Alien pest of wheat and maize could pose a threat to South Africa

Alien pests of agriculture cause billions of Rands’ worth of damage to South African crops every year. Knowledge on which pests could pose a threat in the future is vital to inform South Africa’s biosecurity.

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Sour fig changes invertebrate diversity in the invasive range, C·I·B study shows
Carpobrotus edulis, native to South Africa, is invasive in the coastal areas of the Iberian Peninsula (Galicia, Spain). (Photo credit: Jonatan Rodríguez)

Sour fig changes invertebrate diversity in the invasive range, C·I·B study shows

The invasive plant sour fig (Carpobrotus edulis: also known as Hottentot-fig, ice plant, highway ice plant, or pigface) can have a clear impact reducing the abundance of native invertebrates, with substantial effects on herbivores.

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How to sample recreational vessels for marine alien fouling species
GoPro images of A) Koebraa Peters controlling the ROV from the surface; B) ROV collecting a visual sample from a niche area of a yacht; C) the diver recording alien species detected from diver visual samples and D) an ROV image of the diver collecting a scrape sample from a yacht hull. (Photo credits: Koebraa Peters)

How to sample recreational vessels for marine alien fouling species

The most effective method to sample recreational vessels for marine alien fouling species is to combine diver-based and lab-based methods, a study reported. Published in the Journal of Environmental Management, the study was conducted by C·I·B Post-doctoral associate, Koebraa Peters, C·I·B Core Team Member, Tammy Robinson and SANBI’s Marine Programme Manager, Kerry Sink.

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A novel system for ranking and comparing the impacts of invasive species

As many invasive non-native (or alien) species pose a global threat to human well-being and livelihoods, an international team of researchers, including C·I·B researchers and associates, have recently developed a new transparent ranking system for plants and animals...

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Australian redclaw crayfish quickly spreading in South Africa and Swaziland
High numbers of Australian redclaw crayfish (Cherax quadricarinatus) caught in a trap in South Africa (Photos by Ana Nunes)

Australian redclaw crayfish quickly spreading in South Africa and Swaziland

A recent study, led by C·I·B Post-doc Ana Nunes, confirms the presence of established and widespread populations of the Australian redclaw crayfish in South Africa and Swaziland.

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