Read more about the article Scale-area curves: a viable tool for managing invasive species
Acacia elata and Acacia longifolia were the focus species for this study. (a) Acacia elata was introduced throughout South Africa as an ornamental garden plant and has become invasive in areas close to suburban hotspots. (b) Acacia longifolia was introduced for dune stabilization along coastal mobile dune systems and has since spread from those original plantings.

Scale-area curves: a viable tool for managing invasive species

Scale-area curves have been used in conservation science as an affordable means of identifying shrinking populations that need protection. Invasions are the result of populations of invasive species that are spreading and becoming dominant in areas to which they have been introduced.

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Read more about the article Water canals as invasion highways for alien fish species
The Sundays Valley water-transfer canal, which distributes water and fishes from the Orange-Fish-Sundays Inter-Basin Water Transfer Scheme to hundreds of irrigation ponds used for citrus farming.

Water canals as invasion highways for alien fish species

Freshwater fish invasions are a major source of environmental homogenisation around the world; unique species assemblages are increasingly being overwhelmed by large numbers of introduced species. While active human-mediated introductions contribute to this process, there are also many passive pathways of fish introductions.

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Read more about the article The challenges of alleviating poverty through ecological restoration
A Working for Water (WfW) chainsaw operator cuts a Black Wattle (Acacia mearnsii) stem.

The challenges of alleviating poverty through ecological restoration

Public works programs are government job-creation initiatives that use labour to create or restore public infrastructure, for example, roads, hospitals, and in some cases, ecological restoration of degraded land.

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