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Title: Altitudinal variation in life-history traits in the lawn ground cricket, Polionemobius mikado
Authors: Matsuda, Naoki
Numata, Hideharu
Author's alias: 松田, 直樹
沼田, 英治
Keywords: body size
embryonic diapause
growing season
Issue Date: Jun-2019
Publisher: Wiley
Journal title: Entomological Science
Volume: 22
Issue: 2
Start page: 198
End page: 204
Abstract: It has been reported that the lawn ground cricket, Polionemobius mikado (Orthoptera: Trigonidiidae), shows variations in voltinism and life‐history traits along latitude in Japan, but whether it shows variations along altitude has not been examined. The present study aims to determine whether there is variation in voltinism, body size and the incidence of embryonic diapause among populations of P. mikado at different altitudes in Kyoto, Japan. Six populations collected from 70 to 800 m a.s.l. showed a positive relationship between the adult head width and the altitude of sampling locality. This body size cline is attributed to the increasing proportion of larger univoltine individuals from low to high altitude. The incidence of diapause of the strain from altitude 800 m was approximately 100% when reared under natural photoperiods and temperatures from spring to summer at an altitude of 70 m, and was significantly higher than that of the strain from 70 m. These differences in life‐history traits suggest that the population of P. mikado at a higher altitude has adapted to a shorter length of the season available for growth.
Rights: This is the peer reviewed version of the following article: Matsuda, N. and Numata, H. (2019), Altitudinal variation in life‐history traits in the lawn ground cricket, Polionemobius mikado. Entomological Science, 22: 198-204, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
The full-text file will be made open to the public on 23 May 2020 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
DOI(Published Version): 10.1111/ens.12359
PubMed ID: 24843434
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