Structures de végétation et conservation des zones humides temporaires méditerranéennes : la région des Mogods (Tunisie septentrionale) |
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| Authors: | Hafawa Ferchichi-Ben Jamaa,Serge D. Muller,Amina Daoud-Bouattour,Zeineb Ghrabi-Gammar,Laï la Rhazi,Ingeborg Soulié -Mä rsche,Mounira Ouali,Semia Ben Saad-Limam |
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| Affiliation: | 1. Département de biologie, faculté des sciences de Tunis, université Tunis El Manar, campus le Belvédère, 2092 Tunis, Tunisie;2. UR biogéographie, climatologie appliquée et dynamique érosive, faculté des lettres, des arts et des humanités de Manouba, université de Manouba, Manouba, Tunisie;3. CNRS, université Montpellier 2, institut des sciences de l’évolution (ISE-M), case 061, place E.-Bataillon, 34095 Montpellier cedex 05, France;4. Institut National agronomique de Tunisie, 43, avenue Charles-Nicolle, 1082 cité Mahrajène, Tunis, Tunisie;5. Laboratoire d’écologie aquatique et environnement, faculté des sciences, université Hassan II Aïn Chock, BP 5366, Maarif, Casablanca, Maroc |
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| Abstract: | Floristic surveys and phytoecological relevés were conducted on 36 temporary wetlands of Mogods region. Multivariate analyses (CA, AHC) performed on these data reveal the high specific and biocoenotic diversity of Mogods wetlands, which appear controlled by substrate nature and hydrology. Among the 128 hydrophytic species inventoried, 38 are presently in precarious status and 6 are presumed extinct. The Mogods region harbours, moreover, very rare habitats (peatlands and semi-permanent lakes), and a vast plain so-called Garâa Sejenane, exceptionally rich in temporary wetlands. These results underline the urgency of an adapted conservatory management, based on the development of scientific studies dealing with structure and functioning of hydrophytic communities of the region. |
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| Keywords: | Afrique du Nord Communauté s vé gé tales Espè ces rares Hydrophytes Biodiversité |
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