| 陈颖1，王竹红1，黄建1*，康文通2，梁农2，张毅智1.杂色刺桐叶片上刺桐姬小蜂虫瘿的分布与抽样技术[J].植物保护,2010,36(6):45-49. |
| 杂色刺桐叶片上刺桐姬小蜂虫瘿的分布与抽样技术 |
| Distribution and sampling techniques of galls induced by Quadrastichus erythrinae on Erythrina variegata leaves |
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| DOI： |
| 中文关键词: |
| 英文关键词:Erythrina variegate Quadrastichus erythrinae gall aggregating distribution sampling technique |
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| 中文摘要: |
| 本文调查并分析了杂色刺桐（Erythrina variegata Linn.）叶片上刺桐姬小蜂（Quadrastichus erythrinae Kim)虫瘿的分布规律，结果表明：叶片上的虫瘿主要分布于靠近叶柄的主脉两侧下部区域，多以1～2个虫瘿联体的形式存在；杂色刺桐叶片上刺桐姬小蜂虫瘿呈聚集分布，分布形式为负二项分布，分布的基本成分为个体群，且个体群大小随着虫瘿密度的增加而增大；虫瘿具有密度依赖性，聚集是昆虫本身习性和环境共同引起的。根据Iwao的方法，本文还确定了虫瘿最适抽样模型和最适抽样量，并列出了序贯抽样表。 |
| 英文摘要: |
| The distribution of galls induced by Quadrastichus erythrinae Kim on Erythrina variegata Linn. leaves was investigated and analyzed by the distribution parameters. The results indicated that: a. galls on leaves mainly located at the lower parts beside the main vein near the petiole, and the frequency of the galls in one and two galls group accounted for more than 50％; b. the spatial distribution of the galls on leaves was aggregated based on the spatial pattern parameters, and its basic element for distribution was clusters of individuals which increased with the gall density; c. the aggregation degree was dependent on the gall density; d. the aggregation was caused by the environmental conditions and the congregation habit of the insect. The best theoretical sampling model and number were presented in this paper, also with sequential sampling table obtained by the Iwao’s method. |
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