Results 21 to 30 of about 32,490 (183)

Modeling the Spatial Distribution of Plateau Pika (Ochotona curzoniae) in the Qinghai Lake Basin, China

Animals, 2019
The plateau pika (Ochotona curzoniae) is a keystone species in the alpine rangeland ecosystem of the Qinghai−Tibetan Plateau. Most previous studies of habitat selection by plateau pika have been conducted at a local microhabitat scale; however ...
Yi-Nan Wu, Yu-Jun Ma, Wen-Ling Liu, Wu-Zhao Zhang   +3 more
doaj   +1 more source

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

Teaching learners to communicate effectively in the L2: Integrating body language in the students\u2019 syllabus [PDF]

, 2015
In communication a great deal of meaning is exchanged through body language, including gaze, posture, hand gestures and body movements. Body language is largely culture-specific, and rests, for its comprehension, on people\u2019s sharing socio-cultural ...
Busa', Maria Grazia
core   +2 more sources

Differential Expression of Metabolism-Related Genes in Plateau Pika (Ochotona curzoniae) at Different Altitudes on the Qinghai–Tibet Plateau

Frontiers in Genetics, 2022
According to life history theory, animals living in extreme environments have evolved specific behavioral and physiological strategies for survival. However, the genetic mechanisms underpinning these strategies are unclear.
Hongjuan Zhu, Hongjuan Zhu, Liang Zhong, Liang Zhong, Jing Li, Jing Li, Suqin Wang, Suqin Wang, Jiapeng Qu, Jiapeng Qu   +9 more
doaj   +1 more source

Dark energy and the hierarchy problem [PDF]

, 2006
The well-known hierarchy between the Planck scale (~10^{19}GeV) and the TeV scale, namely a ratio of ~10^{16} between the two, is coincidentally repeated in a inverted order between the TeV scale and the dark energy scale at \~10^{-3}eV implied by the ...
Aghababaie, Altendorfer, Arkani-Hamed, Astier, Bauer, Burgess, Chen, Chen, Chen, Flachi, Gherghatta, Gherghetta, Goldberger, Gupta, Milton, Naylor, Pisin Chen, Randall, Randall, Saharian, Satare, Spergel, Tegmark   +22 more
core   +5 more sources

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

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

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

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