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Global warming scenarios for the Eastern Adriatic Sea indicate a higher risk of invasiveness of non-native marine organisms relative to current climate conditions

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Marine Life Science & Technology 2024年第1期6卷 143-154页

作者： Branko Glamuzina Lorenzo Vilizzi Marina Piria Ante Zuljevic Ana Bratos Cetinic Ana Pesic Branko Dragicevic Lovrenc Lipej Marijana Pecarevic Vlasta Bartulovic Sanja Grđan Ivan Cvitkovic Tatjana Dobroslavic Ana Fortic Luka Glamuzina Borut Mavric Jovana Tomanic Marija Despalatovic Domen Trkov Marina Brailo Scepanovic Zoran Vidovic Predrag Simonovic Sanja Matic-Skoko Pero Tutman Department of Applied Ecology University of DubrovnikDubrovnikCroatia Department of Ecology and Vertebrate Zoology Faculty of Biology and Environmental ProtectionUniversity of LodzLodzPoland Faculty of Agriculture Department of FisheriesApicultureWildlife Management and Special ZoologyUniversity of ZagrebZagrebCroatia institute of Oceanography and Fisheries SplitCroatia institute of Marine Biology University of MontenegroKotorMontenegro National institute of Biology Marine Biology Station PiranPiranSlovenia Teacher Education Faculty University of BelgradeBelgradeSerbia Faculty of Biology University of BelgradeBelgradeSerbia

Globally,marine bioinvasions threaten marine ecosystem structure and function,with the Mediterranean Sea being one of the most affected *** invasions are expected to increase due to climate *** conducted a risk screening of marine organisms(37 fishes,38 invertebrates,and 9 plants),both extant and‘horizon’(i.e.,not present in the area but likely to enter it).Based on expert knowledge for the Eastern Adriatic Sea coasts of Slovenia,Croatia,and Montenegro,screenings were conducted under both current and predicted climate conditions indicating with an increase in sea surface temperature and salinity of the Adriatic Sea together with changes in precipitation *** aims were to:(1)identify non-native extant and horizon marine species that may pose threats to native biodiversity and(2)evaluate the risk of invasiveness of the selected species under current and predicted climate *** the 84 species screened,there was an increase in those ranked as‘high risk’from 33(39.3%)under current climate conditions and to 47(56.0%)under global warming *** those ranked as‘very high’risk,the increase was from 6(7.1%)to 21(25.0%).Amongst the screened species,the already established high-risk species Pacific oyster Magallana gigas and Atlantic blue crab Callinectes sapidus represent a threat to ecosystem *** the under-representation of marine species in the current European Union List,the species we have ranked as high to very high risk should be included.

关键词： AS-ISK Early detection Introduction vectors/pathways Invasive species Rapid response

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How do nitrogen-limited alpine coniferous forests acquire nitrogen?A rhizosphere perspective

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Forest ecosystems 2022年第6期9卷 745-754页

作者： Huajun Yin Bartosz Adamczyk Qitong Wang Biao Zhu Wanji Guo Xiaomin Zhu Qing Liu Ziliang Zhang CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration and biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu610041China China-Croatia“Belt and Road”Joint Laboratory on biodiversity and ecosystem Services Chengdu Institute of BiologyChinese Academy of SciencesChengdu610041China Natural Resources institute Finland PL 200791HelsinkiFinland institute of Ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijing100871China institute for Sustainability Energyand EnvironmentUniversity of Illinois at Urbana-ChampaignUrbanaIL61801USA

Background:Alpine coniferous forest ecosystems dominated by ectomycorrhizal(ECM)tree species are generally characterized by low soil nitrogen(N)availability but stabilized plant ***,elucidating potential mechanisms by which plants maintain efficient N acquisition is crucial for formulating optimized management practices in these ***:We summarize empirical studies conducted at a long-term field monitoring station in the alpine coniferous forests on the eastern Tibetan Plateau,*** propose a root-soil interaction-based framework encompassing key components including soil N supply,microbial N transformation,and root N uptake in the ***:We highlight that,(i)a considerable size of soil dissolved organic N pool mitigates plant dependence on inorganic N supply;(ii)ectomycorrhizal roots regulate soil N transformations through both rhizosphere and hyphosphere effects,providing a driving force for scavenging soil N;(iii)a complementary pattern of plant uptake of different soil N forms via root-and mycorrhizal mycelium-pathways enables efficient N acquisitions in response to changing soil N ***:Multiple rhizosphere processes abovementioned collaboratively contribute to efficient plant N acquisition in alpine coniferous ***,we identify several research outlooks and directions to improve the understanding and prediction of ecosystem functions in alpine coniferous forests under on-going global changes.

关键词： Plant nitrogen acquisition Root-soil interaction Alpine coniferous forests Nitrogen limitation Rhizosphere

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Permafrost carbon cycle and its dynamics on the Tibetan Plateau

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Science China Life Sciences 2024年第9期67卷 1833-1848页

作者： Leiyi Chen Guibiao Yang Yuxuan Bai Jinfeng Chang Shuqi Qin Futing Liu Mei He Yutong Song Fan Zhang Josep Pe?uelas Biao Zhu Guoying Zhou Yuanhe Yang State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences China National Botanical Garden College of Environmental and Resource Sciences Zhejiang University Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration Ecology and Nature Conservation Institute Chinese Academy of Forestry University of Chinese Academy of Sciences Consejo Superior de Investigaciones Científicas (CSIC) Global Ecology Unit CREAF-CSIC-UAB (Universitat Autònoma de Barcelona) Centre for Ecological Research and Forestry (CREAF) institute of Ecology College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education Peking University Northwest institute of Plateau Biology Chinese Academy of Sciences Key Laboratory of Tibetan Medicine Research Chinese Academy of Sciences

Our knowledge on permafrost carbon(C) cycle is crucial for understanding its feedback to climate warming and developing nature-based solutions for mitigating climate change. To understand the characteristics of permafrost C cycle on the Tibetan Plateau, the largest alpine permafrost region around the world, we summarized recent advances including the stocks and fluxes of permafrost C and their responses to thawing, and depicted permafrost C dynamics within this century. We find that this alpine permafrost region stores approximately 14.1 Pg(1 Pg=1015g) of soil organic C(SOC) in the top 3 m. Both substantial gaseous emissions and lateral C transport occur across this permafrost region. Moreover, the mobilization of frozen C is expedited by permafrost thaw, especially by the formation of thermokarst landscapes,which could release significant amounts of C into the atmosphere and surrounding water bodies. This alpine permafrost region nevertheless remains an important C sink, and its capacity to sequester C will continue to increase by 2100. For future perspectives, we would suggest developing long-term in situ observation networks of C stocks and fluxes with improved temporal and spatial coverage, and exploring the mechanisms underlying the response of ecosystem C cycle to permafrost thaw. In addition, it is essential to improve the projection of permafrost C dynamics through in-depth model-data fusion on the Tibetan Plateau.

关键词： permafrost carbon climate change carbon release carbon sink permafrost thaw thermokarst formation

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Land use and dingo baiting are correlated with the density of kangaroos in rangeland systems

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Integrative Zoology 2023年第2期18卷 299-315页

作者： Stuart J.DAWSON Tracey L.KREPLINS Malcolm S.KENNEDY Juanita RENWICK Mark A.COWAN Patricia A.FLEMING Terrestrial ecosystem Science and Sustainability Harry Butler InstituteMurdoch UniversityMurdochAustralia Department of Primary Industries and Regional Development(present address) South PerthAustralia Department of Primary Industries and Regional Development NorthamAustralia Queensland Department of Environment and Science Australia Queensland Department of Environment and Science MoggillAustralia Department of biodiversity Conservation and AttractionsWoodvaleAustralia

Rangelands worldwide have been subject to broadscale modiﬁcation,such as widespread predator control,intro-duction of permanent livestock water and altered vegetation to improve *** Australia,these landscape changes have resulted in kangaroos(*** macropods)populations increasing over the past 200 ***-garoos are a key contributor to total grazing pressure and in conjunction with livestock and feral herbivores have been linked to land *** used 22 years of aerial survey data to investigate whether the density of 3 macropod species in the southern rangelands of Western Australia was associated with:(i)land use,including type of livestock,total livestock,density of feral goats,type of land tenure,and kangaroo commercial harvest effort;(ii)predator management,including permitted dingo control effort,estimated dingo abundance,and presence of the State Barrier Fence(a dingo exclusion fence);and(iii)environmental variables:ruggedness,rainfall,fractional cover,and total standing dry *** kangaroos(Osphranter rufus)were most abundant inﬂat,open vegetation,on pastoral land,where area permitted for dingo control was high,and numbers were positively associated with antecedent rainfall with a 12-month *** grey kangaroos(Macropus fuliginosus)were most abundant onﬂat,agricultural land,but less abundant in areas with high permitted dingo ***(Osphranter robustus)were most abundant in rugged pastoral land with open vegetation,where permitted dingo control was *** environmental variables are key drivers of landscape productivity and kangaroo populations,anthropogenic factors such as land use and permitted dingo control are strongly associated with kangaroo abundance.

关键词： herbivores livestock macropods overgrazing rangelands total grazing pressure

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Beyond city expansion:multi-scale environmental impacts of urban megaregion formation in China

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National Science Review 2022年第1期9卷 79-91页

作者： Weiqi Zhou Wenjuan Yu Yuguo Qian Lijian Han Steward T.A.Pickett Jing Wang Weifeng Li Zhiyun Ouyang State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences Cary institute of ecosystem Studies Beijing Urban ecosystem Research Station Research Center for Eco-Environmental Sciences Chinese Academy of Sciences

Environmental degradation caused by rapid urbanization is a pressing global ***,little is known about how urban changes operate and affect environments across multiple *** on China,we found urbanization was indeed massive from 2000 to 2015,but it was also very uneven,exhibiting high internal city *** areas in China as a whole became less green,warmer,and had exacerbated PM2.5 ***,environmental impacts differed in newly developed versus older areas of *** impacts were prominent in newly urbanized areas,while old urban areas generally showed improved environmental *** addition,regional environmental issues are emerging as cities expand,connect and interact to form urban *** turn urbanization into an opportunity for,rather than an obstacle to,sustainable development,we must move beyond documenting urban expansion to understand the environmental consequences of both internal city dynamics and the formation of urban megaregions.

关键词： urbanization urban and regional sustainability landscape change air pollution urban heat island

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Effect of UV Radiation and Other Abiotic Stress Factors on DNA of Different Wild Plant Species Grown in Three Successive Seasons in Alpine and Subalpine Regions

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Phyton-International Journal of Experimental Botany 2022年第2期91卷 293-313页

作者： Svetla P.Gateva Gabriele Jovtchev Tsveta V.Angelova Tzvetana P.Nonova Nikolay Tyutyundzhiev Elena G.Geleva Kostadin Katrandzhiev Nina A.Nikolova Dimitar Dimitrov Christo V.Angelov Department of ecosystem Research Environmental Risk Assessment and Conservation BiologyInstitute of Biodiversity and Ecosystem ResearchBAS2 Gagarin Str.1113SofiaBulgaria Nuclear Scientific Experimental Base Institute for Nuclear Researches and Nuclear EnergyBAS72 Tzarigradsko Chaussee Blvd1784SofiaBulgaria Central Laboratory of Solar Energy and New Energy Sources BAS72 Tzarigradsko Chaussee Blvd1784SofiaBulgaria National Museum of Natural History BAS1 Tsar Osvoboditel Blvd1000SofiaBulgaria

Plants in natural ecosystems are exposed to a combination of UV radiation,ionizing radiation(IR)and other abiotic *** factors change with the *** investigated DNA alterations of some wild plants of different plant families in natural ecosystems at three altitudes in Rila Mountain,Bulgaria(1500,1782,and 2925 m above sea level(a.s.l.)exposed to UV radiation,IR and other abiotic stresses,to assess the tolerance of plant species to the changing environmental conditions in three successive growth *** this purpose,physicochemical,cytogenetic,and molecular methods were *** damage was assessed by micronucleus test and molecular method comet assay adapted and applied by us to wild plant species from Onagraceae,Rosaceae,Boraginaceae,Saxifragaceae,Orobanchaceae,Asteraceae and Poaceae families,growing at three different *** in the DNA sensitivity and the level of tolerance was observed among the plant species in response to combined abiotic factors assessed by induced DNA damage and gross beta *** studied representatives of Poaceae were less susceptible than the other studied species at all three altitudes and showed close level of DNA injuries to that of unaffected control plant grown in laboratory *** lower levels of DNA damage of these wild plant species corresponded to their lower ability to accumulate *** was a particularly pronounced low level of DNA injuries in the plant species at the highest *** level of DNA damage showed correlation with the values of some abiotic environmental *** results would contribute to the elucidation of the extent of adaptation of plant species to the continuously changing environment and would be useful in selecting sensitive herbaceous monitor species for environmental impact assessment at mountain and alpine sites.

关键词： Altitude climatological conditions DNA damage natural UV radiation and ionizing radiation wild plant species

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Plateau pikas near roads are bold and silent when facing a potential predator

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Current Zoology 2023年第5期69卷 552-558页

作者： Bicheng Zhua Jiapeng Qu Jianguo Cui CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration and biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041SichuanChina Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesQinghai 810008China Qinghai Haibei National Field Research Station of Alpine Grassland ecosystem Qinghai 810008China

Human disturbance,particularly road traffic,is one of the greatest threats to *** the association between alerting behavior and the survival of animals,it is important to study the effects of road traffic on alerting behavior of *** studies assessing the shortterm impact of road traffic on alerting behavior of wildlife have focused on vigilance ***,studies on the use of alarm calls are scarce,and it is unclear whether such behavioral responses change after repeated exposure to road *** assessed the alerting behavior of plateau pikas(Ochotona curzoniae)who were near or far from roads when facing a potential *** found that pikas near roads exhibited shorter vigilance and tolerance distances,and produced fewer alarm calls than those relatively far away from ***,both vigilance and tolerance distances of plateau pikas were significantly positively correlated with the distance from the burrow to the *** traffic reduced antipredator responses and shaped alerting behavior;that is,pikas near roads were bolder and more silent compared to those far away from *** findings suggest that increasing urbanization will have corresponding effects on animal behavior,which may have significant fitness effects in the future.

关键词： alarm call flight initiation distance plateau pika Qinghai-Tibet Plateau road traffic vigilant behavior

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Divergent contributions of spring and autumn photosynthetic phenology to seasonal carbon uptake of subtropical vegetation in China

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Journal of Geographical Sciences 2024年第7期34卷 1280-1296页

作者： PENG Ying LI Peng ZHOU Xiaolu LUO Yunpeng ZHANG Cicheng WANG Longjun LI Tong PENG Changhui School of Geographic Sciences Hunan Normal UniversityChangsha410081China Department for Biogeochemical Integration Max-Planck-Institute for BiogeochemistryJena07745Germany Department of Biology Sciences Institute of Environment SciencesUniversity of Quebec at MontrealC.P.8888Succ.Centre-VilleMontrealH3C 3P8Canada

Phenological changes play a central role in regulating seasonal variation in the ecological processes,exerting significant impacts on hydrologic and nutrient cycles,and ultimately influencing ecosystem functioning such as carbon ***,the potential impact mechanisms of phenological events on seasonal carbon dynamics in subtropical regions are *** knowledge gaps hinder from accurately linking photosynthetic phenology and carbon sequestration *** chlorophyll fluorescence remote sensing and productivity data from 2000 to 2019,we found that an advancement in spring phenology increased spring gross(GPP)and net primary productivity(NPP)in subtropical vegetation of China by 2.1 gC m^(-2)yr^(-1)and 1.4 gC m^(-2)yr^(-1),respectively.A delay in autumn phenology increased the autumnal GPP and NPP by 0.4 gC m^(-2)yr^(-1)and 0.2 gC m^(-2)yr^(-1),***,the contribution of the spring phenology to spring carbon uptake increased significantly during the study period,while this positive contribution showed a nonsignificant trend in *** comparison,the later autumn phenology could significantly contribute to the increase in autumnal carbon uptake;however,this contributing effect was *** analysis indicated that these phenomena have been caused by the increased leaf area and enhanced photosynthesis due to earlier spring and later autumn phenology,*** results demonstrate the diverse impacts of vegetation phenology on the seasonal carbon sequestration ability and it is imperative to consider such asymmetric effects when modeling ecosystem processes parameterized under future climate change.

关键词： subtropics vegetation phenology remote sensing carbon cycle climate change

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The 2/3 scaling of twig nitrogen to phosphorus in woody plants

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Forest ecosystems 2022年第4期9卷 521-528页

作者： Zhiqiang Wang Karl JNiklas Zeqing Ma Dechun Jiang Jianming Deng Sichuan Zoige Alpine Wetland ecosystem National Observation and Research Station Southwest Minzu UniversityChengdu610041China institute of Qinghai-Tibetan Plateau Southwest Minzu UniversityChengdu610041China Plant Biology Section School of Integrative Plant ScienceCornell UniversityIthacaNY14853USA Center for Forest ecosystem Studies and Qianyanzhou Ecological Station Key Laboratory of Ecosystem Network Observation and ModelingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing100101China Chengdu institute of Biology Chinese Academy of SciencesChengdu610041China State Key Laboratory of Grassland Agro-ecosystem College of EcologyLanzhou UniversityLanzhou730000China

Background:Nitrogen(N)and phosphorus(P)are important elements for plant metabolism and ***fore,the quantification of the scaling relationship of N to P in plant organs can help us understand many fundamental ecological *** general scaling relationships between N and P in leaves and in fine roots have been *** compared to leaves and fine roots,however,little information is available on the N versus P scaling relationship in the stems of woody plants,especially for *** this study,a comprehensive dataset comprising 2,038 N=P paired observations for a total of 536 woody species was compiled and analyzed to determine whether a general scaling relationship ***:The global mean values of twig N and P concentrations and N:P ratios were 9.33 mg⋅g^(-1),1.12 mg⋅g^(-1) and 10.16,*** N and P concentrations and N:P ratios differed significantly within and across functional groups and *** all of the species,a uniform 0.67 scaling exponent of twig N to P was observed across different functional groups and biomes,i.e.,a 2/3-power scaling relationship was ***,this numerical value differed across different sites,albeit converging onto 0.67 with increasing sample *** total phosphorus was the largest contributor to the variation in the numerical value of the scaling ***:These results provide useful parameters for stoichiometric growth models,and advance our understanding of the mechanisms underlying plant nutrient *** study has potential implications in predicting responses of nutrient cycling in terrestrial ecosystem responses to changes in the environment.

关键词： Nitrogen Phosphorus Scaling exponents Twigs Woody plants

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Responses of macrobenthic communities to patchy distributions of heavy metals and petroleum hydrocarbons in sediments:A study in China's Zhoushan Archipelago

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Acta Oceanologica Sinica 2021年第9期40卷 117-125页

作者： Yanbin Tang Qiang Liu Yibo Liao Konglin Zhou Lu Shou Key Laboratory of Marine ecosystem dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China institute of Oceanography Minjiang UniversityFuzhou 350108China

This study conducted four cruises during 2014–2017 to investigate relationships between macrobenthic communities and sediment contaminations in sea area around the Zhoushan *** sites were categorized into three groups:high total heavy metal contamination content(HHMC),high total petroleum hydrocarbon content(HTPH),and low content ratio of heavy metal contamination content to total petroleum hydrocarbon content(HMC/TPH)*** main taxa of macrofauna(polychaetes,bivalves,gastropods,and crustaceans)were determined to respond to environmental factors *** tolerant polychaetes being the minimal impact by environmental factors,bivalves were threated by heavy metal pollutions in ***,body size distribution frequency demonstrated that macrofauna in the low HMC/TPH areas were less disturbed by contamination than those in the HHMC and HTPH *** result represented the presentation of sensitive species while tolerant species are usually considered as small size ***,this study confirmed the hypothesis that the contamination levels of small-scale patches is indicated by the condition of macrobenthic communities.

关键词： macrobenthos heavy metal petroleum hydrocarbon contaminant effect Zhoushan Archipelago

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