02638nas a2200493 4500008004100000245011700041210006900158300001500227490000700242520117100249100002101420700001601441700002101457700001901478700002301497700001401520700001601534700002501550700001701575700002001592700001801612700002201630700002401652700002001676700001901696700002001715700001801735700002001753700002701773700002601800700002301826700002201849700001701871700002101888700002801909700002101937700002001958700001601978700002301994700001902017700002302036700002302059856006202082 2018 eng d00aSpatial heterogeneity in species composition constrains plant community responses to herbivory and fertilisation0 aSpatial heterogeneity in species composition constrains plant co a1364 -13710 v213 a
Environmental change can result in substantial shifts in community composition. The associated immigration and extinction events are likely constrained by the spatial distribution of species. Still, studies on environmental change typically quantify biotic responses at single spatial (time series within a single plot) or temporal (spatial beta diversity at single time points) scales, ignoring their potential interdependence. Here, we use data from a global network of grassland experiments to determine how turnover responses to two major forms of environmental change – fertilisation and herbivore loss – are affected by species pool size and spatial compositional heterogeneity. Fertilisation led to higher rates of local extinction, whereas turnover in herbivore exclusion plots was driven by species replacement. Overall, sites with more spatially heterogeneous composition showed significantly higher rates of annual turnover, independent of species pool size and treatment. Taking into account spatial biodiversity aspects will therefore improve our understanding of consequences of global and anthropogenic change on community dynamics.
1 aHodapp, Dorothee1 aBorer, E.T.1 aHarpole, Stanley1 aLind, Eric, M.1 aSeabloom, Eric, W.1 aAdler, P.1 aAlberti, J.1 aArnillas, Carlos, A.1 aBakker, J.D.1 aBiederman, L.A.1 aCadotte, Marc1 aCleland, Elsa, E.1 aCollins, Scott., L.1 aFay, Philip, A.1 aFirn, Jennifer1 aHagenah, Nicole1 aHautier, Yann1 aIribarne, Oscar1 aKnops, Johannes, M. H.1 aMcCulley, Rebecca, L.1 aMacDougall, Andrew1 aMoore, Joslin, L.1 aMorgan, J.W.1 aMortensen, Brent1 aLa Pierre, Kimberly, J.1 aRisch, Anita, C.1 aSchütz, Martin1 aPeri, Pablo1 aStevens, Carly, J.1 aWright, Justin1 aHillebrand, Helmut1 aGurevitch, Jessica uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111/ele.13102