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Title: 検疫害虫ミバエ類の原産地における生態特性と種間関係:繁殖過程と寄主選択からの解明
Other Titles: Ecological properties and interspecific relationships of quarantine pests, Bactrocera fruit flies in the original distribution areas: Elucidation from reproductive processes and host plant choices
Authors: 沢田, 裕一
Keywords: ミバエ
B. carambolae
B. papayae
Issue Date: 14-Jun-2018
Abstract: Bactrocera属ミバエ類の野外生態調査の結果、この地域の主要害虫種として、ミカン コミバエ種群の2種、B. papayae(BP)とB. carambolae(BC)を含む5種のミバエ類が特定された。BPとBCの個 体数は、雨季に増加し、乾季に減少すること、その理由として、餌資源量の季節変動と地上徘徊性捕食者の作用 が重要だと推測された。繁殖干渉実験の結果、BCの繁殖成功度はBPの頻度(比率)上昇とともに急激に低下する こと、BC♀の繁殖成功度の低下は、BP♂からの繁殖干渉により、BC♂との交尾成功率の低下によることが明らか になった。     We identified five major pests of Bactrocera fruit flies, including B. papayae(BP) and B. carambolae(BC), on the basis of field censuses conducted in West Java, Indonesia. Population density of both BP and BC exhibited clear seasonal patterns, the sharp increase and decrease in the rainy and dry seasons, respectively, presumably due to the seasonal trend of food resource abundance and of predation by ground-wandering predators. Laboratory experiments on reproductive interference between BC and BP revealed that reproductive success of BC largely dropped with the increasing proportion of BP, and that the reduced reproductive success of BC females was due to mating failure with conspecific males.
Description: 科学研究費助成事業研究成果報告書(研究種目:基盤研究(B)(海外学術調査),研究期間:2013~2017,課題番号:25304048)
NII JaLC DOI: info:doi/10.24795/kakk_sawada_201812
Appears in Collections:科研費報告書

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