La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Simple modifications of mowing regime promote butterflies in extensively managed meadows: Evidence from field-scale experiments
Auteurs :	Laura Bruppacher, Auteur ; Jerome Pellet, Auteur ; Raphaël Arlettaz, Auteur ; Jean-Yves Humbert, Auteur
Type de document :	Article
Dans :	Biological Conservation (196 APR 2016)
Article en page(s) :	196-202
Langues:	Anglais
Résumé :	Restoring biodiversity-rich grasslands within cultivated matrices represents a real conservation challenge. One set of options consists in adopting less disruptive mowing regimes, as mowing impacts on invertebrates can be considerable. We experimentally tested the effect on butterfly populations of a spatio-temporal modification of mowing regimes within extensively managed meadows. The control regime (C) followed the standard Swiss agri-environment schemes (AES) regulation: no cutting before 15 June and no fertilisation. The second regime consisted of delaying (D) the first possible cut by one month (to 15 July). The third regime consisted in maintaining a 10-20% uncut grass refuge (R) during mowing operations. This experiment was replicated at

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