Title |
Spatio-Temporal Dynamics in Collective Frog Choruses Examined by Mathematical Modeling and Field Observations
|
---|---|
Published in |
Scientific Reports, January 2014
|
DOI | 10.1038/srep03891 |
Pubmed ID | |
Authors |
Ikkyu Aihara, Takeshi Mizumoto, Takuma Otsuka, Hiromitsu Awano, Kohei Nagira, Hiroshi G. Okuno, Kazuyuki Aihara |
Abstract |
This paper reports theoretical and experimental studies on spatio-temporal dynamics in the choruses of male Japanese tree frogs. First, we theoretically model their calling times and positions as a system of coupled mobile oscillators. Numerical simulation of the model as well as calculation of the order parameters show that the spatio-temporal dynamics exhibits bistability between two-cluster antisynchronization and wavy antisynchronization, by assuming that the frogs are attracted to the edge of a simple circular breeding site. Second, we change the shape of the breeding site from the circle to rectangles including a straight line, and evaluate the stability of two-cluster and wavy antisynchronization. Numerical simulation shows that two-cluster antisynchronization is more frequently observed than wavy antisynchronization. Finally, we recorded frog choruses at an actual paddy field using our sound-imaging method. Analysis of the video demonstrated a consistent result with the aforementioned simulation: namely, two-cluster antisynchronization was more frequently realized. |
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Mendeley readers
Geographical breakdown
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Other | 14 | 19% |
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