Results 51 to 60 of about 2,608 (184)

Metodološki pristop opredelitve napovednih dejavnikov za oceno stopnje alergijske reakcije po piku žuželke

Zdravniški Vestnik, 2023
Izhodišča: V svetu so opravili manjše število raziskav, ki opisujejo povezanost med dejavniki tveganja in stopnjo alergijske reakcije po piku žuželke.
Nika Jutraž, Tanja Carli, Simona Perčič, Mitja Košnik, Andreja Kukec   +4 more
doaj   +1 more source

ARE PIKAS EXPOSED TO AND AFFECTED BY SELENIUM DEFICIENCY? [PDF]

Journal of Wildlife Diseases, 2007
Regional extirpations of pikas (Ochatona princeps) within the last few decades have been attributed to global warming. Other recent global alterations such as increased nitrogen (N) deposition and associated selenium (Se) deficiency may further stress pika populations.
K M, Palmer, N L, Stanton, M, Ben-David, J, Mionczynski, S E, Williams   +4 more
openaire   +2 more sources

Cardiovascular Plasticity and Adaptation of High‐Altitude Birds and Mammals

Integrative Zoology, EarlyView.
This schematic depicts the cardiovascular adaptations of mammals and birds to high‐altitude hypoxia. It highlights key phenotypic changes in oxygen transport and cardiac responses, driven by molecular mechanisms including transcriptional regulation and genetic modifications.
Huishang She, Yanhua Qu
wiley   +1 more source

Different characteristics of the soil in marmot habitats might be one of the factors that influcting Yersinia pestis prevalent in which than pikas

Frontiers in Microbiology
IntroductionMarmots are recognized as host animals for plague caused by Yersinia pestis infection. It is unclear that why plague prevalent in marmot rather than other rodents like pikas in the same habitats.
Wenlong Zhao, Shixiong Li, Yuechen Sun, Jingpeng Liu, Yixin Ma, Rui Qi   +5 more
doaj   +1 more source

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

Suomen 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   +1 more source

Decades of Enclosure Protection Exert Composite Effects on Grassland Grasshopper Communities

Integrative Zoology, EarlyView.
Decades of enclosure protection have altered grasshopper community structure, with species‐specific effects on population dynamics. For the low‐mobility grasshopper Chorthippus fallax, abundance did not differ strongly between exclosure‐protected and overgrazed areas, but its egg development duration was longer in exclosures. The two C.
Dan‐dan Feng, Hui‐feng Zhao, Ya‐hui Men, Jing Li, Mei‐ling Yang, Cai‐qing Yang, Bing Chen, Ai‐bing Zhang   +7 more
wiley   +1 more source

Five-year longitudinal surveillance reveals the continual circulation of both alpha- and beta-coronaviruses in Plateau and Gansu pikas (Ochotona spp.) at Qinghai Lake, China1

Emerging Microbes and Infections
The discovery of alphacoronaviruses and betacoronaviruses in plateau pikas (Ochotona curzoniae) expanded the host range of mammalian coronavirus (CoV) to a new order – Lagomorpha.
Lin Xu, Meiqing Song, Xianzhi Tian, Ju Sun, Yanjun Wang, Mengyu Bie, Yuhai Bi, Edward C. Holmes, Yi Guan, Jianjun Chen, Juan Li, Weifeng Shi   +11 more
doaj   +1 more source

Comparative Genomics and Functional Evidence for Convergent Adaptation to Hypoxia in Mammals

Integrative Zoology, EarlyView.
This study reveals convergent selection in mammals adapted to hypoxia. Functional assays demonstrate that amino acid mutations reduce oxidative stress, attenuate hypoxia‐induced injury, and modulate the hypoxia‐inducible transcription factor (HIF)‐driven hypoxic response.
Hao Dong, Chunxu Wang, Enqing Pei, Liang Zhao, Simin Chai, Ran Tian   +5 more
wiley   +1 more source

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

On pikas and ticks [PDF]

Frontiers in Ecology and the Environment, 2021
Michelle M Olmstead, Sam Zeveloff
openaire   +1 more source