Black Alder as an emergent invader in South Africa

An invasive stand of Black Alder was recently detected along the banks of the Dwars River from Kylemore to Lanquedoc, near Stellenbosch in the Western Cape Province, which prompted an investigation into the history and distribution of Black Alder in South Africa.

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Review confirms the value of biological control

A review of the economic benefits arising from the biological control of invasive alien plants has confirmed that the practice continues to deliver very attractive returns on investment.

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Guava invasion facilitates changes in some soil properties
Guava (Psidium guajava L.) an invasive alien tree species that is widely distributed in South Africa, where it negatively impacts soil physico-chemical properties. (Photo credit: Sheunesu Ruwanza)

Guava invasion facilitates changes in some soil properties

Guava (Psidium guajava L.) is a commercially grown small tree, which also invades pastures and abandoned fields in South Africa. The tree acts as a pioneer species in recovering degraded landscapes thus making ecological restoration a challenge.

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Integrative research for invasive alien plant management: Crossing disciplinary and societal boundaries

Biological invasions are a major threat to already complex social-ecological systems and require the integration of knowledge from various disciplines and stakeholders. Accordingly, there have been strong calls for integrated approaches to developing solutions that address the threat.

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