A recent fish survey by C∙I∙B members in the headwaters of the Blyde River, Mpumalanga Province, revealed that Rainbow trout (Oncorhynchus mykiss) invasions have reduced the abundance and divided the community structure of native fish species.
Many of us are now familiar with urban commensal species - those that have adapted to life in towns and cities and can be seen to adapt their behaviour to exploit their new surroundings. Some of these urbanised species are then introduced to novel systems, and go on to become invasive.
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8 September 2021
The number of (A) invasive alien species across broad taxonomic and life-form groupings for which ecological impacts have been quantified in South Africa; and (B) the number of published studies on each group.
A review of the peer-reviewed literature was undertaken at the Centre for Invasion Biology (C·I·B) to determine the level of understanding of the impacts of invasions of all taxonomic groups in all natural and semi-natural ecosystems in South Africa.
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3 September 2021
Dr Josie Pegg (South African Institute for Aquatic Biodiversity) with a South African common carp, Cyprinus carpio. (Photo credit: Josephine Pegg)
The high demand for ornamental plants at a global scale, combined with modern and increasingly efficient modes of trade (i.e., e-commerce), highlights the horticultural trade industry as a subject of major conservation concern.
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