invasive (s Afr)

Invasive species are that group of aliens that invade natural veld.

There are several categories of invasive species. We do not include species in their passive phase. Those are "tame" aliens that do not spread, or do not spread from gardens and cropland.

Invasive species may be in their early phases - in which case, please report them on the project

• Alien Early Detection & Rapid Response.

Invasive species may spread and take over entire ecosystems. Some are worse than others and alter the ecosystem processes, like water (Gums), fire regimes (many), nutrient cycling (wattles): these are called ecosystem transformers and are the most damaging to natural systems.

Some may be under partial or complete biocontrol. In which case please consider adding to the project

• Alien Biocontrol.
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