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Une analyse socio-économique de la gestion et du contrôle des plantes envahissantes dans l’archipel des Mascareignes

Abstract : Biological invasions contribute to the degradation of biodiversity globally. Invasive alien plants have impacted on natural resources management and have generated substantial costs of control and economic loss. Various management options have been put in place to control the level of invasions of targeted species. The public’s perception of invasive species varies among stakeholders. Controversies and conflicts emerged as a consequence of diverging opinions on the management of invasions. We conducted an inter-disciplinary study on the socio-ecological and economic dimensions related to the management of the invasive Rubus alceifolius, following a biological control programme in Réunion Island (France). Firstly, we carried out an economic analysis of the management options for R. alceifolius with future scenario on the cost of invasion. Secondly we assessed the impact of the recovery of native species post biological control. Thirdly a socio-anthropological investigation to understand the rationale behind controversies amongst stakeholders, was investigated. Lastly, a gap-analysis of the policy framework corresponding to a biological control programme was conducted. We found that the biological control programme of R. alceifolius was successful within the elevation limit of 800 m, from both an economic and ecological perspective. Given the shortfall in the decision-making process and implementation, this study demonstrated the crucial need to identify and involve stakeholders in all stages of a biological control programme. We concluded with key recommendations for successful biological programmes.
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2018lare0004_CCybele.pdf
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  • HAL Id : tel-02076447, version 1

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Marie Cathleen Cybèle. Une analyse socio-économique de la gestion et du contrôle des plantes envahissantes dans l’archipel des Mascareignes. Biologie du développement. Université de la Réunion, 2018. Français. ⟨NNT : 2018LARE0004⟩. ⟨tel-02076447⟩

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