Results 91 to 100 of about 1,893 (167)

Diet diversity is associated with beta but not alpha diversity of pika gut microbiota

Frontiers in Microbiology, 2016
Wild mammals often consume different food sources as they become geographical available. This change in diet composition is likely to influence the gut microbial community, yet it remains unclear what the relationship looks like—particularly in small ...
Huan Li, Tongtong Li, DeAnna Beasley, Petr Heděnec, Zhishu Xiao, Shiheng Zhang, Jiabao Li, Qiang Lin, Xiangzhen Li   +8 more
doaj   +1 more source

Tissue Specific Expression of Plateau Pikas (Ochotona curzoniae   ) HIF-1α mRNA Under Normal Oxygen

, 2004
Hypoxia inducible factor 1 (HIF-1),which is a transcription factor composed of HIF-1α and arylhydocarbon nuclear receptor translocator (ARNT),plays an important role in the signal transduction of cell response to hypoxia.Plateau pikas (Ochotona ...
Shi-xiao Xu, Ping Sun, Wei Zhao, Tong-biao Zhao, Xin-quan Zhao, Zhi-jie Chang   +5 more
core   +1 more source

Alpine steppe vegetation communities are more sensitive to plateau pika disturbance than alpine meadows

Frontiers in Plant Science
IntroductionSmall herbivores are important biological factors affecting plant productivity and species richness in the grassland ecosystem of the Tibetan Plateau.
Rui Hua, Peng Zhang, Liqing Wang, Miaomiao Huang, Limin Hua, Jianwei Zhou   +5 more
doaj   +1 more source

Ochotona daurica

, 1982
Ochotona daurica (Pallas, 1776). Reise Prov. Russ. Reichs., 3:692. TYPE LOCALITY: U.S. S. R., Transbaikalia, Buryat-Mongolsk. A.S.S. R., Onon River, Kulusutai or Selenga River. DISTRIBUTION: Steppes from Altai and Transbaikalia through N. China and N.
Kenneth E. Kinman, James H. Honacki, James W. Koeppl   +2 more
core   +1 more source

Herbivorous mammals adjust their feeding patterns according to the abundance of available diet to adapt to the effects of grassland degradation

Global Ecology and Conservation
The degradation of grasslands on the Qinghai–Tibet Plateau has severely impacted the region’s ecology and productivity, subsequently affecting the dietary niche of the region’s herbivores.
Xin He, Yutong Liu, Siwei Yang, Guiwen He, Gang Liu, Junsong Zhao   +5 more
doaj   +1 more source

Effects of Qinghai-Tibetan Railway on the Genetic Differentiation of Plateau Pika (Ochotona curzoniae) Based on Cytochrome b Sequences

, 2012
Plateau pika (Ochotonidae: Ochotona curzoniae) is widespread in Qinghai-Tibetan Plateau (QTP). It is endemic to QTP and restricted to high altitude area, ranging from 3,000 to 5,200 m above sea level. In this study, I examined the genetic structure of O.
Weng, Wei-jan
core  

Preference for ground cover when selecting burrow entrances in plateau pikas

Ecology and Evolution
Burrow‐dwelling animals such as the plateau pika (Ochotona curzoniae) often seek sturdy entrances for their burrows, which can reduce the need for frequent maintenance.
Rui Zhang, Wei Liu
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Daily and Seasonal Activity Patterns of Plateau Pikas (Ochotona curzoniae) on the Qinghai-Tibet Plateau, China, and Their Relationship with Weather Condition. [PDF]

Animals (Basel), 2023
Zhou R, Hua R, Tang Z, Hua L.
europepmc   +1 more source

Stochastic Processes Derive Gut Fungi Community Assembly of Plateau Pikas (Ochotona curzoniae) along Altitudinal Gradients across Warm and Cold Seasons. [PDF]

J Fungi (Basel), 2023
Tang X, Zhang L, Ren S, Zhao Y, Liu K, Zhang Y.   +5 more
europepmc   +1 more source

高原鼠兔对极端低氧环境的生理、行为和分子生物学适应研究进展

野生动物学报, 2022
从生理学、行为学及分子生物学等方面对高原鼠兔（Ochotona curzoniae）的低氧适应机制进行阐述，发现高原鼠兔血液与血红蛋白的结合、释放氧的能力较高，这对低氧时体内氧的传递是有利的；肺小动脉壁变薄，这有利于在低氧条件下进行气体交换，使更多的氧进入肺部，同时高原鼠兔的右心室重量低于常氧环境中的大鼠。这就最大限度防止了高原鼠兔在低氧环境中出现右心室衰竭。行为学研究主要集中在其繁殖行为方面，分子生物学研究主要集中在其血管生成、能量代谢和携氧蛋白的携氧能力方面。
齐丽红邹登朗祁得胜刘忠浩马建滨都玉蓉
doaj