INFLUENCE OF SUPERPARASITISM ON DEVELOPMENT RATE AND ADULT SIZE IN A SOLITARY PARASITOID WASP, APHIDIUS-ERVI
INFLUENCE OF SUPERPARASITISM ON DEVELOPMENT RATE AND ADULT SIZE IN A SOLITARY PARASITOID WASP, APHIDIUS-ERVI
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DOI：
10.2307/2389521
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发表时间：
1992-01-01
影响因子：
5.2
通讯作者：
MACKAUER, M
中科院分区：
文献类型：
--
作者：
BAI, B;MACKAUER, M
1. 我们测试的假设，寄生蜂的孤立物种的过寄生没有健身的后果存活的幼虫。 以二色蚜茧蜂及其寄主豌豆蚜为实验系统，比较了单寄生和多寄生两种方式下的雄蜂成虫干重和产卵至成虫羽化的发育时间. 寄生蜂获得14%以上的干质量（没有增加的发展时间）在过寄生的主机。 研究表明，过寄生蚜虫比单寄生蚜虫和未寄生蚜虫摄食更多的食物，从而使存活的拟寄生蜂幼虫具有更高的生长潜力. 结果是相关的模型的超寄生作为一种适应性策略。
1. We tested the assumption that superparasitism by solitary species of parasitoid wasps has no fitness consequences for the surviving larva. Using Aphidius ervi and its aphid host, Acyrthosiphon pisum, as an experimental system, we compared adult dry mass and development time from oviposition to adult eclosion between male wasps that developed in single- and in superparasitized aphids.2. Parasitoids gained 14% more dry mass (with no increase in development time) in superparasitized hosts. It is suggested that superparasitized aphids have higher growth potential for the surviving parasitoid larva because they ingest more food than single-parasitized and unparasitized aphids, in that order.3. The results are relevant to models of superparasitism as an adaptive strategy.