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environmental drivers and Spatial Prediction of the Critically Endangered Species Thuja sutchuenensis in Sichuan-Chongqing,China

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Phyton-International Journal of Experimental Botany 2022年第9期91卷 2069-2086页

作者： Liang Xie Peihao Peng Haijun Wang Shengbin Chen College of Earth Science Chengdu University of TechnologyChengdu610059China School of Geoscience and Technology Southwest Petroleum UniversityChengdu610500China Engineering and Technical College Chengdu University of TechnologyLeshan614000China College of Ecology and Environment Chengdu University of TechnologyChengdu610041China Spatial Information Technology and Big Data Mining Research Center Southwest Petroleum UniversityChengdu610500China

Identifying the ecological environment suitable for the growth of Thuja sutchuenensis and predicting other potential distribution areas are essential to protect this endangered species. After selecting 24 environmental factors thatcould affect the distribution of T. sutchuenensis, including climate, topography, soil and Normalized DifferenceVegetation Index (NDVI), we adopted the Random Forest-MaxEnt integrated model to analyze our data. Basedon the Random Forest study, the contribution of the mean temperature of the warmest quarter, mean temperatureof the coldest quarter, annual mean temperature and mean temperature of the driest quarter was large. Based onMaxEnt model prediction outputs, the potential distribution map not only identified areas that originallyrecorded T. sutchuenensis, such as Xuanhan County, Kai County and Chengkou County, but also identified highlysuitable distribution areas where T. sutchuenensis may exist, including Wanyuan County, Sichuan Province, andthe junction of Chongqing and Hubei Province. This provides a more explicit geographic range for ex situ conservation and reintroduction of T. sutchuenensis. Our results also indicate that, in addition to climate factors,topography and soil factors are also important environmental factors that affect distribution. This provides a theoretical basis for subsequent laboratory construction to simulate the indoor growth of T. sutchuenensis.

关键词： Thuja sutchuenensis environmental drivers spatial prediction conservation Random Forest-MaxEnt model

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Exploring atmospheric environmental drivers of asthma among children in Shanghai, China: Evidence-informed policies are required

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Advances in Climate Change Research 2023年第4期14卷 587-591页

作者： Shilu TONG Ya-Bin HU Fan JIANG Shi-Jian LIU Jian-Guo TAN Guang-Jun YU Chong-Huai YAN Sheng-Hui LI Yong YIN National Institute of environmental Health Chinese Center for Disease Control and PreventionBeijing 100021China School of Public Health and Social Work Queensland University of TechnologyBrisbane 4001Australia Department of Clinical Epidemiology and Biostatistics Shanghai Children's Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Department of Developmental and Behavioral Pediatrics Pediatric Translational Medicine InstitutionShanghai Children's Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Shanghai Key Laboratory of Meteorology and Health(Shanghai Meteorological Service) Shanghai 200030China Shanghai Children's Hospital School of MedicineShanghai Jiao Tong UniversityShanghai 200062China MOE-Shanghai Key Laboratory of Children's environmental Health Xinhua HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200092China School of Public Health Shanghai Jiao Tong UniversityShanghai 200025China Department of Respiratory Medicine National Children's Medical CenterShanghai Children's Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China

It is important to identify atmospheric environmental drivers of childhood asthma because asthma is the most common chronic disease in children *** provided an overview of the impacts of exposure to atmospheric environmental factors(e.g.,meteorological factors and air pollutants)on childhood asthma,based on a series of studies with the cutting-edge environmental epidemiological methodology in Shanghai,***,we found that the prevalence of asthma among the children aged 3–7 years had increased by approximately 7 fold,from 2.1%in 1990 to 14.6%in *** meteorological factors(*** mean temperature,temperature difference,air pressure,air pressure difference,precipitation,relative humidity,sunshine and wind speed)and air pollutants(PM10,PM2.5,NO2,SO2 and O3)were significantly associated with childhood asthma(penvironmental conditions,it is critical to develop and implement appropriate climate change mitigation and adaptation strategies as global heating becomes apparent.

关键词： Asthma Climate change environmental drivers Public policy

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Metagenomic analysis to determine the characteristics of antibiotic resistance genes in typical antibiotic-contaminated sediments

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Journal of environmental Sciences 2023年第6期128卷 12-25页

作者： Han Yang Mu Xu Liqing Wang Xianyun Wang Erik Jeppesen Wei Zhang Engineering Research Center of environmental DNA and Ecological Water Health Assessment Centre for Research on Environmental Ecology and Fish Nutrient of the Ministry of AgricultureShanghai Ocean UniversityShanghai 201306China Shanghai National Engineering Research Center for Urban Water Resources Co. Ltd.Shanghai 200082China Department of Ecoscience Aarhus UniversityC.F.MФlers Allé38000 Aarhus CDenmark Sino-Danish Centre for Education and Research(SDC) University of Chinese Academy of SciencesBeijing 100190China Limnology Laboratory Department of Biological Sciences and Centre for Ecosystem Research and ImplementationMiddle East Technical UniversityAnkara 06800Turkey Institute of Marine Sciences Middle East Technical University33731 MersinTurkey

Comprehensive studies of the effects of various physical and chemical variables(including heavymetals),antibiotics,and microorganisms in the environment on antibiotic resistance genes are *** collected sediment samples from the Shatian Lake aquaculture area and surrounding lakes and rivers located in Shanghai,*** spatial distribution of sediment ARGs was assessed by metagenomic analysis that revealed 26 ARG types(510 subtypes),dominated by Multidrug,β-lactam,Aminoglycoside,Glycopeptides,Fluoroquinolone,and *** discriminant analysis indicated that antibiotics(SAs and MLs)in the aqueous environment and sediment along with water TN and TP were the key variables affecting the abundance distribution of total ***,the main environmental drivers and key influences differed among the different *** total ARGs,the environmental subtypes affecting their structural composition and distribution characteristics were mainly antibiotic *** analysis showed a significant correlation between ARGs and microbial communities in the sediment in the survey *** analysis revealed that most of the target ARGs were significantly and positively correlated with microorganisms,and a small number of ARGs(e.g.,rpoB,mdtC,and efpA)were highly significantly and positively correlated with microorganisms(e.g.,Knoellia,Tetrasphaera,and Gem-matirosa).Potential hosts for the major ARGs included Actinobacteria,Proteobacteria,and *** study provides new insight and a comprehensive assessment of the distribution and abundance of ARGs and the drivers of ARG occurrence and transmission.

关键词： Metagenomic analysis Antibiotic resistance genes environmental drivers Sediments Shatian Lake

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Spatial pattern of macrobenthic communities along a shelf-slope-basin transect across the Bering Sea

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Acta Oceanologica Sinica 2018年第6期37卷 72-81页

作者： LIN Heshan LIU Kun WANG Jianjun HUANG Yaqin LI Zhong LIN Junhui HE Xuebao ZHANG Shuyi MOU Jianfeng WANG Yu XING Bingpeng Laboratory of Marine Biology and Ecology Third Institute of Oceanography State Oceanic Administration College of Biotechnology Tianjin University of Science and Technology Fisheries College Jimei University

Due to its unique geological location, the Bering Sea is an ideal place to investigate the water exchange and ecosystem connectivity of the Pacific Ocean–Arctic Ocean and subarctic–Arctic region. Based on a number of summer surveys（July to September, 2010, 2012 and 2014）, macrobenthic communities and their spatial-temporal patterns are exhibited for the majority of the Bering Sea（53°59′–64°36′N）. The results show that the macrobenthic communities were dominated by northern cold-water species and immigrant eurythermic species, and the communities assumed a dispersed and patchy distribution pattern. Polychaetes（Scoloplos armiger）, crustaceans（Ceradocus capensis） and sea urchins（Echinarachnius parma） were the main dominant groups in the shallow shelves; the sea star（Ctenodiscus crispatus） and the brittle star（Ophiura sarsii） were the main dominant groups in the continental slope; whereas small polychaetes（Prionospio malmgreni） dominated the basin area. Sediment type, water depth, and currents were the major factors affecting the structure and spatial distribution of the macrobenthic communities. Compared with other seas, the shallow areas of the Bering Sea showed an extremely high-standing biomass. In particular, the northern shelf area（north of St. Lawrence Islands and west of 170°W）,which is primarily controlled by Anadyr Water, is an undersea oasis. In contrast, a deficiency in the downward transport of particulate organic carbon has resulted in a desert-like seabed in the basin area. By comparing our results to previous studies, we found that macrobenthic communities of the Bering Sea have undergone significant structural changes in recent decades, resulting in a decrease in abundance and an increase in *** addition, populations of amphipods and bivalves in the northern shelves have decreased significantly and have been gradually replaced by other species. These changes might be associated with advanced seasonal ice melting,changes in organic carbon input, a

关键词： macrobenthos community structure Arctic Bering Sea environmental drivers

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Cladophora as ecological engineer:A new test from the largest lake of Qinghai-Tibet plateau with filamentous algal blooms

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Water Biology and Security 2024年第1期3卷 46-52页

作者： Zhihua Wu Xigong Yuan Xiong Xiong Hongyi Ao Chenxi Wu Guoxiang Liu Huan Zhu Institute of Hydrobiology Chinese Academy of SciencesWuhan430072China College of Science Tibet UniversityLhasa850001China Huaihe River Commission of the Ministry of Water Resources Bengbu233001China

Filamentous algae blooms(FABs)have been increasing globally in recent years,and their presence can have both harmful and beneficial effects on aquatic *** one of the most common FABs,Cladophora blooms have been reported in the lakes of the Qinghai-Tibet Plateau during the past few ***,there have been few studies focused on how FABs impact other aquatic organisms,especially in alpine lakes since these are at the forefront of responding to global climate *** this study,the phytoplankton communities in different regions of Qinghai Lake were profiled in different seasons using meta-barcode *** phytoplankton assemblages in areas with Cladophora blooms were compared to those without *** phytoplankton community structure correlated with physicochemical properties including water temperature,electrical conductivity,nitrate,and the presence or absence of Cladophora *** relative abundance of Bacillariophytes was found to be higher in zones with Cladophora blooms than in other *** seasonal changes in phytoplankton biomass andβdiversity were observed in zones with Cladophora *** and microbial degradation of Cladophora can change the pH,dissolved oxygen,secchi depth,and *** with seasonal temperature and electrical conductivity changes,Cladophora growth can significantly impact the phytoplankton biomass,community dissimilarity and assembly *** results showed that Cladophora plays a key role in littoral aquatic ecosystem ecology.

关键词： Filamentous algal blooms Qinghai lake Biodiversity Phytoplankton community Assembly processes environmental drivers

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Temporal variation and its drivers in the elemental traits of four boreal plant species

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Journal of Plant Ecology 2021年第3期14卷 398-413页

作者： Isabella C.Richmond Shawn J.Leroux Travis R.Heckford Eric Vander Wal Matteo Rizzuto Juliana Balluffi-Fry Joanie L.Kennah Yolanda F.Wiersma Department of Biology Memorial University of Newfoundland232 Elizabeth AvenueSt.John'sNL A1B 3X9Canada

Aims Intraspecific variation in plant traits has important consequences for individual fitness and herbivore *** plants,trait variability across spatial dimensions is well ***,temporal dimensions of trait variability are less well known,and may be influenced by seasonal differences in growing degree days(GDD),temperature and ***,we aim to quantify intraspecific temporal variation in traits and the underlying drivers for four commonly occurring boreal plant *** We sampled the elemental and stoichiometric traits(%C,%N,%P,C:N,C:P,N:P)of four common browse species'foliage across 2 *** a two-step approach,we first fitted generalized linear models(GzLM,n=24)to the species'elemental and stoichiometric traits,and tested if they varied across *** we observed evidence for temporal variability,we fitted a second set of GzLMs(n=8)with temperature,productivity and moisture as explanatory *** Findings We found no evidence of temporal variation for most of the elemental and stoichiometric traits of our four boreal plants,with two *** was an important predictor for percent carbon across all four species(R^(2)=0.47-0.67)and for multiple elemental and stoichiometric traits in balsam fir(5/8,R2=0.29-0.67).Thus,variation in percent carbon was related to interannual differences,more so than nitrogen and phosphorus,which are limiting nutrients in the boreal *** results also indicate that year may explain more variation in conifers'stoichiometry than for deciduous plants due to life history *** was the most frequently occurring variable in the second round of models(8/8 times,R^(2)=0.21-0.41),suggesting that temperature is an important driver of temporal variation in these traits.

关键词： biogeochemistry boreal forest elemental phenotype ecological stoichiometry environmental drivers plant traits plant variation

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