Dial-a-frog: Researchers develop the 'FrogPhone' to remotely call frogs in the wild

phys.org | 12/6/2019 | Staff
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Researchers have developed the 'FrogPhone', a novel device which allows scientists to call up a frog survey site and monitor them in the wild. The FrogPhone is the world's first solar-powered remote survey device that relays environmental data to the observer via text messages, whilst conducting real-time remote acoustic surveys over the phone. These findings are presented in the British Ecological Society Journal Methods in Ecology and Evolution today.

The FrogPhone introduces a new concept that allows researchers to "call" a frog habitat, any time, from anywhere, once the device has been installed. The device has been developed at the University of New South Wales (UNSW) Canberra and the University of Canberra in collaboration with the Australian Capital Territory (ACT) and Region Frogwatch Program and the Australian National University.

FrogPhone - Mobile - Data - Coverage - Capitalises

The FrogPhone utilises 3G/4G cellular mobile data coverage and capitalises on the characteristic wideband audio of mobile phones, which acts as a carrier for frog calls. Real time frog calls can be transmitted across the 3G/4G network infrastructure, directly to the user's phone. This supports clear sound quality and minimal background noise, allowing users to identify the calls of different frog species.

"We estimate that the device with its current microphone can detect calling frogs from a 100-150m radius" said lead author Dr. Adrian Garrido Sanchis, Associate Lecturer at UNSW Canberra. "The device allows us to monitor the local frog population with more frequency and ease, which is significant as frog species are widely recognised as indicators of environmental health" said the ACT and Region Frogwatch coordinator and co-author, Anke Maria Hoefer.

FrogPhone - Unifies - Acoustic - Monitoring - Methods

The FrogPhone unifies both passive acoustic and active monitoring methods, all in a waterproof casing. The system has a large battery capacity coupled to a powerful solar panel. It also contains digital thermal sensors to automatically collect environmental data such as water and...
(Excerpt) Read more at: phys.org
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