Assessing the potential for biological invasion--the case of Ammophila arenaria in South Africa

Hertling, U.M. and Lubke, R.A. (2000) Assessing the potential for biological invasion--the case of Ammophila arenaria in South Africa. South African Journal of Science, 96 (9/10). pp. 520-527. ISSN 0038-2353

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Abstract

Many plants, especially woody species, introduced into South Africa for ornamental or commercial purposes, have become invasive in a number of habitats. Because of the risk of an invasion of coastal dunes by yet another species, the European dune grass Ammophila arenaria, used as a dune stabilizer, is assessed using lists of attributes of invasive species and invasible ecosystems. It is impossible to predict plant invasions, but both invasive species as well as invaded ecosystems are often characterized by certain attributes which facilitate invasions. Many of the species attributes connected with invasion appear to apply to A. arenaria. Above all, the grass is characterized by ecological tolerance and vigorous rhizomatous reproduction. An important site attribute connected with invasion is an evolutionary history with isolation patterns, which applies to the South African Cape coast. We conclude also on the basis of the overseas experience, that the potential for A. arenaria to become invasive needs urgent investigation in the South African context.

Item Type:Article
Uncontrolled Keywords:biological invasions, sand dune plants, Ammophila arenaria, Cape Town, South Africa
Subjects:Y Unknown > Subjects to be assigned
Divisions:Faculty > Faculty of Science > Botany
ID Code:562
Deposited By: Ms Vivien Botha
Deposited On:05 Jun 2007
Last Modified:06 Jan 2012 16:18
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