Results 21 to 30 of about 626 (144)

The plant secondary compound swainsonine reshapes gut microbiota in plateau pikas (Ochotona curzoniae). [PDF]

Appl Microbiol Biotechnol, 2021
Abstract Plants produce various plant secondary compounds (PSCs) to deter the foraging of herbivorous mammals. However, little is known about whether PSCs can reshape gut microbiota and promote gut homeostasis of hosts.
Ren S, Fan C, Zhang L, Tang X, Fu H, Liu C, Jia S, Zhang Y.   +7 more
europepmc   +4 more sources

Cardiac adaptation to high altitude in the plateau pika (Ochotona curzoniae). [PDF]

Physiol Rep, 2013
The aim of this study was to assess maximal heart rate (HR) and heart morphological changes in high altitude living "plateau pikas" and rats bred at 2260 m. Rats and pikas were catheterized to measure HR (2260 m). After baseline measurements, 1 mg/kg of atropine (AT) and increasing doses of isoproterenol (IsoP) (0.1, 1, 10, and 100 μg kg) were injected
Pichon A, Zhenzhong B, Marchant D, Jin G, Voituron N, Haixia Y, Favret F, Richalet JP, Ge RL.   +8 more
europepmc   +4 more sources

Risk assessment in the plateau pika (Ochotona curzoniae): intensity of behavioral response differs with predator species [PDF]

BMC Ecology, 2020
Background The ability of a prey species to assess the risk that a predator poses can have important fitness advantages for the prey species. To better understand predator–prey interactions, more species need to be observed to determine how prey ...
Wanrong Wei, Qiaoyan Zhen, Zhongmin Tang, Maria K. Oosthuizen   +3 more
doaj   +2 more sources

Animal Activities of the Key Herbivore Plateau Pika (Ochotona curzoniae) on the Qinghai-Tibetan Plateau Affect Grassland Microbial Networks and Ecosystem Functions [PDF]

Frontiers in Microbiology, 2022
Plateau pikas (Ochotona curzoniae) are high-altitude model animals and famous “ecosystem engineers” on the Qinghai-Tibet Plateau. Pika activities may accelerate the degradation of alpine meadows.
Jiawei Yang, Sijie Wang, Wanghong Su, Qiaoling Yu, Xiaochen Wang, Qian Han, Yuting Zheng, Jiapeng Qu, Jiapeng Qu, Xiangzhen Li, Huan Li, Huan Li, Huan Li   +12 more
doaj   +2 more sources

Age-Specific Composition and Predicted Function of Gut Microbiota in Plateau Pikas (Ochotona curzoniae). [PDF]

Biology (Basel)
Gut microbes play a crucial role in regulating physiological processes such as host energy metabolism, nutrient absorption, and environmental adaptation. The predicted functions of gut microbes can be influenced by many factors, both extrinsic and intrinsic to the hosts.
Han H, Yang Y, Zhu X, Wangdwei M, Yang L.   +4 more
europepmc   +4 more sources

A homotetrameric hemoglobin expressed in alveolar epithelial cells increases blood oxygenation in high-altitude plateau pika (Ochotona curzoniae)

Cell Reports, 2022
Summary: The plateau pika (Ochotona curzoniae) is native to the Qinghai-Tibet Plateau. In this study, the gene that encodes a heme-binding protein in the pulmonary surfactant (PS) of the pika is identified. The protein is a homotetrameric hemoglobin (δ4)
Dengbang Wei, Linna Wei
exaly   +3 more sources

The expression of Ldh-c in the skeletal muscle of plateau pika (Ochotona curzoniae) enhances adaptation to a hypoxic environment [PDF]

Biology Open, 2017
The plateau pika (Ochotona curzoniae) is a species of sprint-running alpine animals in the Qinghai-Tibet Plateau, which is a harsh highland hypoxic environment. Ldh-c is expressed in the testis, sperm and somatic tissues of plateau pika.
Zhi F. An, Deng B. Wei, Lian Wei, Yang Wang, Lin N. Wei   +4 more
doaj   +2 more sources

Autonomous UAV Detection of Ochotona curzoniae Burrows with Enhanced YOLOv11

Drones
The Tibetan Plateau is a critical ecological habitat where the overpopulation of plateau pika (Ochotona curzoniae), a keystone species, accelerates grassland degradation through excessive burrowing and herbivory, threatening ecological balance and human ...
Huimin Zhao, Linqi Jia, Yuankai Wang, Fei Yan   +3 more
doaj   +2 more sources

Dual detection and novel genotypes of Giardia and Leishmania in Ochotona curzoniae from Zoige County, Qinghai-Tibet Plateau [PDF]

Frontiers in Veterinary Science
IntroductionGiardia and Leishmania are important zoonotic parasites, yet their transmission dynamics in wildlife hosts on the Qinghai-Tibet Plateau remain unclear. As a keystone species on the Plateau, Ochotona curzoniaes overlap spatially with livestock
Lu Deng, Nian-Chun Yin, Zhun Yi, Ri-hong Jike, Hong-Xi Chen, Tian-Cai Tang, Li-Li Hao   +6 more
doaj   +2 more sources

Shiga Toxin-Producing Escherichia coli in Plateau Pika (Ochotona curzoniae) on the Qinghai-Tibetan Plateau, China [PDF]

Frontiers in Microbiology, 2016
Shiga toxin-producing Escherichia coli (STEC) are an emerging group of zoonotic pathogens. Ruminants are the natural reservoir of STEC. In this study we determined the prevalence and characteristics of the STEC in plateau pika (Ochotona curzoniae) on the
Xiangning eBAI, Wang eZHANG, Xinyuan eTANG, Youquan eXIN, Yanmei eXU, Hui eSUN, Xuelian eLUO, Ji ePU, Jianguo eXU, Yanwen eXIONG, Yanwen eXIONG, Shan eLU   +11 more
doaj   +2 more sources