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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

Red-eared slider

Trachemys scripta

Common name:

Red-eared slider

Scientific name:

Trachemys scripta

Alternative common names:

Red-eared terrapin

Red-eared sliders are freshwater terrapins or turtles from North America (found in the Mississippi Valley from Illinois via parts of eastern New Mexico). It is listed by the IUCN’s Invasive Species Specialist Group as one of the ‘Top 100’ Worst Invasive Species. 

Additional Info

  • Where does this species come from?

    North America

    What is its invasive status in South Africa?

    NEMBA Category 1b.

    Where in South Africa is it a problem?

    Individuals have been found in Johannesburg, Pretoria, Hartebeespoort Dam, Durban, Scottburgh and Cape Town.

    How does it spread?

    They spread across wetland ecosystems and can migrate up rivers and across land to new water bodies.

    Why is it a problem?

    These exotic reptiles pose a threat to our indigenous terrapins through disease and parasite transmission as well as competition for similar resources. They also threaten biodiversity in wetland ecosystems and are known carriers of salmonella which can be transferred to people handling these terrapins.

    What does it look like?

    Description: Male and female red-eared sliders are similar in appearance and juveniles are more vividly marked than adults. Length: Adults - 25-30cm, hatchlings – 30mm Body shape: Shell flattened and oval in shape. The head is retracted straight back into the shell. Indigenous terrapins fold their head sideways into the shell. Colouration: A broad red or reddish-brown stripe situated behind each eye. Distinct black and yellow stripes are present on the head, neck, throat, legs and tail. Hatchlings and juveniles are more vividly marked than adults. The upper shell (carapace) is olive green to grey with thin yellow stripes. Habitat: Dams, rivers, streams and other wetland systems. Breeding: Females can lay up to three clutches of eggs in a season, numbering from 8-23 eggs per clutch.

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General News Updates

2019 National Symposium on Biological Invasio…


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


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


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?


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


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


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