Results 91 to 100 of about 252,738 (220)

Detecting Plateau Zokor (Eospalax baileyi) Mounds in UAV Imagery of Alpine Meadows Using Deep Learning Algorithms

Remote Sensing in Ecology and Conservation, EarlyView.
We developed PZM‐YOLO to automatically detect plateau zokor mounds in UAV imagery of alpine meadows. The model achieved reliable detection of small and densely distributed mounds under complex backgrounds, outperforming the baseline YOLOv5s. This framework supports mound counting, mound position, rodent impact assessment, and grassland restoration ...
Yang Yang, Limin Hua, Lianguo Wang, Jiazhen Li, Rui Dong, Siwei Yang   +5 more
wiley   +1 more source

Quantitative comparison and evaluation between aerial and underground parts of Gentiana straminea through simultaneous determination of five major compounds by RP-HPLC

Heliyon
Herbal Gentiana straminea Maxim. (Family Gentianaceae), “Ma Hua Jiao” in Chinese, is a commonly used Chinese medicine. Secoiridoids and flavonoids have been identified as the major active components of herbal medicines used in the treatment of hepatitis,
Junlei Hao, Jiang Zhou, Pengcheng Lin, Jiang Wu   +3 more
doaj   +1 more source

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China 气候变化下中国大兴安岭漠河地区猞猁潜在适宜区的变化

Wildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu, Dan Ju, Hong Chen, Qi Qi, Geng Liu, Shaochun Zhou   +5 more
wiley   +1 more source

Rapid evaluation of antioxidant activity of Rheum tanguticum: A synergistic strategy of near-infrared spectroscopy, chromatographic effects, and machine learning

Food Chemistry: X
This study integrates HPLC fingerprinting and NIR spectroscopy to evaluate the antioxidant capacity of Rheum tanguticum. HPLC fingerprinting comprehensively characterized the complex chemical composition, identifying 13 compounds.
Xiaoming Song, Dan Feng, Jiamin Li, Liyan Zang, Hongmei Li, Jing Sun   +5 more
doaj   +1 more source

Starch granule-associated proteins of hull-less barley (Hordeum vulgare L.) from the Qinghai-Tibet Plateau in China

, 2011
BACKGROUND: The starch granule-associated proteins (SGAPs) are the minor components of the starch granules and a majority of them are believed to be starch biosynthetic enzymes.
Tang, Ya-Wei, Pan, Zhi-Fen, Wang, Chun-Ping, Nima, Zha-Xi, Cai, Peng, Deng, Guang-Bing, Yu, Mao-Qun, Liang, Jun-Jun, Long, Hai   +8 more
core  

Mechanism of Damage and Micro‐Characterisation of Irradiation‐Induced Free Radicals on the Epoxy Insulation of the Bridge Arm Reactors at High Altitude

High Voltage, EarlyView.
ABSTRACT Damage degradation of epoxy resin insulating materials by free radicals triggered by the ultraviolet irradiation environment at high altitude has become a key issue that restricts the reliability of the bridge arm reactor at high altitude.
Liang Zou, Xinya Luo, Zhiyun Han, Zhen Li, Xiaofeng Ding, Kejie Huang   +5 more
wiley   +1 more source

Experimental Insights on Carbon Sequestration and Yield Improvement in Oat Fields with 30% Organic Nitrogen Substitution in the Tibetan Plateau

Agronomy
To evaluate the optimal substitution ratio of organic fertilizer for chemical nitrogen fertilizer and its underlying mechanisms, a pot experiment was conducted in the rhizosphere soil of oat (Avena sativa) on the Qinghai–Tibet Plateau.
Lianxue Duan, Zeliang Ju, Xiang Ma, Jing Pan, Wenting Ma, Zhifeng Jia   +5 more
doaj   +1 more source

Mainland diversification and recent island lineages in the reduviid genus Tapirocoris: an integrative taxonomic framework with four new species

Insect Science, EarlyView.
Using an integrative taxonomic framework that combines COI DNA barcodes, geometric morphometrics and phylogeography, we revise the assassin bug genus Tapirocoris and recover seven well‐supported species, including four newly described cryptic species.
Ping Zhao, Qinpeng Liu, Minmin Ou, Huaiyu Liu, Yingqi Liu, Jianyun Wang, Miao Yang, Zhuo Chen, Wanzhi Cai   +8 more
wiley   +1 more source

Resource Availability and Habitat Quality Drive Time‐Lag Effects in High‐Altitude Ungulate Distribution

Integrative Zoology, EarlyView.
Our analysis revealed that while climate strongly influenced species distributions, habitat change drove most observed delays in distribution responses. In terms of community ecology, dispersed communities exhibited shorter time lags than concentrated groups. Analyses of lag duration revealed a 5–6‐year distribution lag effect in high‐altitude ungulate
Lu Wang, Xiuming Li, Ben Huang, Xiaoxue Li, Jizhen Chen, Ziyan Liao, Kun Jin   +6 more
wiley   +1 more source

Museomics Deciphers the Phylogeographic Differentiation and Conservation Status of a Montane Pheasant

Integrative Zoology, EarlyView.
Museum specimens provide a rich source of historical DNA, enabling insights into phylogenetic relationships and demographic history of the endangered Koklass Pheasant. Our findings uncovered a previously unrecognized population in Guizhou province and highlighted elevated extinction risk in populations from Anhui province and Southern China, informing ...
Zhiyong Jiang, Yalin Cheng, Shuai Zhang, Wenqing Zang, Peng He, Dezhi Zhang, Jinjuan Mei, Peng Cui, Yanhua Qu, Hailong Wu   +9 more
wiley   +1 more source