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German wasp | Vespula germanica

German wasp

Vespula germanica

Coral bush | Ardisia crenata

Coral bush

Ardisia crenata

Purple loosestrife | Lythrum salicaria

Purple loosestrife

Lythrum salicaria

Pom pom weed | Campuloclinium macrocephalum

Pom pom weed

Campuloclinium macrocephalum

Canarybird bush | Crotalaria agatiflora

Canarybird bush

Crotalaria agatiflora

Peanut butter cassia | Senna didymobotrya

Peanut butter cassia

Senna didymobotrya

Rubber vine | Cryptostegia grandiflora

Rubber vine

Cryptostegia grandiflora

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Environmental Programmes

In order to tackle our country’s socio-economic challenges, the government adopted the Outcomes based approach to improve government performance and providing focus on service delivery. find out more

A national strategic framework for the management of the family Cactaceae in South Africa

A national strategic framework for the management of the family Cactaceae in South Africa
Haylee Kaplan1, Hildegard Klein2, John R. Wilson1,3, Lesley Henderson2, Helmuth Zimmerman4, Philip Ivey1, David M. Richardson3, Phetole Manyama1Brian W. van Wilgen3, Ana NOVOA1,3
1Invasive Species Programme, South African National Biodiversity Institute, Kirstenbosch Research Centre, Claremont, South Africa;
2Agricultural Research Council – Plant Protection Research Institute;
3Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University;
4Helmuth Zimmermann & Associates (Central), Pretoria, South Africa

Cacti (Cactaceae) are among the most widespread and damaging groups of invasive plants in South Africa. There are currently 35 cactus species known to be naturalised or invasive in South Africa, most of which cause considerable ecological, social and economic impacts. However, despite a long history of controlling cactus invasions, management to date has lacked effective cohesive strategic planning at a national scale. In response to this need, a South African Cactus Working Group (SACWG) was established in 2013 to develop guidelines for a national strategic framework. This paper summarizes the status of cactus invasions and management in South Africa and presents the national strategic framework developed by the SACWG. The overarching aim of the framework is to reduce the negative impacts of cacti to a point where their benefits significantly outweigh the losses. Four strategic objectives designed to achieve the desired outcome are proposed: 1) all invasive and potentially invasive cactus species should be prevented from entering the country, 2) new cases of naturalisation of cactus species must be rapidly detected and eradicated, 3) the impacts of invasive cacti must be reduced and contained, and 4) socio-economically useful cacti (both invasive and non-invasive species) must be utilized sustainably and the risk of further negative impacts must be minimized. A decision-support tool for guiding assignment of species to each of the above-mentioned objectives is described. Indicators for evaluating the progress of strategic management of cacti are discussed in the context of the National Status Report.

Read 2904 times Last modified on Tuesday, 03 May 2016 12:28

General News Updates

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This is your invitation to South Africa's 2019 National Symposium on Biological Invasions. The convention is hosted by the Centre for Invasion Biology (CIB), University of Stellenbosch, and the Biolo... Read more

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