| publications-1061 |
PEER REVIEWED ARTICLE |
2016 |
Yongqiang Zhou , Yunlin Zhang , Erik Jeppesen , Kathleen R. Murphy , Kun Shi , Mingliang Liu , Xiaohan Liu , Guangwei Zhu |
Inflow rate-driven changes in the composition and dynamics of chromophoric dissolved organic matter in a large drinking water lake |
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10.1016/j.watres.2016.05.021 |
Uncategorized |
Natural Water Bodies |
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No abstract available |
603378 |
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| publications-1062 |
PEER REVIEWED ARTICLE |
2017 |
Qiuqi Lin , Lei Xu , Juzhi Hou , Zhengwen Liu , Erik Jeppesen , Bo-Ping Han |
Responses of trophic structure and zooplankton community to salinity and temperature in Tibetan lakes: Implication for the effect of climate warming |
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10.1016/j.watres.2017.07.078 |
Uncategorized |
Natural Water Bodies |
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No abstract available |
603378 |
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| publications-1063 |
PEER REVIEWED ARTICLE |
2017 |
Yongqiang Zhou , Jianrong Ma , Yunlin Zhang , Boqiang Qin , Erik Jeppesen , Kun Shi , Justin D. Brookes , Robert G.M. Spencer , Guangwei Zhu , Guang G |
Improving water quality in China: Environmental investment pays dividends |
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10.1016/j.watres.2017.04.035 |
Uncategorized |
River Basins |
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No abstract available |
603378 |
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| publications-1064 |
PEER REVIEWED ARTICLE |
2018 |
Christian K. Feld , Maria do Rosårio Pereira Fernandes , Maria Teresa Ferreira , Daniel Hering , Steve J. Ormerod , Markus Venohr , Cayetano Gutiérr |
Evaluating riparian solutions to multiple stressor problems in river ecosystems â A conceptual study |
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10.1016/j.watres.2018.04.014 |
Uncategorized |
Uncategorized |
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No abstract available |
603378 |
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| publications-1065 |
PEER REVIEWED ARTICLE |
2016 |
Boris JovanoviÄ , Gizem Bezirci , Ali Serhan ĂaÄan , Jan Coppens , Eti E. Levi , Zehra Oluz , EylĂŒl Tuncel , Hatice Duran , Meryem BeklioÄlu |
Food web effects of titanium dioxide nanoparticles in an outdoor freshwater mesocosm experiment |
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10.3109/17435390.2016.1140242 |
Uncategorized |
River Basins |
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No abstract available |
603378 |
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| publications-1066 |
PEER REVIEWED ARTICLE |
2015 |
Yongqiang Zhou , Erik Jeppesen , Yunlin Zhang , Cheng Niu , Kun Shi , Xiaohan Liu , Guangwei Zhu , Boqiang Qin |
Chromophoric dissolved organic matter of black waters in a highly eutrophic Chinese lake: Freshly produced from algal scums? |
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10.1016/j.jhazmat.2015.06.024 |
Simulation & Modeling |
River Basins |
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No abstract available |
603378 |
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| publications-1067 |
PEER REVIEWED ARTICLE |
2016 |
Annette Baattrup-Pedersen , Emma Göthe , Tenna Riis , Dagmar K. Andersen , SÞren E. Larsen |
A new paradigm for biomonitoring: an example building on the Danish Stream Plant Index |
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10.1111/2041-210x.12676 |
Simulation & Modeling |
Uncategorized |
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Summary Despite intensive efforts for more than a decade to develop Water Frameworkâcompliant assessment systems, shortcomings continue to appear. In particular, the lack of reference conditions has hindered the development of assessment systems capturing the heart of the Water Framework Directive (WFD) â that ecological status should be set as the deviation from the natural, undisturbed condition. Recently, the Danish Stream Plant Index (DSPI) was developed. This system contrasts existing systems in that it builds on an expert interpretation of the normative definitions of ecological status classes in the WFD without taking pressureâimpact relationships into account. Here, we substantiate the approach taken in the development of DSPI and examine whether the DSPI class decreases with increasing level of anthropogenic stress and, additionally, whether the deviation from the natural undisturbed condition increases with decreasing DSPI class sensu WFD using trait composition of plant assemblages from Danish streams around year 1900 as a reference. We furthermore examine the trait composition of the vegetation in sites classified into different DSPI status classes to explore whether predictable patterns exist that can be used to identify the ultimate cause(s) of failure to meet ecological goals and help guide the selection of appropriate mitigation measures. We observed that DSPI declined with several parameters indicative of environmental stress in Danish streams and, furthermore, that the deviation from the natural undisturbed condition regarding the trait composition of plant communities declined with increasing DSPI, implying that the trait composition of plant communities in the high DSPI status class was most similar to those occurring in Danish streams around year 1900. We also found that trait characteristics capable of disentangling important stressors in Danish streams varied consistently among sites classified into different DSPI classes. Based on our findings, we call for new thinking. We suggest that more effort should be directed at describing reference conditions and interpreting the normative definitions of good, moderate, poor and bad instead of focusing solely on developing assessment systems using pressureâimpact frameworks. We find this particularly important with respect to streams as these are seldom impacted by only a single stressor. |
603378 |
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| publications-1068 |
PEER REVIEWED ARTICLE |
2017 |
José Antonio Carbonell , Josefa Velasco , Andrés Millån , Andy J. Green , Cristina Coccia , Simone Guareschi , Cayetano Gutiérrez-Cånovas |
Biological invasion modifies the co-occurrence patterns of insects along a stress gradient |
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10.1111/1365-2435.12884 |
Uncategorized |
Natural Water Bodies |
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Summary Biological invasions have become one of the most important drivers of biodiversity loss and ecosystem change worldâwide. However, it is still unclear how invasions may interact with local abiotic stressors, which are expected to increase as global change intensifies. Furthermore, we know little about the response to biological invasions of insects, despite their disproportionate contribution to global animal biodiversity. The aim of the present work is to investigate the impact of an invasive aquatic insect on the coâoccurrence patterns of native species of insects along a salinity gradient, and determine which assembly rules are driving these patterns. First, we characterised the habitat specialisation and functional niches of each species from physiological and biological traits, respectively, and their degree of overlap. Second, we used field data to compare the coâoccurrence patterns of native and invasive species in invaded and nonâinvaded areas of southern Iberia and northern Morocco. Finally, we tested if habitat filtering or niche differentiation assembly rules mediate their coâoccurrence. In nonâinvaded areas, habitat filtering drives habitat segregation of species along the salinity gradient, with a lower contribution of niche differentiation. The presence of the invasive insect modifies the distribution and coâoccurrence patterns of native species. In invaded areas, niche differentiation seems to be the main mechanism to avoid competition among the invasive and native species, enabling coexistence and resource partitioning. The combined study of functional niche similarity and abiotic stressor tolerance of invasive and native species can improve our understanding of the effects of invasive species along abiotic stress gradients. This approach may increase our capacity to predict the outcomes of biological invasion in a global change context. A lay summary is available for this article. |
603378 |
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| publications-1069 |
PEER REVIEWED ARTICLE |
2016 |
Daniel Bruno , Cayetano Gutiérrez-Cånovas , David Sånchez-Fernåndez , Josefa Velasco , Christer Nilsson |
Impacts of environmental filters on functional redundancy in riparian vegetation |
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10.1111/1365-2664.12619 |
Uncategorized |
Natural Water Bodies |
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SummaryUnderstanding and predicting ecosystem responses to multiple environmental pressures is a longâstanding interest in ecology and environmental management. However, few studies have examined how the functional features of freshwater biological communities vary along multiple gradients of environmental stress. Furthermore, modelling these functional features for a whole river network constitutes a strong potential basis to improve ecosystem management.We explored how functional redundancy of biological communities (FR, a functional feature related to the stability, resistance and resilience of ecosystems) responds to single and multiple environmental filters. We compared these responses with those of functional richness, evenness and divergence. We used riparian vegetation of a Mediterranean basin, and three of the main environmental filters affecting freshwater communities in such regions, that is drought, flow regulation and agricultural intensity, thus considering the potential effect of natural environmental variability. We also assessed the predictability ofFRand estimated it for the entire river network.We found that all functional measures decreased with increasing environmental filter intensity. However,FRwas more sensitive to single and multiple environmental filters compared to other functional measures. The bestâfitting model explained 59% of theFRvariability and included agriculture, drought and flow regulation and the pairwise interactions of agriculture with drought and flow regulation. The parameters of theFRmodels differed from null model expectations reflecting a nonârandom decline along stress gradients.Synthesis and applications. We found nonârandom detrimental effects along environmental filters' gradients for riparian functional redundancy (the most sensitive functional index), meaning that increased stress could jeopardize stability, resistance and resilience of these systems. In general, agriculture caused the greatest impact on functional redundancy and functional diversity measures, being the most important stressor for riparian functionality in the study area. Temporary streams flowing through an agricultural, regulated basin had reduced values of functional redundancy, whereas the freeâflowing mediumâsized, perennial water courses flowing through unaltered subâbasins displayed higher values of functional redundancy and potentially greater stability against human impacts. All these findings along with the predicted basinâwide variation of functional redundancy can assist environmental managers in improving monitoring and ecosystem management. |
603378 |
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| publications-1070 |
PEER REVIEWED ARTICLE |
2017 |
Yongqiang Zhou , Xiaolong Yao , Yibo Zhang , Kun Shi , Yunlin Zhang , Erik Jeppesen , Guang Gao , Guangwei Zhu , Boqiang Qin |
Potential rainfall-intensity and pH-driven shifts in the apparent fluorescent composition of dissolved organic matter in rainwater |
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10.1016/j.envpol.2017.02.048 |
Uncategorized |
Hydropower Dams & reservoirs |
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No abstract available |
603378 |
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