Results 11 to 20 of about 2,601 (182)

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

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

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   +1 more source

Effect of plateau pika disturbance and patchiness on ecosystem carbon emissions in alpine meadow in the northeastern part of Qinghai–Tibetan Plateau [PDF]

Biogeosciences, 2019
Plateau pika (Ochotona curzoniae) disturbance and patchiness intensify the spatial heterogeneous distribution of vegetation productivity and soil physicochemical properties, which may alter the ecosystem carbon emission process.
Y. Qin, S. Yi, S. Yi, Y. Ding, Y. Ding, W. Zhang, W. Zhang, Y. Qin, Y. Qin, J. Chen, J. Chen, Z. Wang, Z. Wang   +12 more
doaj   +1 more source

Restricted Inverse Kinematic Alignment Better Restores the Native Joint Line Orientation While Achieving Similar Balance, Laxity, and Arithmetic Hip-Knee-Ankle Angle to Gap Balancing Total Knee Arthroplasty

Arthroplasty Today, 2023
Background: Both restricted inverse kinematic alignment (iKA) and gap balancing aim for a balanced total knee arthroplasty by adjusting femoral component position based on ligamentous gaps.
Alexander D. Orsi, PhD, Edgar Wakelin, PhD, Christopher Plaskos, PhD, Stephen McMahon, MD, Simon Coffey, MBBS, FRACS, MD   +4 more
doaj   +1 more source

Impact of plateau pikas (Ochotona curzoniae) on soil properties and nitrous oxide fluxes on the Qinghai-Tibetan Plateau. [PDF]

PLoS ONE, 2018
This paper demonstrates the impact of an endemic fossorial animal, plateau pika (Ochotona curzoniae), on soil properties and N2O flux at the Zoige Wetland.
Yan Zhou, Shengwu Jiao, Nana Li, John Grace, Meng Yang, Cai Lu, Xuemeng Geng, Xinwei Zhu, Li Zhang, Guangchun Lei   +9 more
doaj   +1 more source

Spatiotemporal Coupling Relationship Between Plateau Pika Disturbance and Alpine Meadow Degradation

Shuitu baochi tongbao, 2023
[Objective] Plateau pika (Ochotona curzoniae) is a key species in the alpine meadow ecosystem of the Qinghai-Xizang Plateau. The coupling relationship between pika activity and meadow degradation was analyzed in order to further improve the observation ...
Zhao Jianyun, Jiang Chuanli, Li Guorong, Gao Chongyue, Wang Zhichao, Wen Lanchong   +5 more
doaj   +1 more source

Habitat Utilization Preference by Small Mammals Is Associated With Geomorphic and Soil Properties: A Case Study of the Plateau Pika From the Eastern Qinghai‐Tibet Plateau [PDF]

Ecol Evol
This study, through a large‐scale survey, reveals a close relationship between plateau pika habitat use preferences and geomorphic and soil characteristics. The findings indicate that pikas prefer flat, sun‐facing terrain near water sources, as well as specific ranges of soil depth, organic matter, and moisture.
Qin F, Chen Y, Tang Z, Oosthuizen M, An S, Wei W.   +5 more
europepmc   +2 more sources

Association of iron deficiency anemia and eating clove in an 8-year-old girl. A rare case report

Journal of Contemporary Medicine, 2023
Iron-deficiency anemia is the most common nutrient disorder worldwide. It is defined pica as eating non-nutritive, non-food substances over a period of at least one month. Different types of pica have been reported in the literature.
Sadiye Sert
doaj   +1 more source

Can Herbivore Feeding Preferences Reinforce the Female‐Biased Sex Ratio in an Alpine Willow? [PDF]

Ecol Evol
Sex‐biased herbivory can vary among co‐occurring herbivores and across the season. Sequential herbivory by species with different feeding preferences may influence the population dynamics of dioecious plants, particularly if early‐season herbivory alters plant traits that affect subsequent foraging decisions.
Barrio I, Bueno C, Hik D.
europepmc   +2 more sources

Gene flow drives genomic diversity in Asian Pikas distributed along the core and range‐edge habitats in the Himalayas

Ecology and Evolution, 2023
Studying the genetic variation among different species distributed across their core and range‐edge habitats can provide valuable insights into how genetic variation changes across the species' distribution range.
Nishma Dahal, Melia G. Romine, Sunita Khatiwara, Uma Ramakrishnan, Sangeet Lamichhaney   +4 more
doaj   +1 more source