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Visualizing Phonotactic Behavior of Female Frogs in Darkness
Ikkyu Aihara1, Phillip J Bishop2, Michel E B Ohmer3
1Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Japan. aihara@cs.tsukuba.ac.jp.
Scientific Reports
|September 7, 2017
Summary
Researchers developed a new method to track female frogs
Area of Science:
- Animal behavior
- Bioacoustics
- Ecology
Background:
- Animals use conspecific sounds for mate identification.
- Female anurans use acoustic cues to locate and approach males for mating.
Purpose of the Study:
- To present a novel technique for visualizing and recording nocturnal phonotaxis.
- To enable automatic tracking of female frogs' approach to sound sources.
Main Methods:
- Utilized multiple sound-indication devices and miniature LED backpacks.
- Recorded LED coordinates for automatic position tracking of female frogs.
- Discriminated sound sources (male calls, loudspeakers) using illumination patterns.
Main Results:
- Successfully visualized and recorded the nocturnal phonotactic approach of female Litoria chloris.
- Demonstrated automatic tracking of female frog movement in laboratory and natural habitats.
- Enabled differentiation between multiple sound sources during phonotaxis.
Conclusions:
- The innovative methodology is widely applicable for studying phonotaxis in nocturnal animals.
- This technique can reveal spatial structures of acoustic communication in nocturnal species.
