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Past occurrence of the rare landsnail Amphibulima patula (Bruguière, 1789) in Guadeloupe (Mollusca; Amphibulimidae).

Abstract : Amphibulima patula (Bruguière, 1789) is a rare native terrestrial mollusc from Guadeloupe. The past distribution of this species, assessed by shells collected from archaeological sites, natural deposits or surface surveys, shows it previously had a wider distribution that extended across all the limestone islands of the Guadeloupe archipelago. Stratigraphical contexts and radiocarbon data suggest that the presence or abundance of A. patula is related to periods of wetter environmental or climatic conditions, indica-ting that environmental factors influenced past variations in the distribution of this species. Its limitation to rare ecological refuges in periods of dry climatic conditions, combined with human-induced landscape modifications, have led to significant reductions in the numbers of individuals of this species that is today threatened with extinction in the Guadeloupe Islands.
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https://halshs.archives-ouvertes.fr/halshs-02409421
Contributor : Arnaud Lenoble <>
Submitted on : Friday, December 13, 2019 - 2:20:14 PM
Last modification on : Saturday, April 11, 2020 - 11:26:08 AM

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  • HAL Id : halshs-02409421, version 1

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Arnaud Lenoble, Alain Bertrand, Laurent Charles, Jean-Baptiste Mallye, Nathalie Serrand. Past occurrence of the rare landsnail Amphibulima patula (Bruguière, 1789) in Guadeloupe (Mollusca; Amphibulimidae).. Quaternaire, Centre National de la Recherche Scientifique, 2018, 29 (2), pp.95-104. ⟨halshs-02409421⟩

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