Rétablissement des communautés végétales après éradication des griffes de sorcière (Carpobrotus sp.) dans le cadre du programme de restauration écologique de l'île de Bagaud (Parc national de Port-Cros, France) : résultats 5 ans après éradication

Abstract : Bagaud island (Hyères Island Archipelago, Var, France), was submitted to two major disturbances during the last centuries: the invasions of the black rat (Rattus rattus) and iceplant (Carpobrotus sp.). An eradication program of these two taxa was launched in 2010 by the Port-Cros National Park. This project involves a 10-year monitoring of animal and plant communities, including a preeradication monitoring in 2010 and 2011. Temporal changes of plant communities (i.e., plant cover and similarity between native vegetation and vegetation in areas where Carpobrotus sp. was removed) were analyzed in permanent plots (100 m² and 16 m²) before (2010-2011) and after (2013-2014) Carpobrotus sp. eradication. Native plant cover significantly increased since 2013. On coastal sites, the recovery of native flora is fast and matches with the haloresistant reference plant community. On the other hand, on inland sites, the recovered native flora includes some low matorral species as well as halo-nitrophilous species. This monitoring from 2010 to 2017 is important to understand plant community recovery after the eradication of 2 invasive taxa.
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Submitted on : Monday, October 8, 2018 - 1:26:20 PM
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Elise Buisson, Annie Aboucaya, Laurence Affre, Julie Braschi, Julie Chenot, et al.. Rétablissement des communautés végétales après éradication des griffes de sorcière (Carpobrotus sp.) dans le cadre du programme de restauration écologique de l'île de Bagaud (Parc national de Port-Cros, France) : résultats 5 ans après éradication. 2018. ⟨hal-01890146⟩

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