Publications des agents du Cirad

Cirad

The Contribution of the dromedary in the spontaneous plant seeds transfer in the Northern Algerian Sahara

Trabelsi H., Senoussi A., Chelma A., Faye B.. 2012. Journal of Life Sciences, 6 (3) : p. 300-303.

The current study focuses on the contribution of the dromedary in the preservation and increase of spontaneous flora through seeds transfer by endozoochory. Thus dromedary faeces have been collected in selected area of region of Ghardaia (Northern Algeria Sahara), since it is one of the three known cameline rangelands during the four successive seasons of the years 2009-2010, in order to examine their seed contents. Our investigation allowed us to invento 1,832 seeds representing 33 different types varying according to the seasons of harvest. The biggest density of seeds was present in summer with 986 seeds, against 424 seeds in winter, 366 seeds in fall and 56 seeds in spring, and of the same way, the biggest number of types was present in summer with 30 types, consistent of the fall season with 26 types, and arrived then the season of winter with 20 types and the one of spring with five types. The gotten results allowed us to appreciate the ecological role of this animal in the desertic ecosystem in the dissemination and the proliferation of the seeds of the spontaneous flora in its fragile and hostile desert environment to the survival of the seeds enveloped in its faeces. (Résumé d'auteur)

Mots-clés : fèces; enquête; Écologie; conservation des ressources; zone aride; dissémination des graines; plante sauvage; dromadaire; désert du sahara; algérie

Thématique : Ecologie animale; Elevage - Considérations générales; Ecologie végétale; Physiologie végétale : croissance et développement

Documents associés

Article de revue