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Macrophyte growth forms shift along the trophic gradient of lakes 大型植物的生长形式沿着湖泊的营养梯度变化
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-16 DOI: 10.1080/20442041.2023.2271307
Willem Kaijser, Daniel Hering, Jochem Kail
Abstract:Phototrophic organisms in lakes change from macrophyte to phytoplankton dominated states along trophic gradients. Before lakes reach a turbid and phytoplankton dominated state, shifts from meadow-forming Characeae to canopy-forming macrophyte species can occur, where Characea are present (i.e. especially in oligo to mesotrophic lakes with sand or gravel substrate). However, eutrophication intensity causing this shift has not yet been estimated.We analysed data from 132 lakes located in Mecklenburg-Vorpommern (Germany). With a Generalized Linear Model (GLM) and Random Forest (RF) models complemented with grid approximation, we analysed (i) if species richness of macrophytes declines along eutrophication gradients, (ii) above which chlorophyll-a concentrations the abundance of Characeae declines, and (iii) above which chlorophyll-a concentrations the abundance canopy-forming species declines.The number of macrophyte taxa declined gradually following a log-linear trend and with increasing chlorophyll-a concentrations. Based on the RF models, the abundance of Characeae already decreased at 5-13 µg L-1 chlorophyll-a, whereas canopy-forming species showed a monotonous and slight unimodal response decreasing at 35-103 µg L-1 chlorophyll-a.The results support the theory of shifts in growth forms along eutrophication gradients in lakes and provides, for the first time, estimations of chlorophyll-a concentrations required for these shifts. Changes in growth forms are obvious indicators for eutrophication and can serve as an additional incentive to improve lake trophic status.Keywords: aquatic plantscanopy forming macrophytesCharaceaechlorophyll-aDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. AcknowledgementsWe would like to thank the Ministry of Agriculture and the Environment of the federal state of Mecklenburg-Vorpommern for kindly providing the macrophyte and water quality data of the lakes in Mecklenburg-Vorpommern. This study was partly conducted within the AQUATAG project, funded by the German Federal Ministry of Education and Research, grant number 033W046C. Willem Kaijser and Daniel Hering were partly supported by the Collaborative Research Centre 1439 RESIST (Multilevel Response to Stressor Increase and Decrease in Stream Ecosystems; www.sfb-resist.de) funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation; CRC 1439/1, project number: 426547801). The authors declare no conflict of interests.Data availability statementData are available from the respective authority upon reasonable request.
摘要/ Abstract摘要:湖泊光养生物沿营养梯度由以大型植物为主向以浮游植物为主转变。在湖泊达到浑浊和浮游植物为主的状态之前,从草甸形成的特征到树冠形成的大型植物物种的转变可能发生在特征存在的地方(即特别是在具有沙子或砾石基质的寡营养型湖泊到中营养型湖泊)。然而,引起这种转变的富营养化强度尚未得到估计。我们分析了位于梅克伦堡-前波莫瑞(德国)的132个湖泊的数据。利用广义线性模型(GLM)和随机森林(RF)模型与网格近似相结合,我们分析了:(1)大型植物物种丰富度是否沿着富营养化梯度下降,(2)叶绿素-a浓度高于富营养化梯度,特征丰度下降,(3)叶绿素-a浓度高于富营养化梯度,树冠形成物种丰度下降。随着叶绿素-a浓度的增加,植物类群数量呈对数线性递减趋势。基于RF模型,在5-13µg L-1叶绿素-a时,特征物种的丰度已经下降,而在35-103µg L-1叶绿素-a时,冠层形成物种的丰度表现出单调和轻微的单峰响应。研究结果支持了湖泊富营养化梯度中生长形式变化的理论,并首次提供了这些变化所需的叶绿素-a浓度的估计。生长形式的变化是富营养化的明显指标,可以作为改善湖泊营养状况的额外激励。关键词:水生植物;扫描形成大型植物;特征;叶绿素;免责声明作为对作者和研究人员的服务,我们提供这个版本的接受稿件(AM)。在最终出版版本记录(VoR)之前,将对该手稿进行编辑、排版和审查。在制作和印前,可能会发现可能影响内容的错误,所有适用于期刊的法律免责声明也与这些版本有关。我们要感谢联邦梅克伦堡-前波莫瑞州农业和环境部提供梅克伦堡-前波莫瑞州湖泊的大型植物和水质数据。这项研究部分是在AQUATAG项目中进行的,该项目由德国联邦教育和研究部资助,资助号为033W046C。william Kaijser和Daniel Hering得到了1439 RESIST(溪流生态系统对压力源增加和减少的多层次响应)合作研究中心的部分支持;www.sfb-resist.de)由德国研究基金会(DFG,德国研究基金会;CRC 1439/1项目编号:426547801)。作者声明没有利益冲突。数据可用性声明应合理要求,可从有关当局获得数据。
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引用次数: 0
Carbon and nutrient sequestration in small impoundments: a regional study with global implications 小水库的碳和营养固存:具有全球意义的区域研究
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-11 DOI: 10.1080/20442041.2023.2265799
John R. Jones, Kimberly Pope-Cole, Daniel V. Obrecht, J.D. Harlan, Lesley B. Knoll, John A. Downing
AbstractThe rate of sequestration of carbon, nitrogen and phosphorus by lentic ecosystems informs both the global carbon budget and the remediation of eutrophication. Here we estimate carbon, nitrogen and phosphorus burial in sediments of 34 lakes in Missouri, USA, and compare them to those found in other agricultural areas as well as to global estimates. Mean sediment accumulation rates varied by orders of magnitude among study regions, with the largest values (average 6 cm y-1) in impounded systems surrounded by intensive agriculture. Rates increased with the drainage ratio and decreased with the abundance of other surface water in the catchment (e.g., farm ponds). Average organic carbon burial differed by an order of magnitude among study regions (average 150-2100 g m-2 y-1) with differences related to the drainage ratio and eutrophication. Organic carbon burial was strongly correlated with burial rates of nitrogen and phosphorus. Comparisons with a diversity of global data show that many Midwestern USA impoundments have extremely high rates of biogeochemical burial likely due to the details of agricultural cropping systems, landscape configuration, and soil characteristics.Keywords: carbonlakesnitrogenphosphorussedimentsequestrationDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. AcknowledgementsFunding for the Missouri data was provided by the Missouri Department of Natural Resources and Missouri Agricultural Experiment Station and Food & Agriculture Research Institute. Specific appreciation is extended to Anthony Thorpe and Carol Pollard.
摘要生态系统对碳、氮、磷的固存速率反映了全球碳收支和富营养化的修复。在这里,我们估计了美国密苏里州34个湖泊沉积物中碳、氮和磷的埋藏,并将它们与其他农业区以及全球估计值进行了比较。在研究区域之间,平均泥沙积累速率有数量级的差异,在集约化农业包围的蓄水系统中,其值最大(平均为6 cm -1)。发病率随排水比的增加而增加,随集水区其他地表水(如农场池塘)的丰富而减少。各研究区平均有机碳埋深存在一个数量级差异(平均150 ~ 2100 g m-2 y-1),差异与排水比和富营养化有关。有机碳埋深与氮、磷埋深呈正相关。与全球数据多样性的比较表明,美国中西部的许多水库具有极高的生物地球化学埋藏率,这可能是由于农业种植系统、景观配置和土壤特征的细节。关键词:碳湖氮磷沉积封存免责声明作为对作者和研究人员的服务,我们提供此版本的已接受稿件(AM)。在最终出版版本记录(VoR)之前,将对该手稿进行编辑、排版和审查。在制作和印前,可能会发现可能影响内容的错误,所有适用于期刊的法律免责声明也与这些版本有关。密苏里州的数据由密苏里州自然资源部、密苏里州农业实验站和食品与农业研究所提供资金。特别赞赏的是安东尼·索普和卡罗尔·波拉德。
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引用次数: 0
Impacts of chemical precipitation of phosphorus with polyaluminum chloride in two eutrophic lakes in southwest Finland 芬兰西南部两个富营养化湖泊中聚氯化铝化学沉淀磷的影响
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-03 DOI: 10.1080/20442041.2023.2266177
Jouko Sarvala, Harri Helminen
AbstractIn an attempt to improve water quality in two eutrophic shallow Finnish lakes, Kirkkojärvi and Littoistenjärvi, phosphorus precipitation with polyaluminum chloride was performed in June 2002 and May 2017, respectively. Here we compare the effects of the chemical treatment between the lakes to enhance our understanding of the mechanisms involved and to improve the predictability of similar management actions in the future. All plankton was killed in the treatment, but phytoplankton recovered in four weeks and crustacean zooplankton in two months. Because removal fishing had not been successful, the chemical dosage in Kirkkojärvi was intentionally set so high that the treatment killed all fish. In Littoistenjärvi pH was adjusted so that most fish survived. In Kirkkojärvi, the summer phosphorus (TP) and chlorophyll (Chl) concentrations in three years after the treatment dropped by 85 and 88% compared to those recorded three years before the treatment. Cyanobacterial biomass declined by 88%, only occasional blooms appearing in three out of twenty years. The average TP and Chl of the post-treatment period 2006–2020 indicated substantial improvement in the ecological state from “bad” to “moderate” rating of the EU Water Framework Directive (WFD). In Littoistenjärvi, the corresponding declines due to the Al treatment were 72% in TP and 87% in Chl concentration, and 92% in cyanobacterial biomass. Longevity of treatment effects was estimated using the upper boundaries of the WFD quality classes as the target values. Water quality changes followed the internal loading of TP, affected by temperature and pH.Keywords: total phosphoruschlorophyll aeutrophicationlake managementshallow lakesDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Acknowledgements:Thanks are due to the numerous people involved in the monitoring and management of the study lakes. The actual chemical treatments became possible through the dedicated efforts of Jukka Heikkilä (Littoistenjärvi) and Eeva Ståhle (Kirkkojärvi). Funding was provided by the local municipalities, the Ministry of the Environment, and the Academy of Finland.Disclosure statement:The authors report there are no competing interests to declare.Data availability statement:Water chemistry, phytoplankton and fish data are available through Finnish Environment Institute’s open data service. Other data are available from the authors on request.
摘要为了改善芬兰两个富营养化浅湖Kirkkojärvi和Littoistenjärvi的水质,分别于2002年6月和2017年5月采用聚合氯化铝沉淀磷。在这里,我们比较了湖泊之间化学处理的效果,以增强我们对所涉及机制的理解,并提高未来类似管理行动的可预测性。在处理过程中,所有浮游生物都被杀死,但浮游植物在四周内恢复,甲壳类浮游动物在两个月内恢复。由于移除捕捞没有成功,Kirkkojärvi的化学药剂剂量被故意设置得很高,以至于所有鱼都被杀死了。在Littoistenjärvi中,pH值被调整,以便大多数鱼存活。在Kirkkojärvi中,处理后3年夏季磷(TP)和叶绿素(Chl)浓度分别比处理前3年下降了85%和88%。蓝藻生物量下降了88%,只有三分之二的时间里偶尔出现大量繁殖。处理后2006-2020年的平均总磷和总氯均表明,生态状态从欧盟水框架指令(WFD)的“坏”等级大幅改善到“中等”等级。在Littoistenjärvi中,由于Al处理,TP浓度下降了72%,Chl浓度下降了87%,蓝藻生物量下降了92%。使用WFD质量分类的上限作为目标值来估计治疗效果的寿命。关键词:总磷叶绿素富营养化湖泊管理浅湖免责声明为服务于作者和研究人员,我们提供此版本的已接受稿件(AM)。在最终出版版本记录(VoR)之前,将对该手稿进行编辑、排版和审查。在制作和印前,可能会发现可能影响内容的错误,所有适用于期刊的法律免责声明也与这些版本有关。致谢:感谢参与研究湖泊监测和管理的众多人员。通过Jukka Heikkilä (Littoistenjärvi)和Eeva stamathle (Kirkkojärvi)的不懈努力,实际的化学治疗成为可能。资金由当地市政当局、环境部和芬兰科学院提供。披露声明:作者报告无利益竞争需要申报。数据可用性声明:水化学、浮游植物和鱼类数据可通过芬兰环境研究所的开放数据服务获得。其他数据可应要求向作者索取。
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引用次数: 0
Towards modeling data-poor lakes at the regional scale using parameters from data-rich lakes and relationships to lake characteristics. 利用数据丰富的湖泊参数及其与湖泊特征的关系,在区域尺度上对数据贫乏的湖泊进行建模。
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-02 DOI: 10.1080/20442041.2023.2265798
Marianne Côté, Göran Englund, Tom Andersen, Dag O. Hessen, Anders G. Finstad, Claude Bélanger, Raoul-Marie Couture
AbstractLakes that are pivotal for recreation and economically relevant activities are often remote and not very well studied, which hinders the application of predictive lake models for their management. Here, we provide an approach to simulate, by means of the process-oriented model MyLake, water temperature, ice cover duration, dissolved oxygen, and light attenuation in 198 data-poor lakes based on parameters obtained for a subgroup of 12 data-rich lakes and morphometric data. Specifically, the model is first calibrated using a genetic algorithm on well-studied lakes. Then, simple relationships between the fitted parameters and lake-catchment morphometric properties are derived. The results of simulations using fitted and derived parameters are then compared. The loss in goodness-of-fit, expressed as root mean square error (RMSE), incurred by using estimated rather than calibrated parameters, is 0.17 oC for water temperature and 0.82 mg L-1 for dissolved oxygen. These general relationships are then used to provide the model parameters for 198 data-poor lakes distributed throughout Sweden and model these lakes. Overall, this proof of concept allows simulating lakes selected based on their relevance for lake management rather than based on the availability of extensive field datasets.Keywords: LakesLake modelingoxythermal habitatsclimate change impactmodel calibrationdata-poor lakesDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. AcknowledgmentsWe thank Koji Tominaga (Nanyang Technological University, Singapore) and Benjamin Laken (Cervest Inc., London, United-Kingdom) for the retrieval and preparation of the climate data. RMC acknowledges funding from the Sentinel North program of Université Laval, made possible, in part, thanks to funding from the Canada First Research Excellence program. Support from the Natural Sciences and Engineering Research Council of Canada, through the Discovery Grant program, from the Advancing climate science in Canada project “Changing carbon sinks in subarctic Canada” and from the Institut nordique du Québec (INQ) is also acknowledged. GE, DOH, TA and AGF acknowledge support from the Research Council of Norway projects #224779 and #221410.
摘要对休闲娱乐和经济相关活动至关重要的湖泊往往地处偏远,研究不够深入,这阻碍了湖泊预测模型在湖泊管理中的应用。本文利用面向过程的MyLake模型,基于12个数据丰富湖泊的子组参数和形态计量学数据,对198个数据贫乏湖泊的水温、冰盖持续时间、溶解氧和光衰减进行了模拟。具体来说,该模型首先使用遗传算法在经过充分研究的湖泊上进行校准。然后,导出了拟合参数与湖泊集水区形态特征之间的简单关系。然后比较了拟合参数和推导参数的模拟结果。用均方根误差(RMSE)表示的拟合优度损失,由于使用估计而不是校准的参数,水温为0.17℃,溶解氧为0.82 mg L-1。然后使用这些一般关系为分布在瑞典各地的198个缺乏数据的湖泊提供模型参数,并对这些湖泊进行建模。总的来说,这种概念证明允许根据湖泊管理的相关性来模拟湖泊,而不是基于广泛的现场数据集的可用性。关键词:湖泊湖泊模型氧热生境气候变化影响模型校准数据贫乏湖泊免责声明作为对作者和研究人员的服务,我们提供此版本的接受稿件(AM)。在最终出版版本记录(VoR)之前,将对该手稿进行编辑、排版和审查。在制作和印前,可能会发现可能影响内容的错误,所有适用于期刊的法律免责声明也与这些版本有关。感谢Koji Tominaga(新加坡南洋理工大学)和Benjamin Laken(英国伦敦cerest公司)对气候数据的检索和准备工作。RMC承认来自拉瓦尔大学北哨兵项目的资助,这在一定程度上要归功于加拿大第一研究卓越项目的资助。加拿大自然科学与工程研究委员会通过“发现基金”项目、加拿大气候科学推进项目“改变加拿大亚北极地区的碳汇”以及北欧quimac研究所(INQ)的支持也得到了认可。GE、DOH、TA和AGF感谢挪威研究委员会项目#224779和#221410的支持。
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引用次数: 0
Deepwater dissolved oxygen shows little ecological memory between lake phenological seasons 深水溶解氧在湖泊物候季节间表现出较弱的生态记忆
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-02 DOI: 10.1080/20442041.2023.2265802
Rachel M. Pilla, Craig E. Williamson, Erin P. Overholt, Kevin C. Rose, Stella A. Berger, Raoul-Marie Couture, Heleen A. de Wit, Ignacio Granados, Hans-Peter F. Grossart, Georgiy B. Kirillin, Alo Laas, Jens C. Nejstgaard, James A. Rusak, Mark W. Swinton, Manuel Toro, Huaxia Yao
Abstract:Depletion of deepwater dissolved oxygen (DO) in lakes has become increasingly prevalent and severe due to many external stressors, potentially threatening human-derived ecosystem services ranging from drinking water quality to fisheries. Using year-round, high-frequency DO data from 12 dimictic lakes, we compared three measures of deepwater DO depletion during winter and summer: DO depletion rate, DO minimum, and hypoxia duration. Hypoxia (DO < 3 mg L-1) occurred in over half of the lakes and persisted an average of 83% longer in summer than in winter. While we found no difference in DO depletion rates between winter versus summer, these rates were significantly related to lake morphology in winter but trophic state in summer. In assessing cross-seasonal linkages, we found limited evidence for significant legacy effects in deepwater DO availability. Only fall mixing efficacy significantly responded to the previous summer’s minimum DO saturation, but always reached moderate to high DO replenishment levels (> 65%) regardless of the previous summer’s DO depletion severity. This lack of ecological memory in deepwater DO depletion across seasons suggests that deepwater DO largely resets during spring and fall mixing periods in most years in these dimictic lakes. Understanding the patterns and drivers in deepwater DO depletion in both winter and summer is a key step forward for predicting future chemical and biological consequences of seasonal DO depletion and managing lake ecosystem health, as well as the effects that climate change may have on these patterns.Key Words: oxygen depletionlegacy effectslake mixingclimate changeoxygen minimum zoneswater qualityecological memoryDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Acknowledgements:This work was conceived at the Global Lake Ecological Observatory Network (GLEON), and benefited from continued participation and travel support from GLEON. R.M.P., C.E.W., and E.P.O. were supported by US National Science Foundation grants DEB 1754265, DEB 1754276, and DEB 1950170 and Ohio Eminent Scholar of Ecosystem Ecology funds. K.C.R. was funded by NSF grants 1638704, 1754265, and 1761805. S.A.B., H.P.G., and J.C.N. were supported by the German Federal Ministry of Education and Research (BMBF) within the Collaborative Project “Bridging in Biodiversity Science - BIBS” (01LC1501G) and H.P.G.by the Leibniz Foundation. R.-M. C. was supported by the Sentinel North Research Chair in Aquatic Geochemistry (Sentinel North, a Canada First Research Excellence Fund Program). H.W. received support from the Norwegian Research Council
摘要/ Abstract摘要:湖泊深水溶解氧(DO)的耗竭日益普遍和严重,潜在地威胁着人类衍生的生态系统服务,包括饮用水质量和渔业。利用来自12个双溶解氧湖泊的全年高频DO数据,我们比较了冬季和夏季深水DO损耗的三种测量方法:DO损耗率、DO最小值和缺氧持续时间。缺氧(DO < 3 mg L-1)发生在一半以上的湖泊中,夏季持续时间比冬季平均长83%。虽然我们发现冬季和夏季的DO消耗率没有差异,但这些速率在冬季与湖泊形态显著相关,而在夏季与营养状态显著相关。在评估跨季节联系时,我们发现有限的证据表明深水DO可用性存在显著的遗留影响。只有秋季混合效率对前一个夏季的最低DO饱和度有显著反应,但无论前一个夏季的DO耗尽严重程度如何,总能达到中等到较高的DO补充水平(约65%)。深水DO在不同季节耗竭中缺乏生态记忆,这表明深水DO在大多数年份的春季和秋季混合期大量重置。了解冬季和夏季深水DO耗竭的模式和驱动因素是预测季节性DO耗竭的未来化学和生物后果、管理湖泊生态系统健康以及气候变化可能对这些模式产生的影响的关键一步。关键词:氧气消耗,遗产效应,湖泊混合,气候变化,氧气最小带,水质,生态记忆免责声明作为对作者和研究人员的服务,我们提供这个版本的接受稿件(AM)。在最终出版版本记录(VoR)之前,将对该手稿进行编辑、排版和审查。在制作和印前,可能会发现可能影响内容的错误,所有适用于期刊的法律免责声明也与这些版本有关。感谢:这项工作是由全球湖泊生态观测站网络(GLEON)构思的,并受益于GLEON的持续参与和旅行支持。R.M.P、C.E.W和E.P.O.得到了美国国家科学基金会DEB 1754265、DEB 1754276和DEB 1950170基金和俄亥俄州生态系统生态学杰出学者基金的资助。kc.r由NSF拨款1638704,1754265和1761805资助。s.a.b., h.p.g.和J.C.N.得到了德国联邦教育和研究部(BMBF)在“生物多样性科学桥接- BIBS”(01LC1501G)合作项目中的支持,h.p.g.得到了莱布尼茨基金会的支持。R.-M。C.由北哨兵水生地球化学研究主席(北哨兵,加拿大第一研究卓越基金项目)支持。hw得到了挪威研究理事会的支持(过渡中的湖泊244558;气候243644)和北欧卓越生物水中心(Nordforsk, 82263)。Langtjern的长期监测项目得到了挪威环境署的支持。I.G.和M.T.由西班牙经济和竞争力部通过PaleoNAO (CGL2010-15767/BTE)和PaleoModes (CGL2016-75281-C2-1-R)项目资助。西美拉的多探针由水文研究中心(CEDEX)提供。G.K.由德国研究基金会(DFG)资助:项目KI 853-11 -1 -2, KI 853-13/1;欧盟北极陆地研究和监测国际网络计划(INTERACT):“ConCur”、“LACUNA”和“IceWave”项目。爱沙尼亚研究委员会资助项目PSG32和PRG709。J.R.和H.Y.得到了美洲全球变化研究所(CRN3038)和美国国家科学基金会基金GEO-1128040和EF-1137327的支持。M.S.的部分资金是由海伦·v·弗莱希基金会提供的。此外,我们感谢拉卡瓦克保护区和生物野外站进入拉卡瓦克湖和使用研究设施;进入韦伍德湖的韦伍德湖协会;A. Penske负责维护施特克林湖IGB- lakelab附带的测量设备,G. Mohr负责冰盖观测,以及IGB第三部门的施特克林湖技术小组提供进一步的数据;León卡斯蒂利亚大区政府Ávila中部环境服务部门,批准了在西米拉湖(格雷多斯山脉地区公园)进行研究的许可,并提供了直升机飞行的宝贵帮助,以运输最重的现场设备;Kilpisjärvi生物站的人员,他们的支持提供了北极高海拔地区的长期湖泊监测;达林淡水研究所的工作人员协助部署和检索传感器;C.麦康奈尔、T.菲尔德和R。 英格拉姆呼叫哈普湖现场支援。利益声明:作者报告无竞争利益需要声明。作者贡献声明、cew和epo构思了这份手稿。R.M.P.在C.E.W、E.P.O和K.C.R的大量贡献和反馈下撰写了这份手稿。R.M.P、C.E.W、E.P.O、K.C.R、S.A.B、r.m.c、H.A.D、i.g.、h.p.f.g、g.b.k.、a.l.、J.C.N、J.A.R、M.W.S、M.T和H.Y.对这份手稿的数据采集、分析和起草做出了贡献。所有作者都认可了最后提交的稿件。数据可用性声明:支持本研究结果的数据在Zenodo网站https://doi.org/10.5281/zenodo.7916515上公开提供,遵循国际知识共享署名4.0 (Pilla et al. 2023)。
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引用次数: 0
High incidence of exotic ostracods in the rice fields of a protected Mediterranean wetland 地中海湿地保护稻田外来介形虫高发
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-09-25 DOI: 10.1080/20442041.2023.2262353
Maria Bisquert-Ribes, David J. Horne, Joan Miguel Benavente, Raül Martínez, Pablo Vera, Juan Rueda, Francesc Mesquita-Joanes
AbstractMediterranean rice fields are suited for biological invasions, as they are human-impacted temporary water bodies filled during summer, a hot period with scarce rains in the area. These anthropogenic ecosystems have been previously identified as potential gateways for exotic ostracods to colonize nearby wetlands. In this work, we aimed at comparing the rice fields ostracod composition and a shallow lake in a protected Mediterranean wetland (Albufera N2000 site, Eastern Iberian Peninsula). We found 37 ostracod species, 13 of which were considered exotic. Rice fields harbored the highest number of both native and exotic ostracod taxa (16 and 12 species, respectively). Our hypothesis that exotic species were more abundant during summer, whereas native species dominated the community in winter was confirmed by the analysis of temporal changes along the rice field cycle. Comparing the ostracod composition of rice fields with that of the littoral and central parts of the hypertrophic Lake Albufera showed a clear differentiation according to a spatially constrained cluster analysis, with the richest ostracod community corresponding to the rice fields, whereas the center of the lake, with scarce vegetation, had the lowest species richness. Finally, we suggest some criteria that could be followed to consider an ostracod species as native or exotic when its origin is unknown and discuss the potential origin of the exotic species found, the pathways they might have used to arrive and to establish in new areas, and the biological traits that may facilitate the spread of ostracods over new areas after their arrival.Keywords: alien crustaceansfreshwater invasionsOstracodapaddy fieldsshallow lakeDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. AcknowledgementsWe wish to thank the staff responsible of the sampling campaigns, B. Dies (Fundació Assut), G. Valieri (SIPCAM) and SEO/BirdLife (Valencia). We would also like to thank P. Mateache, former director of the Albufera N2000 site; M. Zizlavsky for his assistance in sample processing; and all SEO/BirdLife volunteers for their assistance during sampling campaigns. Giles Miller is greatly thanked for his support during the stay of MB-R at the NHM. The SCSIE microscopy personnel at the University of Valencia are acknowledged for their help with SEM imaging. We are very grateful to the anonymous reviewers for their helpful suggestions on a previous version of the manuscript.FundingThis publication is part of I + D + i project PID2020-112959GB-I00, funded by MCIN/AEI/10.13039/501100011033. This research was also supported by
摘要地中海稻田是受人类影响的临时水体,夏季是该地区降雨稀少的炎热季节,因此适合生物入侵。这些人为生态系统以前被认为是外来介形虫在附近湿地定居的潜在门户。在这项工作中,我们旨在比较地中海保护湿地(东伊比利亚半岛Albufera N2000遗址)稻田介形类组成和浅湖。我们发现了37种介形虫,其中13种被认为是外来物种。稻田的本地介形类和外来介形类数量最多,分别为16种和12种。我们的假设是外来物种在夏季更丰富,而本地物种在冬季占优势,这一假设通过稻田周期的时间变化分析得到了证实。通过空间约束聚类分析,将肥厚的阿尔布费拉湖的稻田与湖岸和湖心地区的介形类组成进行比较,发现稻田对应的介形类群落最丰富,湖心地区植被稀少,物种丰富度最低。最后,我们提出了一些可以遵循的标准,当其起源未知时,可以将介形虫物种视为本地或外来物种,并讨论了发现的外来物种的潜在起源,它们可能用来到达并在新地区建立的途径,以及可能促进介形虫到达新地区后在新地区传播的生物学特性。关键词:外来甲壳类;淡水入侵;浅水湖泊;在最终出版版本记录(VoR)之前,将对该手稿进行编辑、排版和审查。在制作和印前,可能会发现可能影响内容的错误,所有适用于期刊的法律免责声明也与这些版本有关。我们要感谢负责采样活动的工作人员,B. Dies (Fundació Assut), G. Valieri (SIPCAM)和SEO/BirdLife(瓦伦西亚)。我们还要感谢Albufera N2000站点的前主任P. Mateache;Zizlavsky先生在样品处理方面的协助;以及所有SEO/BirdLife志愿者在采样活动期间的协助。非常感谢贾尔斯·米勒在MB-R在NHM期间的支持。巴伦西亚大学SCSIE显微镜人员在扫描电镜成像方面的帮助得到了认可。我们非常感谢匿名审稿人对之前版本的手稿提出的有益建议。本文是I + D + I项目PID2020-112959GB-I00的一部分,由MCIN/AEI/10.13039/501100011033资助。这项研究也得到了Consellería de Innovación, Universidades, Ciencia y Sociedad Digital(瓦伦西亚社区政府)通过EXOCRUST项目(代码AICO/2020/182)的支持。SEO/BirdLife对稻田中大型无脊椎动物群落的研究由紧急情况局Desarrollo Rural农业协会Climática y Transición Ecológica(瓦伦西亚社区政府)资助。Bisquert-Ribes是由Ministerio de Educación y Formación professional(西班牙政府)设立的博士前奖学金(FPU19/02264)的获得者。披露声明作者未报告潜在的利益冲突。数据可用性声明如有合理要求,可向作者提供数据。
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引用次数: 0
A national scale trophic state analysis to prioritize lakes for restoration in Aotearoa New Zealand 新西兰奥特罗阿地区湖泊优先恢复的全国尺度营养状态分析
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-09-11 DOI: 10.1080/20442041.2023.2257457
Susanna A Wood, Marcus J Vandergoes, Javier Atalah, Jamie D Howarth, Sean Waters, Georgia Thomson-Laing, Lucy Thompson, David Hamilton, Xavier Pochon, David Kelly, Chris Moy, Andrew Rees, Marc Schallenerg, Rose Gregerson, Adelaine Moody, Lizette Reyes, Claire Shepherd, Henry Gard, Lisa Floerl, John K Pearman
Pressures on lakes in Aotearoa New Zealand are increasing due to elevated catchment nutrient loads, establishment of non-native species, and climate change. Current government legislation requires that pressures are managed to avoid eutrophication and degradation of lake health. This approach requires information on the state of lakes at regional and national scales, which is challenging as less than 5% are currently monitored. In this study, we (1) modelled lake trophic status at a national scale using a highly representative dataset and lake characteristics, land-use, and environmental parameters as predictor variables, and (2) identified lakes that should be prioritized for protection to prevent further degradation. Six statistical models were evaluated, with extreme boosting producing the highest predictive power and lowest error. This model indicated that for the 3,738 lakes in the dataset, 44% were eutrophic or of higher trophic state, 22% mesotrophic, and 34% oligotrophic or of lower trophic state. This data provides a benchmark to guide management and supports the call for more resourcing to restore lakes in Aotearoa New Zealand. To identify lakes to prioritise for protection we focused on the approximately 800 mesotrophic lakes. We used (1) the portion of lake catchment not within conservation estate, and (2) road access as proxies for the likelihood of land-use intensification, and the introduction of non-native species, respectively. Over 170 lakes with limited catchment protection and easy human access were identified. Immediate attention should be given to protecting these waterbodies to prevent the need for costly and resource-intensive remediation in the future.
由于集水区营养负荷升高、非本地物种的建立和气候变化,新西兰奥特罗阿湖的压力正在增加。目前的政府立法要求管理压力,以避免富营养化和湖泊健康退化。这种方法需要区域和全国范围内湖泊状况的信息,这是具有挑战性的,因为目前只有不到5%的湖泊受到监测。在本研究中,我们(1)利用极具代表性的数据集和湖泊特征、土地利用和环境参数作为预测变量,在全国范围内模拟了湖泊的营养状况;(2)确定了应优先保护的湖泊,以防止进一步退化。对六种统计模型进行了评估,其中极值增强产生了最高的预测能力和最低的误差。该模型表明,在数据集中的3738个湖泊中,44%为富营养或高营养状态,22%为中营养状态,34%为贫营养或低营养状态。这些数据为指导管理提供了基准,并支持为恢复新西兰奥特罗阿的湖泊提供更多资源的呼吁。为了确定需要优先保护的湖泊,我们重点关注了大约800个中营养型湖泊。我们分别用(1)保护区以外的湖泊集水区和(2)道路通道作为土地利用集约化可能性和外来物种引入可能性的替代指标。确定了170多个集水区保护有限、人类容易进入的湖泊。应立即注意保护这些水体,以防止将来需要昂贵和资源密集的补救措施。
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引用次数: 0
Temporal and lake-specific variations in oxygen and hydrogen stable isotopes in a boreal lake-chain during two hydrologically differing years 在两个水文不同年份,北方湖泊链中氧和氢稳定同位素的时间和湖泊特异性变化
IF 3.1 3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-09-07 DOI: 10.1080/20442041.2023.2255118
P. Kankaala, E. Sonninen, Eeva Einola, J. Huotari, Timo Huttula, Suvi Mäkelä, A. Ojala, M. Rask, T. Tulonen, L. Arvola
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引用次数: 0
Synergistic impacts of climate change and human activities on spatiotemporal organic nitrogen burial variation in a plateau lake in southwest China 气候变化和人类活动对西南高原湖泊有机氮埋藏时空变化的协同影响
3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-08-10 DOI: 10.1080/20442041.2023.2208515
Tao Huang, Yang Luo, Quanliang Jiang, Zhigang Zhang, Hao Yang, Changchun Huang
ABSTRACTThe concentration and sources of organic nitrogen (ON) in lake sediments affect lake nitrogen cycles. However, the factors influencing ON accumulation rate (ONAR) are unclear. We collected 3 sediment cores from northern, eastern, and southern Dianchi Lake (DC-N, DC-E, and DC-S, respectively) in July 2014, to study the effects of autochthonous and allochthonous sources of ON. The ON and ONAR increased 2.4–5.1 and 2.6–4.8 times, respectively, from 1900 to 2000, especially since the 1980s, when algal blooms have occurred more frequently. The ON decreased in the order DC-S > DC-N > DC-E, whereas the ONAR decreased in the order DC-N > DC-S > DC-E, suggesting that ONAR was influenced by ON content as well as the depositional environment. The total concentrations of n-alkanes (n-C12 to n-C34) ranged from 4719 to 61 960 ng g−1 in the 3 sediment cores, with proportions varying with vertical depth. The sources of ON were mainly allochthonous (soil erosion and terrestrial plants) and autochthonous (algal and aquatic plants) in DC-S and DC-N, respectively, and primarily mixed planktonic and terrestrial in DC-E. The stochastic impacts by regression on population, affluence, and technology (STIRPAT) model revealed that a 1% increase in air temperature and nitrogen fertilizer corresponded to an increase in ONAR by 23–33% and 20–79% in the Dianchi Lake basin, especially in DC-S and DC-E. However, a 1% increase in urban land area reduced ONAR by 2–11%, especially in DC-N. Our study suggests that the spatial and temporal ONAR in Dianchi Lake may increase in response to a warmer and wetter climate combined with increasing chemical nitrogen fertilizer application.KEYWORDS: algal bloomsDianchi Lakehuman activitiesn-alkanesorganic nitrogenSTIRPAT model AcknowledgementsWe thank Editage (www.editage.cn) for English language editing. We also sincerely thank the 2 anonymous reviewers and Associate Editor Dr. Grant Douglas for their constructive comments to improve the readability and scientific presentation of this manuscript.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was funded by the National Natural Science Foundation of China (Grant No. 41971009, 41503054, 41971286 and 41773097), and the Youth Top Talent funded by Nanjing Normal University.
摘要湖泊沉积物中有机氮(ON)的浓度和来源影响湖泊氮循环。然而,影响ON积累速率的因素尚不清楚。2014年7月,我们采集了滇池北部、东部和南部3个沉积物岩心(分别为DC-N、DC-E和DC-S),研究了本地源和外来源对滇池氮的影响。从1900年到2000年,ON和ONAR分别增加了2.4-5.1倍和2.6-4.8倍,特别是自20世纪80年代以来,藻华发生频率更高。ON在DC-S > DC-N > DC-E顺序递减,ONAR在DC-N > DC-S > DC-E顺序递减,说明ONAR受ON含量和沉积环境的影响。3个岩心中正构烷烃(n-C12 ~ n-C34)的总浓度在4719 ~ 61 960 ng g−1之间,其比例随垂直深度的变化而变化。DC-S区和DC-N区氮源主要为外源(土壤侵蚀和陆生植物)和原生(藻类和水生植物),DC-E区氮源主要为浮游和陆生混合。STIRPAT随机影响模型表明,气温和氮肥每增加1%,滇池流域ONAR分别增加23-33%和20-79%,特别是DC-S和DC-E。然而,城市土地面积每增加1%,ONAR就会减少2-11%,特别是在DC-N。研究表明,随着气候变暖、变湿,加之化学氮肥施用量的增加,滇池ONAR的时空变化可能会增加。关键词:藻华滇池人类活动烷烃有机氮stirpat模型致谢感谢Editage (www.editage.cn)英文编辑。我们也衷心感谢两位匿名审稿人和副主编Grant Douglas博士的建设性意见,他们提高了本文的可读性和科学性。披露声明作者未报告潜在的利益冲突。基金资助:国家自然科学基金项目(批准号:41971009、41503054、41971286、41773097)和南京师范大学青年拔尖人才资助。
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引用次数: 0
Habitat type strongly influences the structural benthic invertebrate community composition in a landscape characterized by ubiquitous, long-term occurrences of agricultural stress 在一个普遍存在、长期发生农业压力的景观中,生境类型强烈地影响着底栖无脊椎动物群落的结构组成
IF 3.1 3区 环境科学与生态学 Q1 Agricultural and Biological Sciences Pub Date : 2023-08-02 DOI: 10.1080/20442041.2023.2242084
Fee-Nanett Trau, Kathrin Fisch, S. Lorenz
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引用次数: 0
期刊
Inland Waters
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