apex predators and (2) modify the spatiotemporal behaviour of other carnivores, including pumas and coyotes. We argue that the term ‘apex predator’ is highly context dependent and not a species‐wide status.
John M. Nettles, Caroline M. Abramowitz, Wesley W. Boone, Stephen N. Harris, Chloe E. Horton, Meghan P. Keating, Dana L. Nelson, Samantha N. Smith, Katelyn N. Steen, Erin K. Buchholtz, David S. Jachowski   +10 more
wiley   +1 more source

Validation of grizzly bear hair hormone profiles as a tool to monitor population demographics

The Journal of Wildlife Management, Volume 90, Issue 2, February 2026.
We measured 16 steroid and thyroid hormone concentrations in grizzly bear hair to predict sex, age class, and reproductive status. Models were highly accurate when predicting sex and age class and showed promise for assessing reproductive status. Results illustrate the potential for hair hormone profiles as non‐invasive population monitoring tools ...
Abbey E. Wilson, Cameron J. R. McClelland, Sarah A. Michaud, Jun Han, Gordon Stenhouse, David R. Goodlett, Kristenn Magnusson, Karen Graham, Hugo Fernández‐Bellon, David M. Janz, Darío Fernández‐Bellon   +10 more
wiley   +1 more source

Quantifying the potential health risk of surface waters in the Qinling giant panda habitat

Frontiers in Environmental Science
The giant panda (Ailuropoda melanoleuca) is recognized worldwide as an icon for wildlife conservation. The Qinling subspecies (Ailuropoda melanoleuca qinlingensis) inhabiting the Qinling Mountains is more endangered.
Ying-Juan Zheng, Ying-Juan Zheng, Yi-Ping Chen, Yan Zhao, Lorraine Maltby, Wan-Gang Liu   +5 more
doaj   +1 more source

Relationship Between Testosterone and Movement Patterns in Male Asian Black Bear (Ursus thibetanus)

Ecology and Evolution, Volume 16, Issue 1, January 2026.
Comparisons of mean fecal testosterone metabolite concentrations (mFTM) and behavioral variables between the breeding (May–July) and post‐breeding (August–November) seasons. The asterisks indicate significant differences. ABSTRACT In male mammals, reproduction and reproductive behavior are strongly influenced by testosterone. While some species exhibit
Naoki Takekoshi, Jumpei Tomiyasu, Yojiro Yanagawa, Naoki Ohnishi, Tomoko Naganuma, Seung‐Yun Baek, Miu Itoh, Xin Luo, Tatsuhito Nishiwaki, Chinatsu Kozakai, Shinsuke Koike, Koji Yamazaki   +11 more
wiley   +1 more source

An Energetic Tradeoff Best Explains Parturition Timing in Grizzly Bears

Ecology and Evolution, Volume 16, Issue 1, January 2026.
Capitalizing on latitudinal denning‐chronology variation among four grizzly bear populations in interior North America, and using grizzly bear parturition dates (27 Dec–28 Feb) previously predicted from anomalous daily motion counts, we found evidence supporting the hypothesis that birth is optimally timed relative to den exit to balance an energetic ...
Cecily M. Costello, Lori L. Roberts, Daniel D. Bjornlie, Matthew D. Cameron, Justin G. Clapp, Mark A. Haroldson, Grant V. Hilderbrand, Kyle Joly, Wayne F. Kasworm, Jeremy M. Nicholson, Thomas G. Radandt, Mathew S. Sorum, Justin E. Teisberg, Frank T. van Manen, Milan A. Vinks   +14 more
wiley   +1 more source

Walking in a heterogeneous landscape: Dispersal, gene flow and conservation implications for the giant panda in the Qinling Mountains [PDF]

, 2018
Understanding the interaction between life history, demography and population genetics in threatened species is critical for the conservations of viable populations.
Apps, Bates, Castillo, Chen, Clarke, Cushman, Cushman, Cushman, Cushman, Dieringer, Gong, Goudet, Halekoh, Hamilton, Hollatz, Hu, Hu, Hu, Hutchison, Li, Loucks, Lu, McRae, McRae, Nie, Pan, Pan, Peakall, Pritchard, Qi, Qi, Raymond, Reid, Ruiz-Gonzalez, Russo, Schaller, Shen, Slatkin, State Forestry Administration, Storfer, Swaisgood, Taberlet, Valière, Vallinoto, Van Oosterhout, Van Strien, Wan, Wan, Wang, Waser, Wasserman, Wei, Wei, Wei, Wei, Wei, Wright, Wu, Yang, Zhan, Zhan, Zhang, Zhang, Zhang, Zhao, Zhu, Zhu, Ziółkowska   +67 more
core   +3 more sources

The implications of poaching for giant panda conservation [PDF]

, 2003
http://www.elsevier.com/locate/issn/00063207Poaching giant pandas (Ailuropoda melanoleuca) for their skins is a serious threat to the persistence of wild giant panda populations in China.
Li, Y., Niemelä, J., Qisen, Y., Yushan, w., Zhongwei, G.   +4 more
core   +1 more source

An improved, chromosome-level genome of the giant panda (Ailuropoda melanoleuca)

Genomics, 2022
The iconic giant panda (Ailuropoda melanoleuca), as both a flagship and umbrella species endemic to China, is a world famous symbol for wildlife conservation. The giant panda has several specific biological traits and holds a relatively small place in evolution.
Yan, Li, Wei, Xu, Ye, Wang, Jie, Kou, Jiaman, Zhang, Silu, Hu, Liang, Zhang, Juan, Wang, Jiawen, Liu, Hong, Liu, Li, Luo, Chengdong, Wang, Jingchao, Lan, Rong, Hou, Fujun, Shen   +14 more
openaire   +2 more sources

Ecological Inference From Isolated Vertebrae: Evaluating Functional Signal Across the Carnivoran Spine

Journal of Morphology, Volume 287, Issue 1, January 2026.
ABSTRACT Understanding the ecological adaptations of extinct species is a central goal in vertebrate palaeontology, but is often limited by the incomplete nature of the fossil record. While skulls and limb bones have traditionally been emphasised in functional and ecological reconstructions, vertebrae are frequently overlooked. While isolated vertebrae
Julia A. Schwab, Borja Figueirido, Katrina E. Jones   +2 more
wiley   +1 more source

Was the giant short-faced bear a hyper-scavenger? A new approach to the dietary study of ursids using dental microwear textures.

PLoS ONE, 2013
Dramatic environmental changes associated with global cooling since the late Miocene, and the onset of glacial-interglacial cycles in the Pleistocene served as a backdrop to the evolutionary radiation of modern bears (family Ursidae). These environmental
Shelly L Donohue, Larisa R G DeSantis, Blaine W Schubert, Peter S Ungar   +3 more
doaj   +1 more source