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species recognition in the emma field cricket teleogryllus emma(Gryllidae:Orthoptera)

Species Recognition in the Emma field cricket Teleogryllus e...

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第三世界生态高峰会

作者： Yikweon Jang Jae Chun Choe Division of Molecular and Life Sciences Ewha Womans University Seoul Korea Division of Molecular and Life Sciences Ewha Womans University Seoul Korea

Males of the emma field cricket teleogryllus emma produce calling songs that are attractive to receptive *** calling songs of T. emma are complex,consisting of long and short *** long chirps are made up of up to 12 single pulses and the short chirps consist of several *** of field and lab-recorded calling songs revealed that properties of long chirps are generally less variable than those of short chirps across geographic *** used both single-stimulus and two-stimulus playback experiments to learn which part of the calling calling was critical for species recognition and what features were important for sexual selection,*** used for playback experiments were 1) standard,2) long chirp only,3) long chirp augmented,4) short chirp only,and 5) short chirp augmented *** standard stimulus included both long and short chirps whose characteristics were derived from calling songs of field *** long chirp only and short chirp only stimuli were the standard stimulus without short chirp and long chirp,*** long chirp augmented and short chirp augmented stimuli were the long chirp only and short chirp only stimuli whose pulse numbers were added to the length of the standard stimulus. Results of the single-stimulus playback experiment showed that female crickets oriented more often towards the standard,long chirp only,and long chirp augmented stimuli than towards the short chirp only and short chirp augmented stimuli,indicating that the long chirp part may be critical for species *** the two-stimulus choice experiment, females preferred the standard stimulus,long chirp augmented,and short chirp augmented *** result implied that short chirps mighted be added to the long chirps to increase the attractiveness of the calling songs to female crickets in ***.

关键词： Gryllidae:Orthoptera species recognition in the emma field cricket teleogryllus emma

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