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Contribution à la connaissance de l’étage subalpin dans le massif du mont Aigoual (Gard, Lozère) : synthèse bibliographique, délimitation, caractérisation floristique, et comparaison à l’échelle du Massif central

Abstract : After a global bibliographical review on the subalpine belt, our work draws up an unpublished synthesis on the flora and vegetation of the higher part of the mont Aigoual massif (Gard, Lozère): during several years of prospecting, a large number of recent floristic observations have been entered into a database. These data concern all plant species considered typical of the altitude habitats of the Massif central, notably beech woods and mosaics of lawns and heathlands at the top. The data thus produced enabled us, initially, to delimit precisely the subalpine belt on the Aigoual massif and to map the habitat of community interest «9140 subalpine beech forests». This habitat with a high conservation value had not yet been inventoried on this massif, despite its location in the heart of the Cévennes National Park and a Natura 2000 site. We then highlighted 27 species of vascular flora linked to the subalpine belt of the massif. This cortege of anorophytes is compared to those described on the other mountains of the Massif central. It is finally demonstrated that the mont Aigoual massif bears a strong conservation responsibility for 7 anorophytes at the scale of the Massif central. All of the data produced are fed into the SINP, and can be used as a baseline for monitoring the impact of climate change.
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Mario Klesczewski, Pouget Léa, Lecoq Mathis, Oudot Maxime, Gautier Kélian, et al.. Contribution à la connaissance de l’étage subalpin dans le massif du mont Aigoual (Gard, Lozère) : synthèse bibliographique, délimitation, caractérisation floristique, et comparaison à l’échelle du Massif central. BIOM - Revue scientifique pour la biodiversité du Massif central, Université Clermont Auvergne, 2020, 1 (1), pp.49-68. ⟨10.18145/biom.v1i1.251⟩. ⟨hal-02975143⟩

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