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dc.contributorBen Hamida, Waliden_US
dc.contributorOuled Belgacem, Azaiezen_US
dc.contributorLouhaichi, Mouniren_US
dc.contributorNeffati, Mohameden_US
dc.creatorTarhouni, Mohameden_US
dc.identifier.citationMohamed Tarhouni, Walid Ben Hamida, Azaiez Ouled Belgacem, Mounir Louhaichi, Mohamed Neffati. (1/12/2017). Is long-term protection useful for the regeneration of disturbed plant communities in dry areas. African Journal of Ecology, 55 (4), pp. 509-517.en_US
dc.description.abstractIn dry areas, natural plant communities are mainly affected by climatic stress and human disturbances – overgrazing, ploughing and biomass harvesting – that accelerate their degradation. Management techniques, including creation of national parks (fencing), are needed to conserve natural resources/biodiversity. The long-term effects of protection on the plant communities should be monitored. This study assessed the results of long-term protection on the composition and diversity of the natural plant communities of Sidi Toui National Park (southern Tunisia) using the point-quadrat method and ecological indicators of the ecosystem structure. Comparison of these indicators for the period 1990–2011 inside (fenced) and outside (disturbed) the Park showed that regeneration of natural vegetation increased during the first decade of the fencing period (1990–2001), but declined during the period (2008–2011). After a long period of fencing, plant tufts were bigger and aged, and the ecosystem dynamics decreased. In the absence of animal activities, the hardpan at the soil surface impedes seedling emergence. This suggests that long-term fencing is not recommended for conserving floral diversity in dryland ecosystems. To ensure and maintain the regeneration of these ecosystems, fencing periods alternating with controlled grazing (by introducing wild herbivores) are recommended.en_US
dc.publisherWiley: 12 monthsen_US
dc.sourceAfrican Journal of Ecology;55,(2017) Pagination 509,517en_US
dc.subjectdryland vegetationen_US
dc.subjectlong-term protectionen_US
dc.titleIs long-term protection useful for the regeneration of disturbed plant communities in dry areas?en_US
dc.typeJournal Articleen_US
cg.creator.idOuled Belgacem, Azaiez: 0000-0002-5946-7540en_US
cg.creator.idLouhaichi, Mounir: 0000-0002-4543-7631en_US
cg.contributor.centerArid Regions Institute - IRAen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.crpCGIAR Research Program on Livestock and Fish - L&Fen_US
cg.contributor.funderInternational Livestock Research Institute - ILRIen_US
cg.contributor.projectCGIAR Research Program on Livestock & Fishen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
dc.identifier.statusLimited accessen_US

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