Scientific Results

This catalogue is obtained by conducting a systematic literature review of scientific studies and reviews related to monitoring, forecasting, and simulating the inland water cycle. The analysis maps scientific expertise across research groups and classifies findings by the type of inland water studied, application focus, and geographical scope. A gap analysis will identify missing research areas and assess their relevance to policymaking.

ID â–Č Type Year Authors Title Venue/Journal DOI Research type Water System Technical Focus Abstract Link with Projects Link with Tools Related policies ID
publications-1051 PEER REVIEWED ARTICLE 2015 Gesa A. Weyhenmeyer , Sarian Kosten , Marcus B. Wallin , Lars J. Tranvik , Erik Jeppesen , Fabio Roland Significant fraction of CO2 emissions from boreal lakes derived from hydrologic inorganic carbon inputs 10.1038/ngeo2582 Simulation & Modeling Natural Water Bodies No abstract available 603378
publications-1052 PEER REVIEWED ARTICLE 2017 Bryan M. Spears , Martyn N. Futter , Erik Jeppesen , Brian J. Huser , Stephen Ives , Thomas A. Davidson , Rita Adrian , David G. Angeler , Sarah J. Bu Ecological resilience in lakes and the conjunction fallacy 10.1038/s41559-017-0333-1 Simulation & Modeling River Basins No abstract available 603378
publications-1053 PEER REVIEWED ARTICLE 2016 Lijuan Ren , Dan He , Zhen Chen , Erik Jeppesen , Torben L Lauridsen , Martin SĂžndergaard , Zhengwen Liu , Qinglong L Wu Warming and nutrient enrichment in combination increase stochasticity and beta diversity of bacterioplankton assemblages across freshwater mesocosms 10.1038/ismej.2016.159 Simulation & Modeling Natural Water Bodies Abstract The current climate warming and eutrophication are known to interactively threaten freshwater biodiversity; however, the interactive effects on lacustrine bacterioplankton diversity remain to be determined. Here, we analyzed the spring bacterioplankton community composition (BCC) in 24 outdoor, flow-through mesocosms (mimicking shallow lake environments) under 3 temperature scenarios and 2 nutrient regimes. Our results revealed that neither long-term warming (8.5 years) nor nutrient enrichment had significant effects on bacterioplankton alpha diversity, whereas long-term enhanced warming (elevated 50% above the IPCC A2 climate scenario) and nutrient enrichment in combination increased bacterioplankton beta diversity. We also found that BCC shifted significantly under enhanced warming and nutrient-enriched conditions towards decreased relative abundances of Actinobacteria, Bacteroidetes and Betaproteobacteria, whereas the percentages of Cyanobacteria, total rare phyla and unclassified phyla significantly increased. Null-model tests indicated that deterministic processes played a more important role than stochastic processes in determining BCC. However, the relative importance of stochasticity, primarily ecological drift, was enhanced and contributed to the increased beta diversity of BCC under enhanced warming and nutrient-enriched conditions. Overall, our study suggests that the synergetic effects of warming and nutrient enrichment may result in high variability in the composition of bacterioplankton communities in lacustrine water bodies. 603378
publications-1054 PEER REVIEWED ARTICLE 2015 Thomas A. Davidson , Joachim Audet , Jens-Christian Svenning , Torben L. Lauridsen , Martin Sþndergaard , Frank Landkildehus , Sþren E. Larsen , Eri Eutrophication effects on greenhouse gas fluxes from shallow-lake mesocosms override those of climate warming 10.1111/gcb.13062 Uncategorized Natural Water Bodies AbstractFresh waters make a disproportionately large contribution to greenhouse gas (GHG) emissions, with shallow lakes being particular hot spots. Given their global prevalence, how GHG fluxes from shallow lakes are altered by climate change may have profound implications for the global carbon cycle. Empirical evidence for the temperature dependence of the processes controlling GHG production in natural systems is largely based on the correlation between seasonal temperature variation and seasonal change in GHG fluxes. However, ecosystem‐level GHG fluxes could be influenced by factors, which while varying seasonally with temperature are actually either indirectly related (e.g. primary producer biomass) or largely unrelated to temperature, for instance nutrient loading. Here, we present results from the longest running shallow‐lake mesocosm experiment which demonstrate that nutrient concentrations override temperature as a control of both the total and individual GHG flux. Furthermore, testing for temperature treatment effects at low and high nutrient levels separately showed only one, rather weak, positive effect of temperature (CH4 flux at high nutrients). In contrast, at low nutrients, the CO2 efflux was lower in the elevated temperature treatments, with no significant effect on CH4 or N2O fluxes. Further analysis identified possible indirect effects of temperature treatment. For example, at low nutrient levels, increased macrophyte abundance was associated with significantly reduced fluxes of both CH4 and CO2 for both total annual flux and monthly observation data. As macrophyte abundance was positively related to temperature treatment, this suggests the possibility of indirect temperature effects, via macrophyte abundance, on CH4 and CO2 flux. These findings indicate that fluxes of GHGs from shallow lakes may be controlled more by factors indirectly related to temperature, in this case nutrient concentration and the abundance of primary producers. Thus, at ecosystem scale, response to climate change may not follow predictions based on the temperature dependence of metabolic processes. 603378
publications-1055 PEER REVIEWED ARTICLE 2015 Stephen M. Thomas , Siñn W. Griffiths , Steve J. Ormerod Beyond cool: adapting upland streams for climate change using riparian woodlands 10.1111/gcb.13103 Uncategorized Natural Water Bodies AbstractManaged adaptation could reduce the risks of climate change to the world's ecosystems, but there have been surprisingly few practical evaluations of the options available. For example, riparian woodland is advocated widely as shade to reduce warming in temperate streams, but few studies have considered collateral effects on species composition or ecosystem functions. Here, we use cross‐sectional analyses at two scales (region and within streams) to investigate whether four types of riparian management, including those proposed to reduce potential climate change impacts, might also affect the composition, functional character, dynamics and energetic resourcing of macroinvertebrates in upland Welsh streams (UK). Riparian land use across the region had only small effects on invertebrate taxonomic composition, while stable isotope data showed how energetic resources assimilated by macroinvertebrates in all functional guilds were split roughly 50:50 between terrestrial and aquatic origins irrespective of riparian management. Nevertheless, streams draining the most extensive deciduous woodland had the greatest stocks of coarse particulate matter (CPOM) and greater numbers of ‘shredding’ detritivores. Stream‐scale investigations showed that macroinvertebrate biomass in deciduous woodland streams was around twice that in moorland streams, and lowest of all in streams draining non‐native conifers. The unexpected absence of contrasting terrestrial signals in the isotopic data implies that factors other than local land use affect the relative incorporation of allochthonous subsidies into riverine food webs. Nevertheless, our results reveal how planting deciduous riparian trees along temperate headwaters as an adaptation to climate change can modify macroinvertebrate function, increase biomass and potentially enhance resilience by increasing basal resources where cover is extensive (>60 m riparian width). We advocate greater urgency in efforts to understand the ecosystem consequences of climate change adaptation to guide future actions. 603378
publications-1056 PEER REVIEWED ARTICLE 2016 Wilco C.E.P. Verberk , Isabelle Durance , Ian P. Vaughan , Steve J. Ormerod Field and laboratory studies reveal interacting effects of stream oxygenation and warming on aquatic ectotherms 10.1111/gcb.13240 Simulation & Modeling Groundwater AbstractAquatic ecological responses to climatic warming are complicated by interactions between thermal effects and other environmental stressors such as organic pollution and hypoxia. Laboratory experiments have demonstrated how oxygen limitation can set heat tolerance for some aquatic ectotherms, but only at unrealistic lethal temperatures and without field data to assess whether oxygen shortages might also underlie sublethal warming effects. Here, we test whether oxygen availability affects both lethal and nonlethal impacts of warming on two widespread Eurasian mayflies, Ephemera danica, MĂŒller 1764 and Serratella ignita (Poda 1761). Mayfly nymphs are often a dominant component of the invertebrate assemblage in streams, and play a vital role in aquatic and riparian food webs. In the laboratory, lethal impacts of warming were assessed under three oxygen conditions. In the field, effects of oxygen availability on nonlethal impacts of warming were assessed from mayfly occurrence in 42 293 UK stream samples where water temperature and biochemical oxygen demand were measured. Oxygen limitation affected both lethal and sublethal impacts of warming in each species. Hypoxia lowered lethal limits by 5.5 °C (±2.13) and 8.2 °C (±0.62) for E. danica and S. ignita respectively. Field data confirmed the importance of oxygen limitation in warmer waters; poor oxygenation drastically reduced site occupancy, and reductions were especially pronounced under warm water conditions. Consequently, poor oxygenation lowered optimal stream temperatures for both species. The broad concordance shown here between laboratory results and extensive field data suggests that oxygen limitation not only impairs survival at thermal extremes but also restricts species abundance in the field at temperatures well below upper lethal limits. Stream oxygenation could thus control the vulnerability of aquatic ectotherms to global warming. Improving water oxygenation and reducing pollution can provide key facets of climate change adaptation for running waters. 603378
publications-1057 PEER REVIEWED ARTICLE 2016 S.J. Taipale , K. Vuorio , U. Strandberg , K.K. Kahilainen , M. JĂ€rvinen , M. Hiltunen , E. Peltomaa , P. Kankaala Lake eutrophication and brownification downgrade availability and transfer of essential fatty acids for human consumption 10.1016/j.envint.2016.08.018 Simulation & Modeling Groundwater No abstract available 603378
publications-1058 PEER REVIEWED ARTICLE 2017 Yunlin Zhang , Erik Jeppesen , Xiaohan Liu , Boqiang Qin , Kun Shi , Yongqiang Zhou , Sidinei Magela Thomaz , Jianmin Deng Global loss of aquatic vegetation in lakes 10.1016/j.earscirev.2017.08.013 Simulation & Modeling River Basins No abstract available 603378
publications-1059 PEER REVIEWED ARTICLE 2015 Qing Yu , Hong-Zhu Wang , Yan Li , Jian-Chun Shao , Xiao-Min Liang , Erik Jeppesen , Hai-Jun Wang Effects of high nitrogen concentrations on the growth of submersed macrophytes at moderate phosphorus concentrations 10.1016/j.watres.2015.06.053 Uncategorized River Basins No abstract available 603378
publications-1060 PEER REVIEWED ARTICLE 2016 Kaire Toming , Tiit Kutser , Lea Tuvikene , Malle Viik , Tiina NÔges Dissolved organic carbon and its potential predictors in eutrophic lakes 10.1016/j.watres.2016.06.012 Uncategorized River Basins No abstract available 603378