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Drivers of temporal changes in temperate forest plant diversity vary across spatial scales

  • Global biodiversity is affected by numerous environmental drivers. Yet, the extent to which global environmental changes contribute to changes in local diversity is poorly understood. We investigated biodiversity changes in a meta-analysis of 39 resurvey studies in European temperate forests (3988 vegetation records in total, 17-75years between the two surveys) by assessing the importance of (i) coarse-resolution (i.e., among sites) vs. fine-resolution (i.e., within sites) environmental differences and (ii) changing environmental conditions between surveys. Our results clarify the mechanisms underlying the direction and magnitude of local-scale biodiversity changes. While not detecting any net local diversity loss, we observed considerable among-site variation, partly explained by temporal changes in light availability (a local driver) and density of large herbivores (a regional driver). Furthermore, strong evidence was found that presurvey levels of nitrogen deposition determined subsequent diversity changes. We conclude that modelsGlobal biodiversity is affected by numerous environmental drivers. Yet, the extent to which global environmental changes contribute to changes in local diversity is poorly understood. We investigated biodiversity changes in a meta-analysis of 39 resurvey studies in European temperate forests (3988 vegetation records in total, 17-75years between the two surveys) by assessing the importance of (i) coarse-resolution (i.e., among sites) vs. fine-resolution (i.e., within sites) environmental differences and (ii) changing environmental conditions between surveys. Our results clarify the mechanisms underlying the direction and magnitude of local-scale biodiversity changes. While not detecting any net local diversity loss, we observed considerable among-site variation, partly explained by temporal changes in light availability (a local driver) and density of large herbivores (a regional driver). Furthermore, strong evidence was found that presurvey levels of nitrogen deposition determined subsequent diversity changes. We conclude that models forecasting future biodiversity changes should consider coarse-resolution environmental changes, account for differences in baseline environmental conditions and for local changes in fine-resolution environmental conditions.show moreshow less

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Author:Markus Bernhardt-Römermann, Lander Baeten, Dylan Craven, Pieter De Frenne, Radim Hedl, Jonathan Lenoir, Didier Bert, Jorg Brunet, Marketa Chudomelova, Guillaume Decocq, Hartmut Dierschke, Thomas Dirnboeck, Inken Dörfler, Thilo Heinken, Martin Hermy, Patrick Hommel, Bogdan Jaroszewicz, Andrzej Keczynski, Daniel L. Kelly, Keith J. Kirby, Martin Kopecky, Martin Macek, Frantisek Malis, Michael Mirtl, Fraser J. G. Mitchell, Tobias Naaf, Miles Newman, George Peterken, Petr Petrik, Wolfgang Schmidt, Tibor Standovar, Zoltan Toth, Hans Van Calster, Gorik Verstraeten, Jozef Vladovic, Ondrej Vild, Monika Wulf, Kris Verheyen
DOI:https://doi.org/10.1111/gcb.12993
ISSN:1354-1013 (print)
ISSN:1365-2486 (online)
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=26212787
Parent Title (English):Global change biology
Publisher:Wiley-Blackwell
Place of publication:Hoboken
Document Type:Article
Language:English
Year of first Publication:2015
Year of Completion:2015
Release Date:2017/03/27
Tag:Shannon diversity; atmospheric nitrogen deposition; evenness; forest management; forestREplot; game browsing; spatiotemporal resurvey data; species richness
Volume:21
Issue:10
Pagenumber:12
First Page:3726
Last Page:3737
Funder:Program - ERC Grant [278065]; Ministry of Education of the Czech Republic [CZ.1.07/2.3.00/20.0267]; ERC Consolidator Grant [614839 - PASTFORWARD]; National Parks & Wildlife Service of Government of Ireland; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig - German Science Foundation [FZT 118]; [RVO 67985939]
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie
Peer Review:Referiert