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Endemic Farasan gazelle (Gazella gazella farasani) enhance the dispersal of invasive Prosopis juliflora on Farasan Islands, Saudi Arabia

Wronski, T and Mosfer, AN and Plath, M (2014) Endemic Farasan gazelle (Gazella gazella farasani) enhance the dispersal of invasive Prosopis juliflora on Farasan Islands, Saudi Arabia. REVUE D ECOLOGIE-LA TERRE ET LA VIE, 67 (3). ISSN 0249-7395

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Abstract

Invasive Prosopis juliflora dispersal on Farasan Kebir (Miharraq area, Wadi Matr) was investigated in relation to endozoochory by Farasan Gazelle (Gazella gazella farasani). A germination experiment was conducted to test defecated seed viability of competing P. juliflora and Acacia ehrenbergiana. It revealed that 0.0013 ± 0.0009 Acacia seeds per gram of faeces germinated, while the rate of germinating Prosopis seeds was higher (0.0053 ± 0.0022 seeds per gram of faeces). Dung middens with a Prosopis seedling (or a young tree nearby) were distinctly closer to the putative centre of Prosopis introduction (Al-Qisar and Miharraq villages) than middens without Prosopis, suggesting that gazelles whose home ranges (mean size, females: 2.07 km2, males: 0.71 km2) encompass the gardens edging the aforementioned villages contribute to the dispersal of this invasive species. Altogether, our results suggest that gazelles on the Farasan Islands contribute to the invasion success of Prosopis; it still needs to be investigated though to what extent also domestic livestock - in particular goats - contribute to Prosopis dispersal. Based on our present data it is recommended to reduce the number of Prosopis trees in the protected area around Wadi Matr by mechanical elimination

Item Type: Article
Uncontrolled Keywords: 0602 Ecology
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QL Zoology
Divisions: Natural Sciences and Psychology
Publisher: Societe Nationale de Protection de la Nature
Related URLs:
Date Deposited: 03 Aug 2017 15:15
Last Modified: 03 Aug 2017 15:15
URI: http://researchonline.ljmu.ac.uk/id/eprint/6878

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