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   Achatina fulica (mollusque)  English     
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      Achatina fulica shell (Photo credit: T.A. Burch and R.H. Cowie) - Click for full size   Achatina fulica shell (Photo credit: T.A. Burch and R.H. Cowie) - Click for full size   Achatina fulica live (Photo credit: D.J. Preston) - Click for full size   Achatina fulica live (Photo credit: D.J. Preston) - Click for full size
    Nom taxonomique: Achatina fulica Bowdich, 1822
    Synonymes: Lissachatina fulica (Bowdich 1822)
    Noms communs: achatine (French), Afrikanische Riesenschnecke (German), escargot géant d'Afrique (French), giant African land snail, giant African snail (English)
    Type d'organisme: mollusque
    L'escargot géant africain (Achatina fulica) est une menace pour la viabilité des cultures et pour les écosystèmes indigènes. Ses impacts négatifs sur la faune indigène sont multiples allant de la compétition, de la transmission de maladie, à la consommation directe de plantes indigènes. Les escargots indigènes des écosystèmes insulaires fragiles comme Hawaii et les îles de Polynésie française sont particulièrement sensibles aux effets négatifs d'A. fulica et à d'autres escargots exotiques. La meilleure façon de prevenir la diffusion d'A. fulica est de renforcer les systèmes internationaux de quarantaine.
    Se rencontre dans:
    broussailles/savanes, côtes, forêts naturelles, plantations forestières, rudéral/perturbé, zones agricoles, zones humides, zones ripisylves, zones urbaines
    Notes
    The Achatinidae gastropod family is native to Africa. The family is represented by about 200 species in 13 genera (Raut & Barker 2002). Several species of Achatinidae have attained pest status within their native range when the habitat has been anthropomorphically modified as a crop system including A. fulica (Raut & Barker 2002). Within the Achatinidae , four species are classified as giant African snails: Achatina achatina, A. fulica, Archachatina marginata, and Limicolaria aurora (Smith and Fowler 2003, in Venette & Larson 2004).

    Some island systems appear to be resistant to invasion by A. fulica. The low abundance of A. fulica on some Pacific atolls may be due to the sandy soils and predation by hermit crabs (Coenobita perlatus and Birgus latro) (Schotman 1989, in Raut & Barker 2002). The omnivorous crab Gecarcoidea natalis provides biotic resistance to invasion by A. fulica on Christmas Island (Lake and O’Dowd 1991, in Raut & Barker 2002).

    Meyer and Shiels (2009) hypothesise that reduction or eradication of Rattus rattus populations may cause an ecological release of some nonindigenous snail species where these groups coexist. As such, effective restoration for native snails and plants may not be realised after R. rattus removal in forest ecosystems as a consequence of the complex interactions that currently exist among rats, nonindigenous snails, and the rest of the food web.

    Cette espèce figure sur la liste de l’UICN des 100 espèces parmi les plus envahissantes au monde
    Révisé par: Review of updates under progress.
    Dr. Robert H. Cowie, Center for Conservation Research and Training, University of Hawaii
    Sources principales: Raut & Barker 2002
    Compilé par: IUCN/SSC Invasive Species Specialist Group (ISSG)
    Updates on management information with support from the Overseas Territories Environmental Programme (OTEP) project XOT603, a joint project with the Cayman Islands Government - Department of Environment
    Dernière mise à jour: Tuesday, 2 March 2010


ISSG Landcare Research NBII IUCN University of Auckland