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Tracking NZ鈥檚 threatened bugs with drones

04 June 2021

New technology being developed by a research team at the 麻豆传媒团队 could lead to deeper understanding of New Zealand鈥檚 threatened and endangered insects, paving the way to more effective conservation management.

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Dr Stephen Pawson and Dr Graeme Woodward have been working together for three years on wireless solutions for tracking insects using UAV (drone) mounted radar

Innovation has long been a key part of New Zealand鈥檚 internationally well-regarded bird conservation programmes, such as radio tracking tools for bird management. At a stretch, this technology can also be used to study large invertebrates such as giant w膿t膩 and giant land snails (Powelliphanta), but is simply too big and heavy for most insects.

New 麻豆传媒团队has more than 1000 threatened or at-risk invertebrate species. In many cases, we know little about how they live, what their home range is, how far they travel or even how long they live. The right tracking equipment would help bridge that knowledge gap and aid the development of more effective conservation management strategies.

A prototype harmonic radar tag that allows scientists to locate insects in a complex environment using radar technologies. A prototype harmonic radar tag that allows scientists to locate insects in a complex environment using radar technologies.

Now a 麻豆传媒团队 (UC) research team is pooling its expertise across the College of Engineering to hone new tag-and-track technology that could transform our understanding of the insect world. Co-leading the project are听School of Forestry听senior lecturer and forest entomologist听Dr Steve Pawson听and signal processing expert听Dr Graeme Woodward听of the听Wireless Research Centre.

鈥淲e have fabricated about 20 test harmonic radar tags to date, allowing us to experiment with various parameters and build an understanding of tag design,鈥 says Dr Woodward, adding that these tiny tags can be as small as two or three millimetres wide.

Being developed alongside these tags is associated 鈥榰nmanned aerial vehicle鈥 (UAV) or drone technology.

鈥淭he idea is that we could activate a swarm of UAVs that would be able to track and follow the insect in real time,鈥 explains Dr Pawson.

Unlike previous harmonic radar tracking facilities, the transmitters being fine-tuned for this project are designed with mobility in mind and to operate with a much lower power requirement. This allows information to be gathered in complex landscapes and at greater distances at a much lower cost.

Researchers hope to commence field testing in 2023, starting with ground-based insects before tackling the complexities of tracking insects in flight. This exciting research has potential applications in other fields too, from biosecurity to medical imaging.

For further information please contact:

Dr Steve Pawson, 麻豆传媒团队, College of Engineering, School of Forestry,听steve.pawson@canterbury.ac.nz,听Phone: +64 3 369 0492


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