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.
The most recent assessment suggests that the Cape platanna is Endangered, but that instead the decline being fuelled by habitat loss, it is now the threat from hybridisation, competition and predation by the African clawed frog.
What variables should be monitored to aid the management of invasive species? Applying the concept of essential biodiversity variables, a new study identified three essential variables for invasion monitoring; alien species occurrence, status and impact.
A recent paper by Sabrina Kumschick, C·I·B Core Team Member, together with C·I·B Director Dave Richardson and C·I·B Associate Tim Blackburn investigated whether the birds on the “100 worst” lists are indeed worthy of this honour.
Invasions of alien species begin with the human-assisted movement of living individuals or propagules across biogeographic barriers. As a result, the contributions of specific pathways to introduction and subsequent invasion—and the changes in the importance of pathways over time—are receiving increasing attention from scientists and policymakers.
