New AI-Powered Tool Gives New Zealand Early Warning on Invasive Weeds
The Department of Conservation will launch a free digital surveillance system called SWAT to automatically flag emerging invasive weeds across New Zealand.
On Tuesday the Department of Conservation will roll out SWAT, a free, open-source digital surveillance tool designed to spot nascent invasive weeds before they spread. Created by Dr Kate McAlpine, whose PhD focused on weed impacts, the system automatically scans local and global databases such as the Global Biodiversity Information Facility and sends alerts to anyone who sets criteria for specific species or locations.
Early trials have already alerted councils in Waikato and the Te Papa curator to previously undocumented infestations, prompting rapid follow-up actions. The tool integrates data from citizen-science platforms like iNaturalist, enhancing map accuracy and providing detailed distribution histories dating back to the 1930s. By improving early detection, officials hope to reduce the roughly $50 million yearly cost of weed management in New Zealand. The project, supported by the Govtech Accelerator programme, will also be showcased at a biodiversity expo during upcoming climate talks in Armenia.
Why it matters
Faster detection of invasive weeds can protect ecosystems, agriculture and reduce costly control efforts.
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