Results 121 to 130 of about 1,536 (191)

高原鼠兔对极端低氧环境的生理、行为和分子生物学适应研究进展

open access: yes野生动物学报, 2022
从生理学、行为学及分子生物学等方面对高原鼠兔(Ochotona curzoniae)的低氧适应机制进行阐述,发现高原鼠兔血液与血红蛋白的结合、释放氧的能力较高,这对低氧时体内氧的传递是有利的;肺小动脉壁变薄,这有利于在低氧条件下进行气体交换,使更多的氧进入肺部,同时高原鼠兔的右心室重量低于常氧环境中的大鼠。这就最大限度防止了高原鼠兔在低氧环境中出现右心室衰竭。行为学研究主要集中在其繁殖行为方面,分子生物学研究主要集中在其血管生成、能量代谢和携氧蛋白的携氧能力方面。
齐丽红邹登朗祁得胜刘忠浩马建滨都玉蓉
doaj  

Correlation between the distribution characteristics of poisonous plants andOchotona curzoniae,Myospalax baileyiin the East of Tibetan Plateau Alpine meadow ecosystem [PDF]

open access: bronze, 2014
金樑 JIN Liang   +6 more
openalex   +1 more source

Surviving a Drought: Population Dynamics of \u3ci\u3eOchotona pallasi pricei\u3c/i\u3e in a Dry Steppe, Gobi Altai, Mongolia [PDF]

open access: yes, 2007
Two distinct life history traits are described from the genus Ochotona, the group of “burrowing” species exhibiting high but fluctuating population densities and the “non-burrowing” species exhibiting relatively stable low population densities.
Miehe, Georg, Nadrowski, Karin
core   +1 more source

Role of Leptin in Metabolic Adaptation During Cold Acclimation [PDF]

open access: yes, 2013
Chronic cold exposure stimulates thermogenesis in brown adipose tissue, resulting in fat mobilization and compensatory hyperphagia. Mostly, these physiological events are accompanied by a remarkable reduction in serum leptin levels ...
De-Hua Wang   +3 more
core  

Spatial Analysis of Plateau Pika Habitat Use [PDF]

open access: yes, 2017
The habitat occupied by animals during their normal activities is referred to as their home range. This physical space contains limited resources that are necessary for reproduction and survival.
Paruchuri, Spurthi
core  

YOLO-Pika: a lightweight improved model of YOLOv8n incorporating Fusion_Block and multi-scale fusion FPN and its application in the precise detection of plateau pikas

open access: yesFrontiers in Plant Science
The plateau pika (Ochotona curzoniae) is a keystone species on the Qinghai–Tibet Plateau, and its population density—typically inferred from burrow counts—requires rapid, low-cost monitoring.
Yihao Liu   +4 more
doaj   +1 more source

Variations of Endocrine Hormones Concentrations in Tupaia belangeri under Simulated Seasonal Acclimatized: Role of Leptin Sensitivity [PDF]

open access: yes, 2013
Seasonal variations in endocrine hormones concentrations are important for the survival of small mammals during acclimatization. In order to understand the role of leptin sensitivity on other endocrine hormones concentrations, we examined body mass ...
Mu, Yuan   +3 more
core  

Simulation and response mechanism of potential geographical distribution of plateau pika Ochotona curzoniae under climate change

open access: yesGlobal Ecology and Conservation
With global warming, climate change had significant impacts on the distribution of species and their habitats. As one of the keystone species of the Qinghai-Tibet Plateau (QTP), the plateau pika Ochotona curzoniae plays a vital role in the alpine ...
Yanni Song   +3 more
doaj   +1 more source

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