Results 31 to 40 of about 1,106 (156)

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

Physiological Reports, 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, Aurélien, Zhenzhong, Bai, Marchant, Dominique, Jin, Guoen, Voituron, Nicolas, Haixia, Yun, Favret, Fabrice, Richalet, Jean-Paul, Ge, Ri-Li   +8 more
openaire   +2 more sources

PRNP Sequences of Tibetan Antelope, Blue Sheep, and Plateau Pika from the Qinghai-Tibet Plateau and Reactivity of PrP Proteins to Rodent-Adapted Scrapie Strains in RT-QuIC and PMCA

Zoonoses, 2023
Tibetan antelope ( Rhinopithecus ), blue sheep ( Pseudois nayauris ), and plateau pika ( Ochotona curzoniae ) are wild animals living on the Qinghai-Tibet Plateau.
Yue-Zhang Wu, Jing-Xing Wu, Xue-Hua Yang, Shan Lu, Kang Xiao, Dong-Dong Chen, Li-Ping Gao, Qi Shi, Jian-Guo Xu, Xiao-Ping Dong   +9 more
doaj   +1 more source

The effects of management on population dynamics of plateau pika

Mathematical and Computer Modelling, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hanwu Liu, Yuming Chen, Li Zhou, Zhen Jin 0001   +3 more
openaire   +1 more source

Dysbiosis of Gut Microbiome Aggravated Male Infertility in Captivity of Plateau Pika. [PDF]

Biomolecules
Captivity is an important and efficient technique for rescuing endangered species. However, it induces infertility, and the underlying mechanism remains obscure. This study used the plateau pika (Ochotona curzoniae) as a model to integrate physiological, metagenomic, metabolomic, and transcriptome analyses and explore whether dysbiosis of the gut ...
Zhang L, Tang X, Fan C, Ren S, Cheng Q, Zhou H, Liu K, Jia S, Zhang Y.   +8 more
europepmc   +4 more sources

Testis‐specific lactate dehydrogenase is expressed in somatic tissues of plateau pikas [PDF]

FEBS Open Bio, 2013
LDH‐C4 is a lactate dehydrogenase that catalyzes the interconversion of pyruvate with lactate. In mammals the, Ldh‐c gene was originally thought to be expressed only in testis and spermatozoa. Plateau pika (Ochotona curzoniae), belonging to the genus Ochotona of the Ochotonidea family, is a hypoxia tolerant mammal living at 3000–5000 m above sea ...
Wang, Duowei, Wei, Lian, Wei, Dengbang, Rao, Xinfeng, Qi, Xinzhang, Wang, Xiaojun, Ma, Benyuan   +6 more
openaire   +2 more sources

Rearing of Plateau Pika(Ochotona daurica) Captured in Mongolia.

Experimental Animals, 1998
We attempted to rear and breed Plateau pikas (Ochotona daurica) captured in Mongolia in 1994 and 1995. In rearing indoors, though coitus was observed, none of the females became pregnant. In rearing outdoors, males began to make high-pitched, continuous cries and the first offspring (3 newborns) were obtained in June, 1997. The body weight averaged 8.4
MATSUZAKI, Tetsuya, SAITO, Muneo, SAKAI, Akio, MATSUMOTO, Takaaki, GANZORIG, Sumiya, MAEDA, Yutaka   +5 more
openaire   +3 more sources

Can pikas hold the umbrella? Understanding the current and future umbrella potential of keystone species Pika (Ochotona spp.)

Global Ecology and Conservation, 2022
The umbrella species concept is a frequently used concept in conservation since the conservation of an umbrella species may benefit other species. Keystone species are often suggested as potential umbrella species, but the validity of this approach ...
Ojaswi Sumbh, Anouschka R. Hof
doaj   +1 more source

Functional evolution of leptin of Ochotona curzoniae in adaptive thermogenesis driven by cold environmental stress.

PLoS ONE, 2011
BackgroundEnvironmental stress can accelerate the directional selection and evolutionary rate of specific stress-response proteins to bring about new or altered functions, enhancing an organism's fitness to challenging environments.
Jie Yang, Timothy G Bromage, Qian Zhao, Bao Hong Xu, Wei Li Gao, Hui Fang Tian, Hui Jun Tang, Dian Wu Liu, Xin Quan Zhao   +8 more
doaj   +1 more source

The burying and grazing effects of plateau pika on alpine grassland are small: a pilot study in a semiarid basin on the Qinghai-Tibet Plateau [PDF]

Biogeosciences, 2016
There is considerable controversy about the effects of plateau pika (Ochotona curzoniae, hereafter pika) on alpine grassland on the Qinghai-Tibet Plateau (QTP). On the one hand, pika is considered a keystone species.
S. Yi, S. Yi, J. Chen, J. Chen, Y. Qin, G. Xu, G. Xu   +6 more
doaj   +1 more source

Soil microbial communities and the associated effect on soil organic carbon in response to plateau pika bioturbation in alpine grasslands

Global Ecology and Conservation, 2023
Alpine grasslands are vital in regulating carbon balance on the Qinghai-Tibetan Plateau (QTP) because of the large soil organic carbon (SOC) stocks, while persistent disturbance from the endemic small semifossorial herbivore, plateau pika (Ochotona ...
Yu Qin, Xinyu Liu, Bo Huang, Hongyan Yu, Shuhua Yi   +4 more
doaj   +1 more source