Bioacoustic signal analysis of seven Grylloidean (Orthoptera: Ensifera) species
Subject Areas :
Keywords: Chirp, Grylloidea, Modicogryllus, Bioacoustic signals, Calling songs,
Abstract :
Calling songs are generated usually by males of insects such as Orthopterans for mating. Bioacoustic signals of seven species belonging to the families: Gryllotalpidae (Gryllotalpa gryllotalpa) andGryllidae (Acheta domesticus, Eumodicogryllus bordigalensis, Melanogryllus desertus, Gryllus campestris, Gryllus bimaculatus and Modicogryllus frontalis) of Grylloidea were sampled. The songs were recorded in the field or in laboratory from live animals and were analyzed with MATLAB software. Minimum, maximum, mean and standard deviation of the studied species in MFCC was obtained. The lowest level was at Gryllus campestris, while, Gryllotalpa gryllotalpa was introduced with the highest coefficient. Signal processing showed that song characters indicate great differences among species and can be used for identification of them.
