Increasing effects of chronic nutrient enrichment on plant diversity loss and ecosystem productivity over time

dc.contributor.authorSeabloom, E.W.
dc.contributor.authorAdler, P.B.
dc.contributor.authorAlberti, J.
dc.contributor.authorBiederman, L.
dc.contributor.authorBuckley, Y.M.
dc.contributor.authorCadotte, M.W.
dc.contributor.authorCollins, S.L.
dc.contributor.authorDee, L.
dc.contributor.authorFay, P.A.
dc.contributor.authorFirn, J.
dc.contributor.authorHagenah, Nicole
dc.contributor.authorHarpole, W.S.
dc.contributor.authorHautier, Y.
dc.contributor.authorHector, A.
dc.contributor.authorHobbie, S.E.
dc.contributor.authorIsbell, F.
dc.contributor.authorKnops, Johannes M.H.
dc.contributor.authorKomatsu, K.J.
dc.contributor.authorLaungani, R.
dc.contributor.authorMacDougall, Andrew S.
dc.contributor.authorMcCulley, R.L.
dc.contributor.authorMoore, J.L.
dc.contributor.authorMorgan, J.W.
dc.contributor.authorOhlert, T.
dc.contributor.authorProber, S.M.
dc.contributor.authorRisch, A.C.
dc.contributor.authorSchuetz, M.
dc.contributor.authorStevens, C.J.
dc.contributor.authorBorer, Elizabeth T.
dc.date.accessioned2021-08-13T10:34:15Z
dc.date.available2021-08-13T10:34:15Z
dc.date.issued2021-02
dc.descriptionDATA AVAILABILITY: Data are publicly available on the Environmental Data Initiative platform (Seabloom et al. 2020 https://doi.org/10.6073/pasta/d78e6e48df246a03129c85a6c1da00d6).en_ZA
dc.description.abstractHuman activities are enriching many of Earth’s ecosystems with biologically limiting mineral nutrients such as nitrogen (N) and phosphorus (P). In grasslands, this enrichment generally reduces plant diversity and increases productivity. The widely demonstrated positive effect of diversity on productivity suggests a potential negative feedback, whereby nutrient-induced declines in diversity reduce the initial gains in productivity arising from nutrient enrichment. In addition, plant productivity and diversity can be inhibited by accumulations of dead biomass, which may be altered by nutrient enrichment. Over longer time frames, nutrient addition may increase soil fertility by increasing soil organic matter and nutrient pools. We examined the effects of 5–11 yr of nutrient addition at 47 grasslands in 12 countries. Nutrient enrichment increased aboveground live biomass and reduced plant diversity at nearly all sites, and these effects became stronger over time. We did not find evidence that nutrient-induced losses of diversity reduced the positive effects of nutrients on biomass; however, nutrient effects on live biomass increased more slowly at sites where litter was also increasing, regardless of plant diversity. This work suggests that short-term experiments may underestimate the long term nutrient enrichment effects on global grassland ecosystems.en_ZA
dc.description.departmentMammal Research Instituteen_ZA
dc.description.departmentZoology and Entomologyen_ZA
dc.description.librarianpm2021en_ZA
dc.description.sponsorshipNational Science Foundation Research Coordination Network programs and University of Minnesota’s Institute on the Environment (DG-0001-13).en_ZA
dc.description.urihttp://www.esajournals.org/loi/ecolen_ZA
dc.identifier.citationSeabloom, E.W., P.B. Adler, J. Alberti, L. Biederman, Y.M. Buckley, M.W. Cadotte, S.L. Collins, L. Dee, P.A. Fay, J. Firn, N. Hagenah, W.S. Harpole, Y. Hautier, A. Hector, S.E. Hobbie, F. Isbell, J.M.H. Knops, K.J. Komatsu, R. Laungani, A. MacDougall, R.L. McCulley, J.L. Moore, J.W. Morgan, T. Ohlert, S.M. Prober, A.C. Risch, M. Schuetz, C.J. Stevens, and E.T. Borer. Increasing effects of chronic nutrient enrichment on plant diversity loss and ecosystem productivity over time. Ecology. 2021 Feb;102(2):e03218. doi: 10.1002/ecy.3218.en_ZA
dc.identifier.issn0012-9658 (print)
dc.identifier.issn1939-9170 (online)
dc.identifier.other10.1002/ecy.3218
dc.identifier.urihttp://hdl.handle.net/2263/81275
dc.language.isoenen_ZA
dc.publisherEcological Society of Americaen_ZA
dc.rights© 2020 by the Ecological Society of Americaen_ZA
dc.subjectBiodiversityen_ZA
dc.subjectCommunity ecologyen_ZA
dc.subjectEcosystem ecologyen_ZA
dc.subjectGrasslandsen_ZA
dc.subjectNutNeten_ZA
dc.subjectNutrient networken_ZA
dc.titleIncreasing effects of chronic nutrient enrichment on plant diversity loss and ecosystem productivity over timeen_ZA
dc.typeArticleen_ZA

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