Effect of host age and size on offspring sex ratio in the pupal parasitoid Pimpla (=Coccygomimus) luctuosa (Hymenoptera: Ichneumonidae) - 九大コレクション

＜紀要論文＞
Effect of host age and size on offspring sex ratio in the pupal parasitoid Pimpla (=Coccygomimus) luctuosa (Hymenoptera: Ichneumonidae)

作成者	著者識別子 K001630 作成者名 Ueno, Takatoshi 上野, 高敏ウエノ, タカトシ所属機関所属機関名 Faculty of Agriculture,Kyushu University
本文言語	英語
出版者	Faculty of Agriculture, Kyushu University
出版者	九州大学大学院農学研究院
発行日	2005-10-01
収録物名	九州大学大学院農学研究院紀要
巻	50
号	2
開始ページ	399
終了ページ	405
出版タイプ	Version of Record
アクセス権	open access
Crossref DOI	https://doi.org/10.5109/4653
関連DOI	Journal of the Faculty of Agriculture, Kyushu University \|\| 50(2) \|\| p399-405
	九州大学大学院農学研究院紀要 \|\| 50(2) \|\| p399-405
	http://www.agr.kyushu-u.ac.jp/index.html
関連URI	Journal of the Faculty of Agriculture, Kyushu University \|\| 50(2) \|\| p399-405
	九州大学大学院農学研究院紀要 \|\| 50(2) \|\| p399-405
	http://www.agr.kyushu-u.ac.jp/index.html
関連情報	Journal of the Faculty of Agriculture, Kyushu University \|\| 50(2) \|\| p399-405
	九州大学大学院農学研究院紀要 \|\| 50(2) \|\| p399-405
	http://www.agr.kyushu-u.ac.jp/index.html

ファイル	ファイルタイプ	サイズ	閲覧回数	説明
p399	pdf	475 KB	419

PISSN	0023-6152
NCID	AA00697606
レコードID	4653
査読有無	査読無
ISSN	0023-6152
NCID	AA00697606
注記	Host afe is an important factor affecting the offspring sex ratio of egg and larval parasitoid wasps. Relatively few studies have investigated the effect of host age on the offspring sex ratio in pupal parasitoid wasps. The current study was undertaken to assess whrether the age of host pupae could influence the offspring sex ratio of the pupal parasitoid Pimpla luctuosa Smith (Hymenoptera: Ichneumonidae: Pimplinae). Test female wasps were simultaneously provided with young and old host pupae of different sizes, and the effects of host age , size and the interaction between the two factors were examined. Both host age and size significantly affected the offspring sex ratio of P. luctosa. The proportions of female offspring produced from hosts increased with host size in both host age classes. Old hosts produced fewer female offspring that did young hosts, however. No significant interactions were detected between host age and size. The results indicated that female P. luctosa responded hosts of different sizes and ages by changing the offspring sex ratio. Besides, the mean sex ratios were highly male-biasted, regaerless of host age. The sex allocation strategy in P. luctuosa is discussed. Factors causing male-biased sex ratios are also discussed.
登録日	2009.04.22
更新日	2022.11.11