Read more about the article Rapid increase in common myna invasion in an iconic protected area
Figure: Current distribution map with years of first sightings. Only first records for a given location are shown. Most of the earliest records (before 2001) come from urban areas outside the park, except for the very first record at Talamati and Lower Sabie camps (white dots). The majority of the records come from the most recent time interval (2016–2020), with mynas appearing to establish more frequently in the northern part of KNP.

Rapid increase in common myna invasion in an iconic protected area

A study by C∙I∙B Core Team Member, Llewellyn Foxcroft and colleagues examined the rates of invasion of common mynas into the Kruger National Park, and whether the birds were becoming permanent residents.

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Read more about the article Review on catfish invasions in Brazil and South Africa highlights the need for impact studies
C·I·B core team member Olaf Weyl holding an African sharptooth catfish (Clarias gariepinus). African sharptooth catfish is a large predator, reaching up to 1.7 meters in length and weights of 60kg. (Photo credit: Olaf Weyl)

Review on catfish invasions in Brazil and South Africa highlights the need for impact studies

A recent review paper on the African sharptooth catfish (Clarias gariepinus) has highlighted the urgent need for impact studies.

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Read more about the article Parasites as drivers and passengers of biological invasions
A classic example of a parasite influencing an invasion is the replacement of the red squirrel (Sciurus vulgaris) by the grey (S. carolinensis) in the UK. The invasion of the grey and severe population decline of the red has been mediated at least in part by parapoxvirus introduced from North America along with the grey squirrels.

Parasites as drivers and passengers of biological invasions

Alien species are a common sight around the world. Yet, the diversity and ubiquity of these species belies the fact that many alien introductions fail to take hold.

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Read more about the article Africa’s first armoured catfish invasion
A juvenile vermiculated sailfin catfish sampled from the Nseleni River.

Africa’s first armoured catfish invasion

The South American armoured catfish family Loricariidae includes more than 700 nominal species. Some are popular aquarium fishes in the global pet trade. Releases by aquarists and escape from fish farms have resulted in several armoured catfish invasions in Central and North America, Asia and now, Africa.

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