Myers Judith H, Campbell Barbara J
Institute of Animal Resource Ecology, University of British Columbia, 2075 Westbrook Place, V6T 1W5, Vancouver, B.C., Canada.
Department of Plant Science, University of British Columbia, 2075 Westbrook Place, V6T 1W5, Vancouver, B.C., Canada.
Oecologia. 1976 Mar;24(1):7-20. doi: 10.1007/BF00545484.
Theoretical predictions from a simulation model of insect distributions and dispersal among isolated food plants have been tested with data gathered from 13 Cinnabar moth populations. Agreement with the predictions was good. Egg batch size was equal to or slightly larger than the number which could be supported by the average food plant. Egg batch distribution was more clumped when density was high and when egg batch size was small relative to food plant size. The tendency for larval dispersal was lower in populations in areas where plants were widely spaced. These findings indicate that the Cinnabar moth has the genetic or phenotypic flexibility to adjust egg batch size, egg distribution, and larval dispersal to characteristics of the habitat. A hypothesized model is proposed to describe the interactions between larval dispersal, food plant response to defoliation, and population fluctuations for the Cinnabar moth and its food plant, tansy ragwort.
从昆虫在孤立食草植物间分布和扩散的模拟模型得出的理论预测，已通过从13个朱砂蛾种群收集的数据进行了检验。预测结果与数据吻合良好。卵块大小等于或略大于平均食草植物所能支撑的数量。当密度较高且卵块大小相对于食草植物大小较小时，卵块分布更为集中。在植物间距较大地区的种群中，幼虫扩散的趋势较低。这些发现表明，朱砂蛾具有遗传或表型灵活性，能够根据栖息地特征调整卵块大小、卵的分布以及幼虫扩散。提出了一个假设模型来描述朱砂蛾及其食草植物——欧洲千里光——幼虫扩散、食草植物对落叶的反应以及种群波动之间的相互作用。
Zotero 插件