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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

Assessing the invasiveness and potential for eradication for Australian Acacia species with very limited distribution in South Africa

Assessing the invasiveness and potential for eradication for Australian Acacia species with very limited distribution in South Africa
Nkoliso Magona1,2, David M. Richardson2, John R. Wilson1,2
1Invasive Species Programme, SANBI; 2Centre for Invasion Biology, Stellenbosch University

Several Australian Acacia species have become widespread and abundant invaders, with significant negative impacts on biodiversity, ecosystem functioning and socio-economic life in South Africa. However, there are several species that are less widespread but which may have potential to expand their range into suitable but as yet unoccupied areas. Here we consider 11 species that have been recorded as present in South Africa.  For four of these, naturalised populations have been identified and efforts towards extirpation are under way (A. adunca, A. fimbriata, A. retinodes, and A. viscidula). For other species, individual plantings have been identified, but not cleared yet as there is no or little evidence of naturalization or invasion risk (e.g. A. cultriformis, A. pendula, A. ulicifolia).  Finally for other species it remains to be determined if they are still present in South Africa (A. binervata A. faciliformis, A. rubida, and A. schinoides).  The proposed study aims to review the status of all introduced Acacia species in South Africa and where desirable work towards their eradication.

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General News Updates

2019 National Symposium on Biological Invasio…

26-02-2019

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

2019 Invasive Species Training

22-01-2019

During the past five years (2014-2018), ISSA invasive species trainers have trained 4 000 in the identification of invasive species and laws pertaining to invasive species across South Africa.  ... Read more

Alien Grass Working Group

04-09-2018

Who are we? The South African National Alien Grass Working Group was jointly initiated by the South African Biodiversity Institute (SANBI) and the Centre for Excellence in Invasion Biology (C·I·B) in... Read more

Permits for planting indigenous Cynodon?

01-03-2018

On 16 February, 2018, South Africa's Department of Environmental Affairs issued amendments to the regulations and lists relating to the National List of Invasive Species.  Updates to the draft&n... Read more

Invasive species training 2018 dates released

28-02-2018

Interested in invasive species?  How much do you know about NEMBA invasive species compliance for landowners and organs of state? The South African Green Industries Council (SAGIC) have released... Read more

Communications post for Africa advertised

25-01-2018

The Nature Conservancy has advertised a brand new post:  Communications Manager, Africa Region. Knowledge of invasive species and water would be an asset in this post. See details below:    Job Titl... Read more