Results 11 to 20 of about 32,490 (183)

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

Gorillas’ (Gorilla g. gorilla) knowledge of conspecifics’ affordances: intraspecific social tool use for food acquisition [PDF]

, 2020
The use of tools, long thought to be uniquely human, has now been observed in other animal taxa including several species of birds, non-primate mammals as well as some non-human primate species.
Pika, Simone, Prieur, Jacques
core   +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

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

Ecology 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, Qian Li, Bo Fan, Yuting Lan, Guangmin Cao   +4 more
doaj   +1 more source

Plastic pikas: Behavioural flexibility in low-elevation pikas (Ochotona princeps) [PDF]

Behavioural Processes, 2016
Behaviour is an important mechanism for accommodating rapid environmental changes. Understanding a species' capacity for behavioural plasticity is therefore a key, but understudied, aspect of developing tractable conservation and management plans under climate-change scenarios.
Varner, Johanna, Horns, Joshua J., Lambert, Mallory S., Westberg, Elizabeth, Ruff, James S., Wolfenberger, Katelyn, Beever, Erik A., Dearing, M. Denise   +7 more
openaire   +2 more sources

Return of the pika: American pikas re‐occupy long‐extirpated, warm locations

Ecology and Evolution, 2022
AbstractAmerican pikas (Ochotona princeps), small mammals related to rabbits, occur in mountainous regions of western North America, where they live in shattered‐rock habitats (talus). Aspects of their physiology and life history create situations that appear to put pikas at risk from warming climates.
Constance I. Millar, Andrew T. Smith
openaire   +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

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

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