Polymodal emergence pattern and parasitoid composition of Asteralobia sasakii (Monzen) (Diptera: Cecidomyiidae) on Ilex crenata and I. integra (Aquifoliaceae)
Polymodal emergence pattern and parasitoid composition of Asteralobia sasakii (Monzen) (Diptera: Cecidomyiidae) on Ilex crenata and I. integra (Aquifoliaceae)
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Asteralobia sasakii (Monzen)（双翅目： Cecidomyiidae）在 Ilex crenata 和 I. integra（Aquifoliaceae）上的多峰羽化模式和寄生蜂组成
DOI：
10.1303/aez.2003.493
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发表时间：
2003
影响因子：
1.3
通讯作者：
H. Amano
中科院分区：
文献类型：
--
作者：
K. Tabuchi;H. Amano
在瘿蚊Asteralobia sasakii的种群中，我们发现了进入长时间滞育的个体。为了解释这种滞育的适应意义，我们对该虫的生活史进行了研究。sasakii因寄生虫攻击而受到调查。对两种寄主植物钝齿冬青（Ilex crenata）和冬青（I. integra in central中部Honshu本州，Japan日本.大多数蠓为一化性，仅在一个冬季以老熟幼虫形式越冬。在岛上。integra，部分个体滞育在第一个阶段，并度过两个或两个以上的冬天，因此，总的出现模式是一个多模态模式。延长滞育的优势尚不清楚。异时隔离被发现之间的两个主机相关的人口的A。佐佐木在外地。两个种群的蠓类寄生蜂种类组成也不同。我们的研究结果表明，A. sasakii属于两个不同的生物物种。
In a population of the gall midge Asteralobia sasakii, we discovered individuals that entered a prolonged diapause. To interpret the adaptive significance of this prolonged diapause, the life history of A. sasakii was investigated in relation to parasitoid attacks. The survey was conducted on two host plants, Ilex crenata and I. integra in central Honshu, Japan. The majority of midges were univoltine and spent only one winter as mature larvae. On I. integra, some individuals diapaused in the first stadium and spent two or more winters, so that the total emergence pattern was a polymodal pattern. The advantage of the prolonged diapause was unclear. Allochronic isolation was found between the two host-associated populations of A. sasakii in the field. The two populations of midges also differed in the species composition of parasitoids. Our results suggest that the two populations of A. sasakii belong to two distinct biological species.