The structure of a leafminer–parasitoid community
The structure of a leafminer–parasitoid community
复制标题
潜叶蝇-寄生蜂群落的结构
DOI：
10.1046/j.1365-2656.2000.00390.x
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发表时间：
2000
影响因子：
4.8
通讯作者：
H. Godfray
中科院分区：
文献类型：
--
作者：
A. Rott;H. Godfray
总结
1. 在英格兰南部的一个地点构建了定量食物网，描述了叶蛾属（Gracillariidae）及其寄生蜂的群落。
2. 由四种树种培育出 12 种叶藻。这些飞蛾受到 27 种膜翅目寄生蜂的攻击。
3.在两年内为连续的蛾子世代构建了四张网。建立了一个摘要网络，并对以地雷数量和招募下一代的女性数量表示的网络进行了比较。
4. 所有寄主和大多数寄生蜂均在第一年被记录，但在整个采样期间发现了新的寄主-寄生蜂关联。地雷和寄生蜂的多样性在各代之间是相似的。
5.寄生蜂群落结构受寄主植物影响较大。
6. 通过构建定量寄生蜂重叠图来评估宿主之间潜在间接相互作用的程度。所使用的影响力衡量的是一个物种作为攻击另一物种的寄生蜂来源的重要性。明显竞争的最大潜力是攻击同一植物物种的宿主物种之间。
Summary
1. Quantitative food webs were constructed describing the community of leafmining moths in the genus Phyllonorycter (Gracillariidae) and their parasitoids at a site in southern England.
2. Twelve species of Phyllonorycter were reared from four species of tree. The moths were attacked by 27 species of hymenopterous parasitoids.
3. Four webs were constructed for successive moth generations over 2 years. A summary web was built and a comparison made between webs expressed in terms of number of mines and number of females recruiting to the next generation.
4. All hosts and most parasitoids were recorded in the first year, but new host–parasitoid associations were discovered throughout the sampling period. The diversity of mines and parasitoids was similar across generations.
5. The structure of the parasitoid community was strongly influenced by the host plant.
6. The extent of potential indirect interactions between hosts was assessed by constructing quantitative parasitoid overlap diagrams. The measure of influence used was the importance of one species as a source of parasitoids attacking the other. The greatest potential for apparent competition was between species of host attacking the same species of plant.