title: No Effect of Body Size on the Frequency of Calling and Courtship Song in the Two-Spotted Cricket, Gryllus bimaculatus.
abstract: The relationship between body size and vocalization parameters has been studied in many animal species. In insect species, however, the effect of body size on song frequency has remained unclear. Here we analyzed the effect of body size on the frequency spectra of mating songs produced by the two-spotted cricket, Gryllus bimaculatus. We recorded the calling songs and courtship songs of male crickets of different body sizes. The calling songs contained a frequency component that peaked at 5.7 kHz. On the other hand, courtship songs contained two frequency components that peaked at 5.8 and 14.7 kHz. The dominant frequency of each component in both the calling and courtship songs was constant regardless of body size. The size of the harp and mirror regions in the cricket forewings, which are the acoustic sources of the songs, correlated positively with body size. These findings suggest that the frequency contents of both the calling and courtship songs of the cricket are unaffected by whole body, harp, or mirror size.
authors.affiliation: Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 3-1, 7-chome, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Miyashita
authors.affiliation: Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 3-1, 7-chome, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Hayato
authors.initials: H
authors.lastname: Kizaki
authors.affiliation: Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 3-1, 7-chome, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Kazuhisa
authors.initials: K
authors.lastname: Sekimizu
authors.affiliation: Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 3-1, 7-chome, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Chikara
authors.initials: C
authors.lastname: Kaito
mesh_terms: D000818:Animals; D049628:Body Size; D003380:Courtship; D005260:Female; D006135:Gryllidae / Q000033:anatomy & histology* / Q000502:physiology; D008297:Male; D012726:Sexual Behavior, Animal / Q000502:physiology*; D014828:Vocalization, Animal / Q000502:physiology*; D014921:Wings, Animal / Q000033:anatomy & histology