Read more about the article Invasive alien species in protected areas: a threat that should not be overlooked
Famine weed (Parthenium hysterophorus) is an aggressive invader in the Kruger National Park, South Africa. (Photo credit: Thembeka Thwala)

Invasive alien species in protected areas: a threat that should not be overlooked

In this commentary, a group of researchers, including C∙I∙B researchers and former C∙I∙B students, argue that when protected areas containing invasive alien species (IAS) are subjected to protected area downgrading, downsizing, and degazettement (PADDD), there is a higher chance that IAS will cause environmental and socioeconomic effects.

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Read more about the article Understanding different types of uncertainty in invasion science is crucial for effective management
The co-authors during the retreat that provided the perfect environment to nurture these reflexions. (Photo Credit: Sophia Turner)

Understanding different types of uncertainty in invasion science is crucial for effective management

Uncertainty is part and parcel of any scientific field. The point of scientific research is to acquire knowledge and to deal with different types of uncertainty to improve our understanding of natural phenomena and help us make projections about the future.

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Read more about the article A biocontrol agent persists under climate change
Cyrtobagous salviniae, the biocontrol agent for the invasive water fern Salvinia molesta (Photo credit: Jessica Allen)

A biocontrol agent persists under climate change

The water fern (Salvinia molesta) is an aggressive invader of freshwater systems where it affects the services that these ecosystems deliver. Fortunately, the use of a natural enemy of the water fern (a biological control agent), the weevil (Cyrtobagous salviniae) has been highly successful in many countries, including South Africa where the water fern is no longer considered to be problematic.  

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Read more about the article Modelling the effect of biocontrol agents on Acacia cyclops
The weevil Melanterius servulus. (Photo credits: Fiona Impson and John Hoffmann©)

Modelling the effect of biocontrol agents on Acacia cyclops

In a paper published by C·I·B researchers, Rainer Krug and Dave Richardson examined a system consisting of two seed-attacking biocontrol agents (a midge, Dasineura dielsi and a weevil, Melanterius servulus) and one invasive alien plant (Acacia cyclops).

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