First results of radio-tracking of Osmoderma eremita (Coleoptera : Cetoniidae) in French chestnut orchards - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Revue d'Écologie Année : 2008

First results of radio-tracking of Osmoderma eremita (Coleoptera : Cetoniidae) in French chestnut orchards

Résumé

The Hermit beetle, Osmoderma eremita (Coleoptera: Cetoniidae) is an emblematic and endangered species of the saproxylic communities. A monitoring programme was planned for ten years in France (Sarthe department) to gain a best understanding of the local conservation stakes of this protected species. The monitoring includes capture – mark – recapture and radio-tracking methods to analyse the occupancy rate of hollow trees, the size of the populations and the dispersal behaviour of the adults. We present in particular the data collected during the fi rst season of radio-tracking of this programme. No dispersal was observed with capture – mark – recapture but this method brought out the adults emerged in small numbers (one to seven adults per tree). Radio-tracking enabled the observation of the movements of one individual. The range of these movements reached almost 700 m. Such a distance had never been observed and could lead to new insights about the dispersal abilities of O. eremita. Furthermore, this observation led us to first considerations regarding the management of chesnut orchards, a key habitat for conservation of O. eremita in Sarthe department (France). Particularly, we emphasized the potential positive effect of keeping grafted trees producing drupes and the potential negative effect of coppices on the effi ciency of individual movements.
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Dates et versions

hal-00337322 , version 1 (06-11-2008)

Identifiants

  • HAL Id : hal-00337322 , version 1

Citer

Glenn Dubois, Vincent Vignon. First results of radio-tracking of Osmoderma eremita (Coleoptera : Cetoniidae) in French chestnut orchards. Revue d'Écologie, 2008, supplement (10), pp.131-138. ⟨hal-00337322⟩
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