Browsing by Author "Van Wilgen, Brian"

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    The impacts of different methods of alien plant control on the recovery of Fynbos ecosystems
    (2002) Parker, Fatima; Richardson, Dave; Van Wilgen, Brian; Robertson, Hamish
    This study investigated the effects of past management aimed at clearing invasive alien plants in South African fynbos ecosystems. The treatments included "bulldozing and aerial-spraying", "aerial-sprayiing", "boom-spraying" and "spot-spraying". Both an ant study and vegetation survey was conducted to test the hypothesis that fynbos is resilient to all kinds of pertubation (including the most severe alien plant management treatments employed) and that natural recovery over time is adequate to restore fynbos (without human intervention).
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    The restoration of riparian plant communities following alien plant clearing in the Western Cape
    (2002) Prins, Natalie; Van Wilgen, Brian; Richardson, Dave
    Few of the riparian zones of the Western Cape Province, South Africa, can still be described as 'natural', as many, if not all, have been impacted upon in one way or another. They are, therefore, frequently disturbed environments that are highly susceptible to invasion by alien plants. the vegetation of riparian zones controls the flow of water, nutrients and sediments into streams. Plan communities in these habitats are often rish in species, and serve as corridor facilitating the movement of organisms.