Livistona carinensis

Détails

Ressource 1Télécharger: Cosiaux et al. 2018.pdf (2865.41 [Ko])
Etat: Public
Version: de l'auteur
Licence: Non spécifiée
ID Serval
serval:BIB_EE409BD4A7E2
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Livistona carinensis
Périodique
The UICN Red List of Threatened Species 2018
Auteur(s)
Cosiaux Ariane, Welch Hillary, Gardiner  Lauren M., Welch Geoff, Couvreur Thomas L.P.
Statut éditorial
Publié
Date de publication
2018
Peer-reviewed
Oui
Pages
e.T30402A95306943
Langue
anglais
Résumé
Livistona carinensis is a palm species occurring in Djibouti and Yemen. It was previously also known from Somalia, but it is feared to have been extirpated in this country due to unsustainable harvesting for timber and the expansion of date palm plantations. Excluding Somalia, the known global extent of occurrence (EOO) for the species is 19,748 km2, and the area of occupancy (AOO) appears to be limited, being restricted to just 84 km2 across its present geographic range. The species is estimated to occur in no more than 3-5 threat-defined locations. In Djibouti, the palm is known to be mainly threatened by habitat loss due to gardening activities (agroforestry systems), habitat degradation due to diversion of surface water to irrigate gardens, torrential floods and livestock grazing. Violent flash-floods, livestock grazing, and the removal of young palms inside gardens, seriously affect the regeneration of the subpopulations, and explain the senescence (ageing nature) of the individuals. These threats have been exacerbated by a drought in the region since 2009, which has led to the drying up of springs and profound changes to both the wadi bed habitats used by the palm and the hydrological regime. In Yemen, the species is facing extensive harvesting for timber and removal in order to plant date palms, although large stands are still present at one site (Al Jubah). Over the last 60 years (three generations), it is inferred that the global population of mature individuals of L. carinensis has declined by at least 50%. The species does not occur in any effectively protected area and conservation actions are urgently needed. The species is assessed as Endangered, but at national level, the species is facing higher extinction risk; in Djibouti it could be considered to be regionally Critically Endangered and in Somalia it is thought likely to be regionally Extinct in the Wild.
Open Access
Oui
Création de la notice
20/09/2019 13:13
Dernière modification de la notice
20/09/2019 13:18
Données d'usage