Results 11 to 20 of about 6,786 (180)

Modeling the Spatial Distribution of Plateau Pika (Ochotona curzoniae) in the Qinghai Lake Basin, China

open access: yesAnimals, 2019
The plateau pika (Ochotona curzoniae) is a keystone species in the alpine rangeland ecosystem of the Qinghai−Tibetan Plateau. Most previous studies of habitat selection by plateau pika have been conducted at a local microhabitat scale; however ...
Yi-Nan Wu   +3 more
doaj   +2 more sources

Walker, Anthony R. (ed.). Pika-Pika: The Flashing Firefly. Essays to Honour and Celebrate the Life of Pauline Hetland Walker (1938–2005) [PDF]

open access: yesSuomen Antropologi, 2009
WALKER, ANTHONY R. (ed.). Pika-Pika: The Flashing Firefly. Essays to Honour and Celebrate the Life of Pauline Hetland Walker (1938–2005). New Delhi: Hindustan Publishing Corporation, 2009. Pp. xv + 489. ISBN: 81-7075-087-3.
Clifford Sather
doaj   +2 more sources

MN•CS•IO System: Cross-Species Study for HBB Function in High-Altitude Hypoxia Adaptation. [PDF]

open access: yesAdv Sci (Weinh)
We developed an integrative mesh‐nanorod sorting, chitosan nanoparticle delivery, and intraosseous injection (MN•CS•IO) system to investigate HBB in high‐altitude hypoxia adaptation. Transplanting Tibetan animals' HBB‐modified Lin‐ cells into mice achieved 95.59% transfection efficiency and 8.15% HBB expression. High‐altitude HBB recipients upregulated
Hui W   +18 more
europepmc   +2 more sources

Spatiotemporal Coupling Relationship Between Plateau Pika Disturbance and Alpine Meadow Degradation

open access: yesShuitu 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   +5 more
doaj   +1 more source

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

open access: yesPLoS 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   +9 more
doaj   +1 more source

Characterization of the spatial distribution of plateau pika burrows along an alpine grassland degradation gradient on the Qinghai–Tibet Plateau

open access: yesEcology and Evolution, 2021
Plateau pika burrows are common feature of degraded grassland in the Qinghai–Tibet Plateau (QTP) and serve as an important indicator of pika activity and grassland degradation.
Dawen Qian   +4 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

open access: yesArthroplasty 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   +4 more
doaj   +1 more source

Pika Gut May Select for Rare but Diverse Environmental Bacteria [PDF]

open access: yes, 2016
The composition of the mammalian gut bacterial communities can be influenced by the introduction of environmental bacteria in their respective habitats.
Wirth, S   +11 more
core   +2 more sources

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

open access: yesEcology 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   +4 more
doaj   +1 more source

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

open access: yesGlobal 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

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