Mostrar el registro sencillo del ítem

The effects of browsing on the structure of Acacia tortilis (Forssk.) Hayne ssp raddiana (Savi) Brenan along a gradient of water availability in arid zones of Tunisia

hal.structure.identifierUniversité de Sfax
dc.contributor.authorNOUMI, Z.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorTOUZARD, Blaise
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorMICHALET, Richard
hal.structure.identifierUniversité de Sfax
dc.contributor.authorCHAIEB, M.
dc.date.accessioned2022-10-12T12:43:32Z
dc.date.available2022-10-12T12:43:32Z
dc.date.issued2010
dc.identifier.issn0140-1963
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157144
dc.description.abstractEnIn the past, Acacia tortilis colonised thousands of hectares in central and southern Tunisia. Nowadays, A. tortilis is restricted to central Tunisia. The aim of this research was to explore the effects of browsing on the structure of a population of A. tortilis along a gradient of soil water availability. We selected three plant communities differing in soil water availability and pressure of disturbances by livestock (browsing). We explored populations of A. tortilis by measuring dendrometric parameters to check the regeneration potentialities of this tree. We hypothesised that the regeneration of A. tortilis is positively correlated with both soil water content and browsing. The dominance of young trees of A. tortilis demonstrates that this tree definitely shows a natural regeneration mainly in the browsed areas. The variation in water availability regime may have considerable effects on the structure of A. tortilis populations and the regeneration of A. tortilis is positively correlated with water availability. Finally, browsing seems to be a negative factor affecting the general structure of the A. tortilis populations (decreasing in density, canopy cover and canopy diameter) but a positive factor in terms of regeneration (higher abundance of young trees in browsed areas).
dc.language.isoen
dc.publisherElsevier
dc.subjectDENDROMETRIC PARAMETERS
dc.subjectHERBIVORIE
dc.subjectPARAMÈTRE DENDROMETRIQUE
dc.subject.enACACIA TORTILIS
dc.subject.enHERBIVORY
dc.subject.enNATURAL REGENERATION
dc.subject.enSOIL WATER CONTENT
dc.subject.enTREE
dc.title.enThe effects of browsing on the structure of Acacia tortilis (Forssk.) Hayne ssp raddiana (Savi) Brenan along a gradient of water availability in arid zones of Tunisia
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jaridenv.2009.11.007
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalJournal of Arid Environments
bordeaux.page625-631
bordeaux.volume74
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue6
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02665702
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02665702v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Arid%20Environments&rft.date=2010&rft.volume=74&rft.issue=6&rft.spage=625-631&rft.epage=625-631&rft.eissn=0140-1963&rft.issn=0140-1963&rft.au=NOUMI,%20Z.&TOUZARD,%20Blaise&MICHALET,%20Richard&CHAIEB,%20M.&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem