論文

査読有り
2017年2月

Extremely low fecundity and highly female-biased sex ratio in nest-living spider mite Schizotetranychus brevisetosus (Acari: Tetranychidae)

SYSTEMATIC AND APPLIED ACAROLOGY
  • Kaori Tamura
  • ,
  • Katsura Ito

22
2
開始ページ
170
終了ページ
183
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.11158/saa.22.2.2
出版者・発行元
SYSTEMATIC & APPLIED ACAROLOGY SOC LONDON, NATURAL HISTORY MUSEUM

Spider mites show various life types characterized by spinning behavior, web structure, and sociality. Individuals of the woven-nest (WN) species construct silken nests on the undersurface of host leaves, inside which they develop and reproduce. This nesting behavior may be related with the defense mechanism and life history traits of mites in the stable habitat (e.g., evergreen trees). If the WN life type affects the life-history traits, these traits may be similar within WN species. The WN species are known to be fragmentarily distributed in diverse genera, Stigmaeopsis, Schizotetranychus, Eotetranychus, and Oligonychus, and their life types are suspected to have secondarily converged. However, their life histories have not been elucidated except for several species in specific genera. To supply the information in Schizotetranychus, we investigated the demographic traits and the sex ratio of Schizotetranychus brevisetosus, which shows the WN life type and lives on the evergreen Japanese blue oak Quercus glauca. We estimated the development time of females as 22.6 +/- 3.1 days (mean +/- SD, n = 22) and the fecundity of fertilized females as 13.7 +/- 5.9 (n = 37) at 25 degrees C. The sex ratio of males to the total number of adults at emergence was low (0.072). The intrinsic rate of natural increase (r(m)) was estimated as 0.060 day(-1), one of the lowest ever reported for spider mites at the same temperature. The present results were similar to other WN species in that fecundity and male ratio were low.

Web of Science ® 被引用回数 : 5

リンク情報
DOI
https://doi.org/10.11158/saa.22.2.2
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000395118800002&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-85009262122&partnerID=MN8TOARS
URL
http://orcid.org/0000-0003-4251-8505

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