Results 21 to 30 of about 2,608 (184)

Transcriptome analysis of pika heart tissue reveals mechanisms underlying the adaptation of a keystone species on the roof of the world

Frontiers in Genetics, 2022
High-altitude environments impose intense stresses on living organisms and drive striking phenotypic and genetic adaptations, such as hypoxia resistance, cold tolerance, and increases in metabolic capacity and body mass. As one of the most successful and
Danping Mu, Danping Mu, Xinlai Wu, Xinlai Wu, Anderson Feijó, Wei Wu, Zhixin Wen, Jilong Cheng, Lin Xia, Qisen Yang, Wenjuan Shan, Deyan Ge   +11 more
doaj   +1 more source

Return of the pika: American pikas re‐occupy long‐extirpated, warm locations

Ecology and Evolution, 2022
AbstractAmerican pikas (Ochotona princeps), small mammals related to rabbits, occur in mountainous regions of western North America, where they live in shattered‐rock habitats (talus). Aspects of their physiology and life history create situations that appear to put pikas at risk from warming climates.
Constance I. Millar, Andrew T. Smith
openaire   +2 more sources

New records of the Endangered Helan Shan pika Ochotona argentata, with notes on its natural history and conservation

Oryx, 2023
The Helan Shan pika Ochotona argentata is an Endangered pika endemic to Ningxia Helan Shan National Nature Reserve in China. Little is known about the species, including regarding its population status, distribution, habitat requirements and even basic ...
Joseph P. Lambert, Jingyao Li, Yibin Li, Xuehan Hou, Kun Shi   +4 more
doaj   +1 more source

Plastic pikas: Behavioural flexibility in low-elevation pikas (Ochotona princeps) [PDF]

Behavioural Processes, 2016
Behaviour is an important mechanism for accommodating rapid environmental changes. Understanding a species' capacity for behavioural plasticity is therefore a key, but understudied, aspect of developing tractable conservation and management plans under climate-change scenarios.
Varner, Johanna, Horns, Joshua J., Lambert, Mallory S., Westberg, Elizabeth, Ruff, James S., Wolfenberger, Katelyn, Beever, Erik A., Dearing, M. Denise   +7 more
openaire   +2 more sources

Using UAVs to assess the relationship between alpine meadow bare patches and disturbance by pikas in the source region of Yellow River on the Qinghai-Tibetan Plateau

Global Ecology and Conservation, 2021
Degradation of the alpine meadow has received increasing attention recently, and plateau pika (Ochotona curzoniae, hereafter pika) disturbance is considered as an important cause.
Jianguo Zhang, Dawei Liu, Baoping Meng, Jianjun Chen, Xiaoyun Wang, Hui Jiang, Yue Yu, Shuhua Yi   +7 more
doaj   +1 more source

The role of geography, environment, and genetic divergence on the distribution of pikas in the Himalaya

Ecology and Evolution, 2020
Pikas (Ochotona Link, 1795) are high‐altitude specialist species making them a useful bioindicator species to warming in high‐altitude ecosystem. The Himalayan Mountains are an important part of their range, supporting approximately 23%–25% of total pika
Nishma Dahal, Sunil Kumar, Barry R. Noon, Rajat Nayak, Rinzin Phunjok Lama, Uma Ramakrishnan   +5 more
doaj   +1 more source

Group-living decrease predation risk of individual: Evidence from behavior, hormones and reproduction of plateau pika

Frontiers in Ecology and Evolution, 2023
Extensive research confirms that abiotic stressors like predation risk can profoundly affect animal condition. However, there is a lack of experimental research assessing the suite of physiological responses to risk.
Rui Zhou, Rui Zhou, Rui Hua, Zhuangsheng Tang, Limin Hua   +4 more
doaj   +1 more source

Research Progress on Plateau Pika Dynamic Distribution in the Context of Climate Change and Human Activities

Nantong Daxue xuebao. Ziran kexue ban, 2020
Plateau pika is an endemic species of the Qinghai-Tibet Plateau and a key species of alpine grassland ecosystem, but its outbreak under certain conditions will also bring adverse effects on the alpine grassland, so it has received wide concerns.
YI Shuhua; CAO Wenda; ZHANG Jianguo; QIN Yu; SUN Yi; QIN Yan
doaj   +1 more source

Life‐history traits and fitness of plateau pika (Ochotona curzoniae) in alpine meadow ecosystem

Ecology and Evolution, 2022
Plateau pika (Ochotona curzoniae) is an endemic mammal living in the alpine meadow ecosystem in Qinghai–Tibet Plateau. We studied life history of plateau pika by mark–recapturing method.
Haiyan Nie, Jike Liu, Baoyang Chen
doaj   +1 more source

Plateau pika fecal microbiota transplantation ameliorates inflammatory bowel disease manifestations in a mouse model of colitis

Frontiers in Microbiology, 2023
Inflammatory bowel disease (IBD) is a serious global public health concern. Although the pathogenesis of the disease is currently unknown, it has been reported to be associated with both intestinal microbiota and inflammatory mediators. There is evidence
Yayuan Yang, Baiqiang Cui, Yanan Lv, Xiangnan Lu, Wenxiang Shen, Min Feng, Xuezhi Ding, Pengcheng Dong, Yu Wang   +8 more
doaj   +1 more source