| 葛藤天敌紫茎甲幼虫空间分布研究 |
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| 引用本文： | 李建丰,田明义,古德就.葛藤天敌紫茎甲幼虫空间分布研究[J].昆虫天敌,2003,25(3):125-129. |
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| 作者姓名： | 李建丰 田明义 古德就 |
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| 作者单位： | [1]广东省植物保护总站，广州510500 [2]华南农业大学昆虫生态研究室，广州510642 |
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| 基金项目： | 中美合作课题“昆虫对野葛控制作用研究”资助 ( 1 999- 2 0 0 0 ) |
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| 摘 要： | 本文研究了葛藤天敌紫茎甲Sagra femorata Lichtenstein的空间水平分布和垂直分布，结果表明：(1)紫茎甲幼虫在水平呈聚集分布，基本成分是个体群，且具聚集度对密度的依赖性，幼虫田间理论抽样公式N=(3．3401／M^ 0．5147])／D^2；(2)紫茎甲幼虫垂直分布符合负二项分布和核心分布。
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| 关 键 词： | 葛藤 天敌 紫茎甲 幼虫 空间分布 豆科 |
| 文章编号： | 1001-6155(2003)01-125-05 |
THE SPATIAL DISTRIBUTION OF LARVAE OF PURPLE STEM BEETLE SAGRA FEMORATA LICHTENSTEIN ON KUDZU |
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| LI Jianfeng{,},TIAN Mingyi,GU Dejiu.THE SPATIAL DISTRIBUTION OF LARVAE OF PURPLE STEM BEETLE SAGRA FEMORATA LICHTENSTEIN ON KUDZU[J].Natural Enemies of Insects,2003,25(3):125-129. |
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| Authors: | LI Jianfeng{ } TIAN Mingyi GU Dejiu |
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| Institution: | LI Jianfeng+{1,2},TIAN Mingyi,GU Dejiu |
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| Abstract: | The research on the level and vertical spatial distribution of the purple stem beetle larvae indicated that(l)the level spatial distribution is aggregating and the basic component of distribution is colony. There is a correlation between the aggregating intensity and the population density. The sampling equation is as follows:N=(3.3401/M+0.5147)/D+2;(2)the vertical spatial distribution is not only nucleus but also negative binomial distribution. |
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| Keywords: | Sagra femorata Lichtenstein spatial distribution sampling model |
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