| Titre : |
The evolution and execution of a plan for invasive weed eradication and control, Rangitoto Island, Hauraki Gulf, New Zeland |
| Type de document : |
Extrait d'ouvrage |
| Auteurs : |
S. H. Wotherspoon ; J. A. Wotherspoon |
| Année de publication : |
2002 |
| Importance : |
381-388 |
| Langues : |
Français (fre) |
| Catégories : |
[CBNPMP-Géographique] Nouvelle Zélande
[CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
|
| Résumé : |
A plan for management of invasive weeds on Rangitoto Island, in the Hauraki Gulf, Auckland, New Zealand, was developed during five years of weed control on the island. Rangitoto is a shallow marine basaltic shield volcano, with gently sloping fragmented lava flanks topped by a central scoria cone. Invasive weed control aims to protect the native plant communities and the unique plant successional processes from bare lava to forest. There are 72 species of invasive weeds destined for control or eradication, many of which are not managed as weeds elsewhere in New Zealand. A draft plan was devised in 1995 that considered distribution, impact on the native vegetation, and efficiency of propagule dispersal in setting priorities for control. The result was a strategy with a top priority of controlling around 20 species that had the potential to drastically alter the natural vegetation, but still had very limited populations. The second stage of the strategy was to control the remaining 50 species on a geographical basis, proceeding from the least-infested areas to the most densely infested, generally dictated by the distribution of the widely-distributed alien invasive Rhamnus alaternus (Rhamnaceae). The weed management plan has evolved over five years with improving control techniques, new herbicides, new weed finds, and better mapping and relocation systems. |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=84899 |
Wotherspoon, S. H., Wotherspoon, J. A.
2002
The evolution and execution of a plan for invasive weed eradication and control, Rangitoto Island, Hauraki Gulf, New Zeland.
In: Turning the tide : the eradication of invasive species, proceedings of the International conference on eradication of island invasives. IUCN, Gland: 381-388.
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The evolution and execution of a plan for invasive weed eradication and control, Rangitoto Island, Hauraki Gulf, New Zeland (2002)
