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Forest management cessation and biodiversity: a synthesis of a nationwide French project

Gosselin, Frédéric and Paillet, Yoann and Gosselin, Marion and Larrieu, Laurent and Marell, Anders and Boulanger, Vincent and Debaive, Nicolas and Archaux, Frédéric and Bouget, Christophe and Gilg, Olivier and Drapier, Nicolas and Dauffy-Richard, Emmanuelle Forest management cessation and biodiversity: a synthesis of a nationwide French project. (2017) In: IUFRO 2017 - 125th Anniversary Congress – Interconnecting Forests, Science and People, 18 September 2017 - 22 September 2017 (Fribourg, Germany). (Unpublished)

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Official URL: http://iufro2017.com/wp-content/uploads/2017/11/IUFRO17_Abstract_Book.pdf


Extending the network of strict forest reserves is one of the conservation measures promoted by the French National Strategy for Biodiversity improvement. According to the scientific literature, strict forest reserves may help preserving a part of the biodiversity that is threatened by forestry. However, this strategy is based on poor knowledge in the temperate context and available studies may suffer from methodological shortcomings. The national-scale project named "Forest management, Naturalness and Biodiversity" aims at quantifying the effects on forest structure and biodiversity of management abandonment in strict reserves. Based on a meta-analysis of worldwide literature and original data from 213 study plots set up in 15 forest sites throughout France - around half of the plots in forests left unmanaged for from 8 to 148 years (mean: 46 years)- , we analyzed the response of 7 taxonomic groups to management abandonment. The meta-analysis demonstrates that forestry affects total richness of saproxylic taxa worldwide, which is verified in our national dataset. However, management abandonment per se is not always the best explanation of the differences between managed and unmanaged forests, but other variables, notably linked to deadwood, better explain the observed patterns for saproxylic groups. For other taxa, the response is weaker and depends more on structural features than on management abandonment. In terms of policy, our project has allowed methodological advances thanks to the development of inventory and remote sensing protocols, as well as statistical methods. The dataset we have gathered is also a first comparison of structure and biodiversity between strict forest reserves and managed forests for France. This network may therefore constitute a first basis for long term biodiversity monitoring in French forests.

Item Type:Conference or Workshop Item (Other)
ProdINRA Id:458510
Audience (conference):International conference without published proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
French research institutions > Institut national de Recherche en Sciences et Technologies pour l'Environnement et l'Agriculture - IRSTEA (FRANCE)
French research institutions > Office National des Forêts - ONF (FRANCE)
Other partners > Réserves naturelles de FRANCE - RNF (FRANCE)
Laboratory name:
Deposited On:03 May 2019 08:13

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