Strong shifts in plant diversity and vegetation composition in grassland shortly after climatic change
MetadataShow full item record
Questions: Is plant diversity in mesic grassland ecosystems vulnerable in the short-term to extreme climate change events? How rapidly can responses in vegetation composition occur in perennial grasslands? Are the expected compositional changes related to rare species losses or to shifts in the relative abundance of the dominants? Location: Subalpine mesic grasslands on limestone in the Pyrenees. Methods: Transplanting turves from the upland, with coldtemperate climate, to a lowland location, with continental Mediterranean climate. Results: Transplanting led to decreased biodiversity and strong shifts in vegetation composition. Results from both permutation tests and traditional multivariate analysis suggested different trajectories of vegetation depending on the initial species pool. Vegetation showed a tendency to converge in composition in the lowland over time, independently of initial differences. Estimated changes in relative biomass of the five most abundant species between the upland and the lowland ranged from –89 to +96 %. The ensemble of all other species was reduced by 80%. The most dominant species in the upland, Festuca nigrescens, reduced its abundance in the lowland, shifting from having mainly positive to mainly negative associations with other species. Conclusions: Mesic grassland ecosystems in the Pyrenees showed strong shifts in plant diversity and composition after a short period of warming and drought, as a consequence of acute vulnerability of some dominant grasses, losses of rare species, and aggregate and trigger effects of originally uncommon forb species.
Is part ofJournal of Vegetation Science, 2008, vol. 19, núm. 3, p. 299-306
European research projects
Showing items related by title, author, creator and subject.
Weed suppression greatly increased by plant diversity in intensively managed grasslands: A continental-scale experiment Connolly, John; Sebastià, Ma. T.; Kirwan, Laura; Finn, John A.; Llurba, Rosa; Suter, Matthias; Collins, Rosemary P.; Porqueddu, Claudio; Helgadóttir, Áslaug; Baadshaug, Ole H.; Bélanger, Gilles; Black, Alistair; Brophy, Caroline; Čop, Jure; Dalmannsdóttir, S.; Delgado, Ignacio; Elgersma, Anjo; Fothergill, Michael; Frankow-Lindberg, Bodil E.; Ghesquiere, An; Golinski, Piotr; Grieu, Philippe; Gustavsson, Anne-Maj; Höglind, Mats; Huguenin-Elie, Olivier; Jørgensen, Marit; Kadziuliene, Zydre; Lunnan, Tor; Nykanen-Kurki, P.; Ribas Artola, Àngela; Taube, Friedhelm; Thumm, Ulrich; De Vliegher, A.; Lüscher, Andreas (John Wiley & Sons, 2017-09-27)1. Grassland diversity can support sustainable intensification of grassland production through increased yields, reduced inputs and limited weed invasion. We report the effects of diversity on weed suppression from 3 years ...
Biurrun, Idoia; Pielech, Remigiusz; Dembicz, Iwona; Gillet, François; Kozub, Ukasz; Marcenò, Corrado; Reitalu, Triin; Van Meerbeek, Koenraad; Guarino, Riccardo; Chytrý, Milan; Pakeman, Robin J; Preislerová, Zdenka; Axmanová, Irena; Burrascano, Sabina; Bartha, Sándor; Boch, Steffen; Bruun, Hans Henrik; Conradi, Timo; De Frenne, Pieter; Essl, Franz; Filibeck, Goffredo; Hájek, Michal; Jiménez‐Alfaro, Borja; Kuzemko, Anna; Molnár, Zsolt; Pärtel, Meelis; Pätsch, Ricarda; Prentice, Honor C; Rolecek, Jan; Sutcliffe, Laura M.E.; Terzi, Massimo; Winkler, Manuela; Wu, Jianshuang; Aćić, Svetlana; Acosta, Alicia T.R.; Afif, Elias; Sebastià, Ma. T.; Chocarro, Cristina (Wiley, 2021-06-22)Aims: Understanding fine-grain diversity patterns across large spatial extents is fundamental for macroecological research and biodiversity conservation. Using the GrassPlot database, we provide benchmarks of fine-grain ...
The Agrodiversity Experiment: three years of data from a multisite study in intensively managed grasslands Kirwan, Laura; Connolly, John; Brophy, Caroline; Baadshaug, Ole H.; Belanger, Gilles; Black, Alistair; Carnus, Timothee; Collins, Rosemary P.; Čop, Jure; Delgado, Ignacio; De Vliegher, A.; Elgersma, Anjo; Frankow-Lindberg, Bodil E.; Golinski, Piotr; Grieu, Philippe; Gustavsson, Anne-Maj; Helgadóttir, Áslaug; Höglind, Mats; Huguenin-Elie, Olivier; Jørgensen, Marit; Kadziuliene, Zydre; Lunnan, Tor; Lüscher, Andreas; Kurki, Päivi; Porqueddu, Claudio; Sebastià, Ma. T.; Thumm, Ulrich; Walmsley, David; Finn, John A. (2014-06-11)Intensively managed grasslands are globally prominent ecosystems. Weinvestigated whether experimental increases in plant diversity in intensively managedgrassland communities can increase their resource use efficiency.This ...