Results 51 to 60 of about 1,106 (156)

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

Environmental Drivers of Geographic Isolation in Three Pika Species in Northeast Asia

Integrative Zoology, EarlyView.
Using bias‐corrected species distribution models, we found that geographic isolation among three northeastern Asian pika species (Ochotona coreana, Ochotona mantchurica, and Ochotona hyperborea) reflects both divergent environmental preferences and potential competitive interactions. O.
Yuxi Peng, Chengbin Yang, Dallin B. Kohler, Wenxuan Yu, Hailong Li, Chongzhe Zhong, Yucheol Shin, Zhengji Piao, Guanglan Cao, Weihong Zhu, Amaël Borzée, Ying Li   +11 more
wiley   +1 more source

Conserving Rodent Pests in Transition Toward Endangered Status

Integrative Zoology, EarlyView.
Rodent control invariably takes place in the context of ecosystems heavily modified by agriculture. Together, they are potent drivers of rodent decline and endangerment. Nineteen percent of 2349 rodent species evaluated in the IUCN Red List of threatened species are of some conservation concern.
Xavier Lambin
wiley   +1 more source

Bacterial composition of Polygenis (Polygenis) bohlsi bohlsi (Wagner, 1901) (Siphonaptera: Rhopalopsyllidae) associated with Thrichomys fosteri (Rodentia: Echimyidae) in the Brazilian Pantanal wetland

Medical and Veterinary Entomology, EarlyView.
This study characterizes the bacteriome of Polygenis (Polygenis) bohlsi bohlsi fleas collected from free‐living Thrichomys fosteri in the Pantanal region of Brazil. The bacterial microbiota associated with male fleas exhibited greater phylogenetic diversity, and the overall community structure differed between the flea sexes.
Michelli Inácio Gonçalves Funnicelli, Renan Bressianini do Amaral, Victória Valente Califre de Mello, Ricardo Bassini‐Silva, Lizeth Fernanda Banguero Micolta, Marie Buysse, William Oliveira de Assis, Alanderson Rodrigues da Silva, Heitor Miraglia Herrera, Rosangela Zacarias Machado, Darci Moraes Barros‐Battesti, Daniel Guariz Pinheiro, Olivier Duron, Marcos Rogério André   +13 more
wiley   +1 more source

Mitochondrial physiology in cardiac muscle of deer mice native to high altitude

The Journal of Physiology, EarlyView.
Abstract figure legend High‐altitude deer mice exhibited evolved changes in mitochondrial energy metabolism and reactive oxygen species (ROS) management that may support cardiac performance under cold hypoxic conditions. High‐altitude mice had increased activity of lactate dehydrogenase (LDH) in the heart, probably enhancing the capacity for lactate ...
Ranim Saleem, Samuel G. Robichaud, Simon G. Lamarre, Graham R. Scott   +3 more
wiley   +1 more source

Soil Organic Carbon Content and Density in Response to Pika Outbreaks Along the Altitudinal Gradient in Alpine Meadows of the Qinghai–Tibet Plateau, West China

Land
This study investigated the effects of plateau pika (Ochotona curzoniae) disturbances and altitude on soil organic carbon (SOC) storage characteristics, including SOC content and SOC density (SOCD).
Wenzhi Yao, Jing Zhang, Xilai Li
doaj   +1 more source

Transcriptome analysis of pika heart tissue reveals mechanisms underlying the adaptation of a keystone species on the roof of the world

Frontiers in Genetics, 2022
High-altitude environments impose intense stresses on living organisms and drive striking phenotypic and genetic adaptations, such as hypoxia resistance, cold tolerance, and increases in metabolic capacity and body mass. As one of the most successful and
Danping Mu, Danping Mu, Xinlai Wu, Xinlai Wu, Anderson Feijó, Wei Wu, Zhixin Wen, Jilong Cheng, Lin Xia, Qisen Yang, Wenjuan Shan, Deyan Ge   +11 more
doaj   +1 more source

Aqueous‐Phase Processing of Organic Aerosols at the Southern Great Plains: Insights From Integrated Chemical and Microphysical Analyses

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Aqueous‐phase reactions are hypothesized to be a major pathway for secondary organic aerosol (SOA) formation in humid, cloud‐influenced environments, yet direct observational constraints remain limited. Here we investigated aqueous SOA (aqSOA) formation and evolution during the spring 2016 Holistic Interactions of Shallow Clouds, Aerosols, and
J. Trousdell, W. Jiang, J. Shilling, M. Shrivastava, J. D. Fast, Qi Zhang   +5 more
wiley   +1 more source

A homotetrameric hemoglobin expressed in alveolar epithelial cells increases blood oxygenation in high-altitude plateau pika (Ochotona curzoniae)

Cell Reports, 2022
Summary: The plateau pika (Ochotona curzoniae) is native to the Qinghai-Tibet Plateau. In this study, the gene that encodes a heme-binding protein in the pulmonary surfactant (PS) of the pika is identified. The protein is a homotetrameric hemoglobin (δ4)
Zhifang An, Linna Wei, Bo Xu, Zhijie Wang, Conghui Gao, Jimei Li, Lian Wei, Delin Qi, Peng Shi, Tongzuo Zhang, Dengbang Wei   +10 more
doaj   +1 more source

Gut Microbiota Differences in Wild Asian Elephants From Pu'er, China

Ecology and Evolution, Volume 16, Issue 9, September 2026.
This study compared the gut microbiota of two wild Asian elephant populations in Jiangcheng (JC) and Liushun (LS), Yunnan, China. Significant differences in microbial structure, diversity, and function were found. Across samples, 24 phyla, 48 classes, 98 orders, 164 families, 288 genera, and 351 species were annotated.
Zheng Jing, Zhou Jiuxuan, Liu Xia, Wang Binghui, Wang Yixuan, Cao Hui, Lu Tihuo   +6 more
wiley   +1 more source