tree invasions

Read more about the article Australian acacias are genetically highly diverse across the globe
Invasive Sydney Golden Wattle (Acacia longifolia) invading areas in Pinheiro da Cruz, Setúbal district, Portugal (photo provided by Sara Vicente).
2021 / News

Australian acacias are genetically highly diverse across the globe

Australian acacias are some of the world’s worst invasive plants and their success has been heavily shaped through their usage by humans for various purposes. C·I·B research members Prof Jaco Le Roux, Prof Dave Richardson and Prof John Wilson, together with colleagues from the University of Lisbon, published a meta-analysis on the genetic diversity of 37 Australian Acacia species.

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19 July 2021
Read more about the article Taxonomy and introduction histories of non-native Prosopis populations for their effective management
Members of the research team during a fieldwork expedition in Ethiopia. From the left is Prof. Brian van Wilgen (C·I·B Core Team Member), Prof. Jaco Le Roux (C·I·B Research Associate) and Dr. María Loreto Castillo (C·I·B PhD graduate). (Photo provided by Prof. Brian van Wilgen)
2021 / News

Taxonomy and introduction histories of non-native Prosopis populations for their effective management

Trees in the genus Prosopis (known as mesquite) have been widely planted outside of their native ranges in many countries, and many species are now among the world’s worst woody invasives. The genus contains 44 species from the Americas, South West Asia and North Africa, and several have become major problems in South and East Africa.

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3 May 2021
Read more about the article Unscrambling the egg: resolving the introduction history for Silver wattle
Silver wattle (Acacia dealbata) invading along a river in Chile. (Photo credit: A. Pauchard)
2020 / News

Unscrambling the egg: resolving the introduction history for Silver wattle

Researchers at the Centre for Invasion Biology (C·I·B) at Stellenbosch University, found that the introduction histories of the globally important invasive tree Silver wattle (Acacia dealbata) are complex and cannot be generalized.

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30 November 2020
Read more about the article Black Alder as an emergent invader in South Africa
2020 / News

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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26 October 2020
Read more about the article Scientists propose global guidelines for the sustainable use of non-native trees to protect biodiversity
Pinus pinaster, one of many non-native trees that is highly invasive and causes major impacts in South Africa. The image shows a dense invasive stand of pines in the mountains of the Western Cape (Credit: Dave Richardson).
2020 / News

Scientists propose global guidelines for the sustainable use of non-native trees to protect biodiversity

A team of international scientists, including several with current or previous affiliations with the Centre for Invasion Biology (C∙I∙B), have collaborated to propose a series of global guidelines for the sustainable use of non-native tree species to help protect biodiversity and ecosystems around the world already threatened by climate change.

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9 October 2020