Plant species’ origin predicts dominance and response to nutrient enrichment and herbivores in global grasslands
Seabloom, Eric W., Borer, Elizabeth T., Buckley, Yvonne M., Cleland, Elsa E., Davies, Kendi F., Firn, Jennifer, Harpole, W. Stanley, Hautier, Yann, Lind, Eric M., MacDougall, Andrew S., Orrock, John L., Prober, Suzanne M., Adler, Peter B., Anderson, T. Michael, Bakker, Jonathan D., Biederman, Lori A., Blumenthal, Dana M., Brown, Cynthia S., Brudvig, Lars A., Cadotte, Marc, Chu, Chengjin, Cottingham, Kathryn L., Crawley, Michael J., Damschen, Ellen I., Dantonio, Carla M., DeCrappeo, Nicole M., Du, Guozhen, Fay, Philip A., Frater, Paul, Gruner, Daniel S., Hagenah, Nicole, Hector, Andy, Hillebrand, Helmut, Hofmockel, Kirsten S., Humphries, Hope C., Jin, Virginia L., Kay, Adam, Kirkman, Kevin P., Klein, Julia A., Knops, Johannes M. H., La Pierre, Kimberly J., Ladwig, Laura, Lambrinos, John G., Li, Qi, Li, Wei, Marushia, Robin, McCulley, Rebecca L., Melbourne, Brett A., Mitchell, Charles E., Moore, Joslin L., Morgan, John, Mortensen, Brent, O'Halloran, Lydia R., Pyke, David A., Risch, Anita C., Sankaran, Mahesh, Schuetz, Martin, Simonsen, Anna, Smith, Melinda D., Stevens, Carly J., Sullivan, Lauren, Wolkovich, Elizabeth, Wragg, Peter D., Wright, Justin, & Yang, Louie (2015) Plant species’ origin predicts dominance and response to nutrient enrichment and herbivores in global grasslands. Nature Communications, 6(7710).
Exotic species dominate many communities; however the functional significance of species’ biogeographic origin remains highly contentious. This debate is fuelled in part by the lack of globally replicated, systematic data assessing the relationship between species provenance, function and response to perturbations. We examined the abundance of native and exotic plant species at 64 grasslands in 13 countries, and at a subset of the sites we experimentally tested native and exotic species responses to two fundamental drivers of invasion, mineral nutrient supplies and vertebrate herbivory. Exotic species are six times more likely to dominate communities than native species. Furthermore, while experimental nutrient addition increases the cover and richness of exotic species, nutrients decrease native diversity and cover. Native and exotic species also differ in their response to vertebrate consumer exclusion. These results suggest that species origin has functional significance, and that eutrophication will lead to increased exotic dominance in grasslands.
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|Item Type:||Journal Article|
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Copyright Owner:||Copyright 2015 Macmillan Publishers Limited|
|Copyright Statement:||This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/|
|Deposited On:||20 Jul 2015 22:54|
|Last Modified:||22 Jul 2015 01:21|
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