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Qinghai-TIbet Plateau

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https://www.readbyqxmd.com/read/30084909/molecular-phylogenetics-and-historical-biogeography-of-the-tribe-lilieae-liliaceae-bi-directional-dispersal-between-biodiversity-hotspots-in-eurasia
#1
Jiao Huang, Li-Qin Yang, Yan Yu, Yan-Mei Liu, Deng-Feng Xie, Juan Li, Xing-Jin He, Song-Dong Zhou
Background and Aims: The role played by the Qinghai-Tibet Plateau (QTP) in the organismal diversification and biogeography of plants in the Northern Hemisphere has attracted much attention from evolutionary biologists. Here we use tribe Lilieae (Liliaceae), including primarily temperate and alpine lineages with disjunct distributions in the North Temperate Zone, as a case study to shed light upon these processes. Methods: Using 191 taxa (five outgroup taxa) comprising more than 60 % of extant Lilieae species across the entire geographical range, we analyse phylogenetic relationships based on three plastid markers (matK, rbcL, rpl16) and nuclear ITS...
August 2, 2018: Annals of Botany
https://www.readbyqxmd.com/read/30063977/the-first-draft-genome-of-lophophorus-a-step-forward-for-phasianidae-genomic-diversity-and-conservation
#2
Kai Cui, Wujiao Li, Jake George James, Changjun Peng, Jiazheng Jin, Chaochao Yan, Zhenxin Fan, Lianming Du, Megan Price, Yongjie Wu, Bisong Yue
The monal genus (Lophophorus) is a branch of Phasianidae and its species inhabit the high-altitude mountains of the Qinghai-Tibet Plateau. The Chinese monal, L. lhuysii, is a threatened endemic bird of China that possesses high-altitude adaptability, diversity of plumage color and potentially low reproductive life history. This is the first study to describe the monal genome using next generation sequencing technology. The Chinese monal genome size is 1.01 Gb, with 16,940 protein-coding genes. Gene annotation yielded 100...
July 28, 2018: Genomics
https://www.readbyqxmd.com/read/29990506/the-potential-colonization-histories-of-opsariichthys-bidens-cyprinidae-in-china-using-bayesian-binary-mcmc-analysis
#3
Weitao Chen, Bjorn V Schmidt, Shunping He
Vicariance and/or long-distance dispersal shape the distribution patterns of many extant taxa, and orogenesis and/or climate fluctuations are key factors that drive the events of vicariance and/or dispersal. In this study, we yielded biogeographical inferences from Bayesian binary MCMC (BBM) analysis to explore the potential colonization histories of Opsariichthys bidens in China and to identify potential factors responsible for the colonization histories. Many vicariance and dispersal events were identified...
July 7, 2018: Gene
https://www.readbyqxmd.com/read/29986317/evaluation-of-groundwater-discharge-into-surface-water-by-using-radon-222-in-the-source-area-of-the-yellow-river-qinghai-tibet-plateau
#4
Peng Yi, Huan Luo, Li Chen, Zhongbo Yu, Huijun Jin, Xiaobing Chen, Chengwei Wan, Ala Aldahan, Minjie Zheng, Qingfang Hu
Understanding hydrological processes in the Source Area of the Yellow River (SAYR), Qinghai-Tibet Plateau, is vital for protection and management of groundwater and surface water resources in the region. In situ water measurements of exchange rates between surface water and groundwater are, however, hard to conduct because of the harsh natural conditions of the SAYR. We here present an indirect method using in situ 222 Rn measurements to estimate groundwater discharge into rivers and lakes in the SAYR. 222 Rn was measured in rivers, lakes, groundwater and springs during three sampling periods (2014-2016), and the results indicate large variability in the concentration of the isotope...
July 6, 2018: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29974692/-effects-of-grassland-management-on-soil-nutrients-and-their-spatial-distribution-on-the-qinghai-tibetan-plateau-china
#5
Jian Jun Cao, Xue Yan Wang, Meng Tian Li, Shu Rong Yang, Xue Yun Xu, Yi Fan Gong
After grasslands were contracted to individual households on the Qinghai-Tibetan Pla-teau, two grassland management patterns were formed, i.e., the single-household management pattern (SMP) and the multi-household management pattern (MMP). The soil nutrients and their spatial distributions under those two patterns were compared in the Nagchu Prefecture of Tibet. The results showed that the soil organic carbon, total nitrogen, and total phosphorus under the MMP (84.31, 6.87 and 0.59 g·kg-1 ) were all significantly higher than those under the SMP (73...
June 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29965508/-bioavailability-of-dissolved-organic-carbon-in-rivers-for-typical-vegetation-types-in-the-permafrost-regions-on-the-qinghai-tibet-plateau
#6
Xiao-Liang Ma, Gui-Min Liu, Xiao-Dong Wu, Hai-Yan Xu, Lin-Lin Ye, Xiao-Lan Zhang, Wei Bai
Samples collected from 12 rivers with typical vegetation types in the permafrost regions on the Qinghai-Tibetan Plateau were incubated in the laboratory, and the relationships among the vegetation types, river discharges, the compositions of dissolved organic carbon (DOC), permafrost areas, riverine DOC concentration, biodegradability of dissolved organic carbon (BDOC), and the biodegradation kinetics were examined. The results showed that the DOC concentrations of typical vegetation types in the basin, such as alpine meadow (AM), alpine swamp meadow-alpine meadow (ASM-AM), alpine meadow-alpine steppe (AM-AS), and alpine meadow-alpine steppe-bare soil (AM-AS-BL), were (5...
May 8, 2018: Huan Jing Ke Xue= Huanjing Kexue
https://www.readbyqxmd.com/read/29934553/uplift-and-denudation-in-the-continental-area-of-china-linked-to-climatic-effects-evidence-from-apatite-and-zircon-fission-track-data
#7
Nansheng Qiu, Shuai Liu
Approximately 2284 fission track data were collected to draw a fission track thermotectonic image of the continental area of China. The result exhibits features such that apatite fission track ages increase from the southwestern to eastern and northern continental areas of China. Thermal paths also reveal the different uplift/denudation processes and times between different tectonic units. At the same time, tectonic uplift of the continent has been among the causes of climate change in the continent since the Cenozoic...
June 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29929291/spatial-temporal-consistency-between-gross-primary-productivity-and-solar-induced-chlorophyll-fluorescence-of-vegetation-in-china-during-2007-2014
#8
Jun Ma, Xiangming Xiao, Yao Zhang, Russell Doughty, Bangqian Chen, Bin Zhao
Accurately estimating spatial-temporal patterns of gross primary production (GPP) is important for the global carbon cycle. Satellite-based light use efficiency (LUE) models are regarded as an efficient tool in simulating spatial-temporal dynamics of GPP. However, the accuracy assessment of GPP simulations from LUE models at both spatial and temporal scales remains a challenge. In this study, we simulated GPP of vegetation in China during 2007-2014 using a LUE model (Vegetation Photosynthesis Model, VPM) based on MODIS (moderate-resolution imaging spectroradiometer) images with 8-day temporal and 500-m spatial resolutions and NCEP (National Center for Environmental Prediction) climate data...
October 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29886844/unmanned-aerial-vehicles-potential-tools-for-use-in-zoonosis-control
#9
Qing Yu, Hui Liu, Ning Xiao
Unmanned aerial vehicles (UAVs) have become useful tools to extend human abilities and capacities. Currently UAVs are being used for the surveillance of environmental factors related to the transmission of infectious diseases. They have also been used for delivering therapeutic drugs and life-saving supplies to patients or isolated persons in extreme conditions. There have been very few applications of UAVs for disease surveillance, control and prevention to date. However, we foresee many uses for these machines in the fight against zoonotic disease...
June 11, 2018: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29868119/phylogeography-of-parasyncalathium-souliei-asteraceae-and-its-potential-application-in-delimiting-phylogeoregions-in-the-qinghai-tibet-plateau-qtp-hengduan-mountains-hdm-hotspot
#10
Nan Lin, Tao Deng, Michael J Moore, Yanxia Sun, Xianhan Huang, Wenguang Sun, Dong Luo, Hengchang Wang, Jianwen Zhang, Hang Sun
Biogeographic regionalization can help to better understand diversity in biogeography, conservation, and macroecology. Historical regionalization schemes typically focus on species distributions, often rarely considering the rich context that phylogeographic information can provide. We investigated whether phylogeographic data could help to delineate floristic regions in the Qinghai-Tibet Plateau (QTP)-Hengduan Mountains (HDM) region by analyzing phylogeographic structure in the herb Parasyncalathium souliei (Asteraceae)...
2018: Frontiers in Genetics
https://www.readbyqxmd.com/read/29862448/diet-simplification-selects-for-high-gut-microbial-diversity-and-strong-fermenting-ability-in-high-altitude-pikas
#11
Huan Li, Jiapeng Qu, Tongtong Li, Stephan Wirth, Yanming Zhang, Xinquan Zhao, Xiangzhen Li
The gut microbiota in mammals plays a key role in host metabolism and adaptation. However, relatively little is known regarding to how the animals adapts to extreme environments through regulating gut microbial diversity and function. Here, we investigated the diet, gut microbiota, short-chain fatty acid (SCFA) profiles, and cellulolytic activity from two common pika (Ochotona spp.) species in China, including Plateau pika (Ochotona curzoniae) from the Qinghai-Tibet Plateau and Daurian pika (Ochotona daurica) from the Inner Mongolia Grassland...
August 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29851262/the-roles-of-calving-migration-and-climate-change-in-the-formation-of-the-weak-genetic-structure-in-the-tibetan-antelope-pantholops-hodgsonii
#12
Jiarui Chen, Gonghua Lin, Wen Qin, Jingyan Yan, Tongzuo Zhang, Jianping Su
Geographical barriers and distance can reduce gene exchange among animals, resulting in genetic divergence of geographically isolated populations. The habitats of Tibetan antelope (Pantholops hodgsonii) has a geographical range of approximately 1,600 km across the Qinghai-Tibet Plateau (QTP) with a series tall mountains and big rivers. However, previously studies indicated that there was little genetic differentiation among their geographically delineated populations. To better understand the genetic structure of P...
May 31, 2018: Integrative Zoology
https://www.readbyqxmd.com/read/29846813/spatiotemporal-distribution-and-the-characteristics-of-the-air-temperature-of-a-river-source-region-of-the-qinghai-tibet-plateau
#13
Cai Deng, Wanchang Zhang
As the backland of the Qinghai-Tibet Plateau, the river source region is highly sensitive to changes in global climate. Air temperature estimation using remote sensing satellite provides a new way of conducting studies in the field of climate change study. A geographically weighted regression model was applied to estimate synchronic air temperature from 2001 to 2015 using Moderate-Resolution Imaging Spectroradiometry (MODIS) data. The results were R2  = 0.913 and RMSE = 2.47 °C, which confirmed the feasibility of the estimation...
May 30, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29846606/effects-of-silage-additives-and-varieties-on-fermentation-quality-aerobic-stability-and-nutritive-value-of-oat-silage
#14
G Q Zhao, Z L Ju, J K Chai, T Jiao, Z F Jia, D P Casper, L Zeng, J P Wu
Oat is a main feed crop in high altitude areas of western China, but few studies have been done on its silage making. The aim of this study was to evaluate the effect of silage additives on fermentation, aerobic stability and nutritive value of different oat varieties grown in the Qinghai Tibet Plateau of China. Two oat varieties (Avena sativa L. cv. Longyan No.1 (OVL1) and Avena sativa L. cv. Longyan No.3 (OVL3)) were planted in a randomized complete block design, harvested at early dough stage with 32.6% and 34...
May 26, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29803173/swertia-mussotii-extracts-induce-mitochondria-dependent-apoptosis-in-gastric-cancer-cells
#15
Haixia Wang, Xiang Yuan, Hui-Ming Huang, Shi-Hao Zou, Bo Li, Xi-Qiao Feng, Hong-Ping Zhao
Swertia mussotii (Gentianaceae) is a traditional Chinese medicinal plant grown in the Qinghai-Tibet Plateau. Three fractions from S. mussotii extract, named SWF50, SWF 70 and SWF100, were screened for in vitro anti-proliferative activity on two gastric cancer cell lines, MGC-803 and BGC-823 cells using MTT assay. Our results demonstrated that SMF70 showed an anti-proliferative effect in MGC-803 cells and SMF100 showed an anti-proliferative effect in BGC-823 cells in vitro. Moreover, both two fractions induced apoptosis via depolymerization of cytoskeletal filaments, increased cytoplasmic levels of ROS and Ca2+ and disrupted mitochondrial transmembrane potential...
August 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29790032/is-the-center-of-origin-of-long-tailed-hamster-cricetulus-longicaudatus-milne-edwards-1867-rodentia-cricetidae-located-in-tibet
#16
N S Poplavskaya, A A Bannikova, Y Fang, B I Sheftel, M V Ushakova, A V Surov, V S Lebedev
First data on morphological and mitochondrial variation in the long-tailed hamster Cricetulus longicaudatus is presented. In contrast to genetically monomorphic populations of Mongolia and Tuva, the northeastern part of the Qinghai-Tibetian Plateau was found to harbor several divergent mtDNA lineages. This pattern suggests a recent expansion of the long-tailed hamster to the northern part of its recent range, which started from Tibet, presumably, in the late Middle Pleistocene. Several populations from the northern edge of the species range were found to be morphologically but not genetically distinct...
March 2018: Doklady Biological Sciences: Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
https://www.readbyqxmd.com/read/29747615/prevalence-of-refractive-errors-in-tibetan-adolescents
#17
Xuehan Qian, Beihong Liu, Jing Wang, Nan Wei, Xiaoli Qi, Xue Li, Jing Li, Ying Zhang, Ning Hua, Yuxian Ning, Gang Ding, Xu Ma, Binbin Wang
BACKGROUND: The prevalence of adolescent eye disease in remote areas of the Qinghai-Tibet Plateau has rarely been reported. To understand the prevalence of common eye diseases in Tibet, we performed ocular-disease screening on students from primary and secondary schools in Tibet, and compared the prevalence to that in the Central China Plain (referred to here as the "plains area"). METHODS: The refractive status of students was evaluated with a Spot™ vision screener...
May 11, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29745192/-%C3%AE-glucan-content-spatial-distribution-characteristics-and-its-influencing-factors-of-cultivated-barley-in-qinghai-tibet-plateau-china
#18
Jian Lin Wang, Zhi Ming Zhong, Xi Bo Feng, Gang Fu, Cheng Qun Yu, Wei Hai Hou, Gai Hua Wang, Zhuoga Daci
β-glucan content spatial distribution characteristics of cultivated barley in Qinghai-Tibet Plateau were investigated based on the data measured from 83 sampling sites. The results showed that β-glucan content exhibited a macrocosm pattern of spatial distribution along the horizontal direction in Qinghai-Tibet Plateau, with staggered patches of different values. Two regions of higher β-glucan content were observed with centers of Guide and Tongde in Qinghai Province and Xiahe and Hezuo in Gansu Province (northeast), and Jiangzi, Bailang, Xietongmen, Shigatse, Lazi, Kangma, Gongga and Qushui in Tibet (southwest)...
May 18, 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29745138/-effects-of-naphthalene-on-soil-respiration-nutrients-and-enzyme-activities-in-the-subalpine-forest-of-western-sichuan-china
#19
Fan Yang, Wan Qin Yang, Fu Zhong Wu, Hui Wang, Li Ying Lan, Yu Wei Liu, Cai Hong Guo, Bo Tan
As a biocide to reduce soil and litter faunal populations in field experiments, naphthalene has been widely used in the study of ecological functions of soil fauna, but the non-target effects of naphthalene bring about enormous uncertainty to its application. In order to understand whether there were non-target effects of naphthalene in subalpine forest soil, soil in the subalpine forests of west Qinghai-Tibet Plateau was taken as study object. The short-term responses of soil respiration rate, nutrient content and enzyme activity to naphthalene were studied in microcosms...
June 18, 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29728970/distribution-and-health-risks-of-aerosol-black-carbon-in-a-representative-city-of-the-qinghai-tibet-plateau
#20
Jun Wu, Jian Lu, Xiuyun Min, Zhenhua Zhang
Although aerosol black carbon (BC) exerts strong influences on human health, research on potential health risks of aerosol BC around the Qinghai-Tibet Plateau is very limited. This is the very first study to investigate the distribution of aerosol BC in a typical city of the Qinghai-Tibet Plateau and the resulting health risks. The results showed that the maximal real-time (5-min monitoring interval) concentration of aerosol BC was 22.34 μg/m3 , much higher than day- and week-averaged concentrations which were in the range of 1...
July 2018: Environmental Science and Pollution Research International
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