[article]
| Titre : |
Are local plants the best for ecosystem restoration? It depends on how you analyze the data |
| Type de document : |
Imprimé |
| Auteurs : |
Anna Bucharova ; Walter Durka ; Norbert Hölzel (1963-) ; Johannes Kollmann (1963-) ; Stefan Michalski ; Oliver Bossdorf |
| Année de publication : |
2017 |
| Article en page(s) : |
7 p. |
| Langues : |
Anglais (eng) |
| Catégories : |
[CBNPMP-Thématique] Revégétalisation
|
| Résumé : |
One of the key questions in ecosystem restoration is the choice of the seed materialfor restoring plant communities. The most common strategy is to use local seedsources, based on the argument that many plants are locally adapted and thus localseed sources should provide the best restoration success. However, the evidence forlocal adaptation is inconsistent, and some of these inconsistencies may be due to dif-ferent experimental approaches that have been used to test for local adaptation. Weillustrate how conclusions about local adaptation depend on the experimental designand in particular on the method of data analysis. We used data from a multispeciesreciprocal transplant experiment and analyzed them in three different ways: (1) com-paring local vs. foreign plants within species and sites, corresponding to tests of the“local is best” paradigm in ecological restoration, (2) comparing sympatric vs. allopatricpopulations across sites but within species, and (3) comparing sympatric and allopatricpopulations across multiple species. These approaches reflect different experimentaldesigns: While a local vs. foreign comparison can be done even in small experimentswith a single species and site, the other two approaches require a reciprocal transplantexperiment with one or multiple species, respectively. The three different analyses ledto contrasting results. While the local/foreign approach indicated lack of local adapta-tion or even maladaptation, the more general sympatric/allopatric approach rathersuggested local adaptation, and the most general cross-species sympatric/allopatrictest provided significant evidence for local adaptation. The analyses demonstrate howthe design of experiments and methods of data analysis impact conclusions on thepresence or absence of local adaptation. While small-scale, single-species experimentsmay be useful for identifying the appropriate seed material for a specific restorationproject, general patterns can only be detected in reciprocal transplant experimentswith multiple species and sites. |
| Lien pérenne : |
DOI : 10.1002/ece3.3585  |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=155158 |
in Ecology and evolution > 7 (24) (2017) . - 7 p.
Bucharova, Anna, Durka, Walter, Hölzel, Norbert (1963-), Kollmann, Johannes (1963-), Michalski, Stefan, Bossdorf, Oliver
2017
Are local plants the best for ecosystem restoration? It depends on how you analyze the data.
Ecology and evolution, 7(24): 7 p..
|
Are local plants the best for ecosystem restoration? It depends on how you analyze the data in Ecology and evolution, 7 (24) (2017)
