Interspecific differences of stridulatory signals in three species of bark beetles from the genus Polygraphus Er. (Coleoptera: Curculionidae, Scolytinae) inhabiting the island of Sakhalin I. A. Kerchev
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ArticleContent type: Текст Media type: электронный Subject(s): короеды | акустическое поведение | стридуляторные сигналы | Сахалин, остров | межвидовые различияGenre/Form: статьи в журналах Online resources: Click here to access online
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PeerJ Vol. 8. P. e8281 (1-13)Abstract: Stridulatory signals are involved in conspecific interactions between bark beetles
(Coleoptera: Curculionidae, Scolytinae). In this study, we compared the qualitative
profiles of acoustic signals in three species from the genus Polygraphus Er. Sympatry can
be periodically observed in two of them P. proximus and P. subopacus. Sporadically
they occur on the same plants. P. nigrielytris colonize distinctly different host plant
species; however, on the island of Sakhalin it inhabits the same biotopes. The purpose
of the study is to identify species-specific parameters and the extent of differences in
stridulatory signals of these species. Airborne signals produced during the contact of
males of the same species were experimentally recorded. Among tested parameters of
stridulatory signals, as the most species-specific were noted: chirp duration, number of
tooth-strikes per chirp, and intertooth-strike interval.
Библиогр.: с. e8281 (10-13)
Stridulatory signals are involved in conspecific interactions between bark beetles
(Coleoptera: Curculionidae, Scolytinae). In this study, we compared the qualitative
profiles of acoustic signals in three species from the genus Polygraphus Er. Sympatry can
be periodically observed in two of them P. proximus and P. subopacus. Sporadically
they occur on the same plants. P. nigrielytris colonize distinctly different host plant
species; however, on the island of Sakhalin it inhabits the same biotopes. The purpose
of the study is to identify species-specific parameters and the extent of differences in
stridulatory signals of these species. Airborne signals produced during the contact of
males of the same species were experimentally recorded. Among tested parameters of
stridulatory signals, as the most species-specific were noted: chirp duration, number of
tooth-strikes per chirp, and intertooth-strike interval.
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