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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

Status of invasion on sub-Antarctic Marion and Prince Edward Islands

Status of invasion on sub-Antarctic Marion and Prince Edward Islands
Michelle GREVE, Rabia Mathakutha, Christien Steyn1
1Department of Integrated Plant and Soil Sciences, University of Pretoria, Private Bag X20, Hatfield, 0028, South Africa.

The sub-Antarctic Prince Edward Islands (PEIs), South Africa’s southern-most territories, are of high conservation value as they are one of the few unique systems of their nature that are in existence globally. Despite their isolation and the strict management policies against the introduction of alien species to sub-Antarctic islands in general, and more specifically to the PEIs, several invasive plants have established on the PEIs and the introduction of propagules continue. Here we review the history and agents of alien species on the PEIs and explore their impacts on the region. This review will provide a comprehensive evaluation of the status of biological invasions in the PEIs. This will include lists of species, descriptions of how their distribution status has changed over time, the trends in, and the scale of the impact of invasion, the extent of invasion across the islands, pathways of invasion and eradication efforts. In addition, gaps in our knowledge of the identity and effects of alien species on the PEIs will be discussed. Finally, this paper will provide information on the management approaches in place on the PEIs, how they have changed over time, and their effectiveness. 

Read 3137 times Last modified on Tuesday, 03 May 2016 12:10

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