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Singing of Neoconocephalus robustus as an example of deterministic chaos in insects.
J Biosci ; 2007 Jun; 32(4): 797-804
Article in En | IMSEAR | ID: sea-111287
We use nonlinear time series analysis methods to analyse the dynamics of the sound-producing apparatus of the katydid Neoconocephalus robustus. We capture the dynamics by analysing a recording of the singing activity. First, we reconstruct the phase space from the sound recording and test it against determinism and stationarity. After confirming determinism and stationarity, we show that the maximal Lyapunov exponent of the series is positive, which is a strong indicator for the chaotic behaviour of the system. We discuss that methods of nonlinear time series analysis can yield instructive insights and foster the understanding of acoustic communication among insects.
Subject(s)
Full text: 1 Index: IMSEAR Main subject: Arthropods / Animal Communication / Nonlinear Dynamics / Animals Language: En Journal: J Biosci Year: 2007 Type: Article
Full text: 1 Index: IMSEAR Main subject: Arthropods / Animal Communication / Nonlinear Dynamics / Animals Language: En Journal: J Biosci Year: 2007 Type: Article