Results 61 to 70 of about 3,500 (223)

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

Actinomyces gaoshouyii sp. nov., isolated from plateau pika (Ochotona curzoniae)

International Journal of Systematic and Evolutionary Microbiology, 2017
Two strains (pika_113T and pika_114) of a previously undescribed Actinomyces-like bacterium were recovered from the intestinal contents of plateau pika (Ochotona curzoniae) on the Tibet-Qinghai Plateau, China. Results from biochemical characterization indicated that the two strains were phenotypically homogeneous and distinct from other previously ...
Xiangli, Meng, Yiting, Wang, Shan, Lu, Xin-He, Lai, Dong, Jin, Jing, Yang, Jianguo, Xu   +6 more
openaire   +2 more sources

Pika’s role in the Qinghai-Tibet Plateau ecosystem and effects of biodiversity [PDF]

BIO Web of Conferences
The Tibetan Plateau is the largest plateau in the world. Although this plateau is not as rich in species as the rainforest, it still contains some specific flora and fauna (including mammals, birds, and some reptiles).
Hong Zimu, Jiang Xiaoyu, Li Rourou
doaj   +1 more source

How do plateau pikas use burrows during population reestablishment?

, 2023
Abstract The construction of burrow systems is one of the most important challenges for burrowing animals, especially during population reestablishment. To explore their strategy of utilizing burrow resources during this period, we chose plateau pika (Ochotona curzoniae) as the research object. We conducted monthly field positioning of the four
Rui Zhang, Teng Deng, Hualei Xu, Wei Liu
openaire   +1 more source

Echinococcus multilocularis and Echinococcus shiquicus in a small mammal community on the eastern Tibetan Plateau : host species composition, molecular prevalence, and epidemiological implications [PDF]

, 2018
Background The eastern part of the Tibetan Plateau is now recognized as an endemic region with the highest reported human infection rates in the world of human alveolar echinococcosis (AE) caused by Echinococcus multilocularis.
AT Smith, B Boufana, B Boufana, B Ma, Belgees Boufana, D Trachsel, DL He, F Raoul, F Ronquist, Francis Raoul, H Wang, H Wang, HL Zhao, J Knapp, JG He, Jiayu Liu, JM Qiu, Junyao Wang, JX Zhang, KP Burnhan, L Zhao, L Zhao, LM Wang, M Nakao, M Nakao, M Nakao, MA Larkin, MH LePesteur, N Xiao, N Xiao, National Health and Family Planning Commission of the People’s Republic of China, NJD Nagelkerke, P Burlet, P Burlet, P Delattre, P Giraudoux, P Giraudoux, P Giraudoux, P Giraudoux, P Librado, P Morris, Patrick Giraudoux, Philip S. Craig, PR Torgerson, PS Craig, Q Wang, QC Hu, Qingqiu Zuo, QX Liu, RCA Thompson, RCA Thompson, RZ Zhang, S Gandon, T Hall, T Qi, TY Li, TY Li, U Saarma, WB Jiang, XH Xia, Xiaodong Weng, Xiaohui Sun, XM Han, Xu Wang, YZ Wang, ZG Jiang, ZH Wang, ZH Wang, Zhenghuan Wang, Zhiqiang Mu, ZX Luo   +70 more
core   +5 more sources

Seasonal pattern of Echinococcus re-infection in owned dogs in Tibetan communities of Sichuan, China and its implications for control [PDF]

, 2016
Background Human cystic echinococcosis (CE) and alveolar echinococcosis (AE) are highly endemic in Tibetan communities of Sichuan Province. Previous research in the region indicated that domestic dog was the major source of human infection, and ...
Craig, PS, Giraudoux, P, He, W, Huang, L, Huang, Y, Mastin, A, Renqingpengcuo,, Shang, J, Wang, Q, Wu, W, Yu, W, Zhang, G, Zhong, B   +12 more
core   +3 more sources

Natural selection and adaptive evolution of leptin in the ochotona family driven by the cold environmental stress. [PDF]

PLoS ONE, 2008
BACKGROUND: Environmental stress can accelerate the evolutionary rate of specific stress-response proteins and create new functions specialized for different environments, enhancing an organism's fitness to stressful environments. Pikas (order Lagomorpha)
Jie Yang, Zhen Long Wang, Xin Quan Zhao, De Peng Wang, De Lin Qi, Bao Hong Xu, Yong Hong Ren, Hui Fang Tian   +7 more
doaj   +1 more source

Analyzing the recovery mechanisms of patchy degradation and its response to mowing and plateau pika disturbances in alpine meadow

Ecological Indicators, 2023
The alpine meadow is susceptible to degradation triggered by overgrazing and rodent outbreaks, leading to uneven patches of degradation. In this regard, we conducted a study that involved the implementation of nine combined treatments utilizing a two ...
Zihan Song, Xilai Li, Xiaoxue Su, Chengyi Li   +3 more
doaj   +1 more source

Uniform female-biased sex ratios in alpine willows [PDF]

, 2012
Premise of the study: The development of biased sex ratios in dioecious plant species has been ascribed to either (1) factors influencing differential adult mortality of male and female plants or (2) factors acting at an early life stage that determine ...
Hik, David S., Myers-Smith, Isla H.
core   +1 more source

Effect of Plateau Pika (\u3cem\u3eOchotonacurzionae\u3c/em\u3e) Disturbance on Soil Microelements Content in Alpine Meadow [PDF]

, 2020
The plateau pika (Ochotonacurzoniae) creates the extensive disturbance on alpine meadow ecosystem in the QinghaiTibetan Plateau (Smith and Foggin, 1999, Delibes-Mateos et al., 2011), especially on soil nutrient (Davidson et al., 2012).
Guo, Zhenggang, Jia, Tingting, Shen, Yuying, Xiao, Yu   +3 more
core   +1 more source