| 湖南地区桑园害虫-天敌群落结构及季节动态研究 |
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| 引用本文： | 李章宝,唐汇清,艾均文,仰勇,刘昌文,何行健.湖南地区桑园害虫-天敌群落结构及季节动态研究[J].蚕业科学,2006,32(3):312-319. |
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| 作者姓名： | 李章宝 唐汇清 艾均文 仰勇 刘昌文 何行健 |
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| 作者单位： | 湖南省蚕桑科学研究所,澧县,415500;湖南省蚕桑科学研究所,澧县,415500;湖南省蚕桑科学研究所,澧县,415500;湖南省蚕桑科学研究所,澧县,415500;湖南省蚕桑科学研究所,澧县,415500;湖南省蚕桑科学研究所,澧县,415500 |
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| 摘 要： | 基于对湖南地区桑园害虫-天敌群落的系统调查,应用群落参数和系统聚类的方法分析了桑园害虫-天敌群落结构及季节动态。桑园害虫-天敌群落多样性指数全年存在较大的差异,均匀度指数也极不一致,害虫亚群落一直保持很高的物种丰富度和群落生态优势度,少数几种害虫的种群优势度特别大。桑园害虫-天敌群落还呈现明显的季节消长规律,全年基本上呈单峰曲线,与月均温度曲线基本一致,且与桑叶采伐、农药治虫、月降雨量等密切相关,并表现出天敌-害虫-桑树之间明显的追随现象。桑园害虫-天敌群落季节动态可分为:越冬期、活跃期、波动期和过渡期4个阶段。
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| 关 键 词： | 桑树 害虫 天敌 季节动态 群落结构 |
| 文章编号： | 0257-4799(2006)03-0312-08 |
| 修稿时间： | 2006年1月13日 |
Studies on the Community Structures and Seasonal Dynamics of Mulberry Insect Pest-natural Enemies |
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| LI Zhang-Bao,TANG Hui-Qing,AI Jun-Wen,YANG Yong,LIU Chang-Wen,HE Xing-Jian.Studies on the Community Structures and Seasonal Dynamics of Mulberry Insect Pest-natural Enemies[J].Acta Sericologica Sinica,2006,32(3):312-319. |
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| Authors: | LI Zhang-Bao TANG Hui-Qing AI Jun-Wen YANG Yong LIU Chang-Wen HE Xing-Jian |
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| Abstract: | Based on the systematic surveys of mulberry in Hunan region,the community structures and seasonal dynamics of mulberry insect pest-natural enemies were analyzed by the methods of community parameters and systematic cluster.The community diversity index and community evenness index of mulberry pest-natural enemies were greatly differ from months.Mulberry pest sub-communities always remained in very high level of species abundance and predominance of community zoology in the whole year.A few of pests showed distinct predominance.The amount and species of mulberry pests and natural enemies also revealed the obvious seasonal ebb and flow law,basically presenting a single-aped curve in the whole year,in accordance with the curve of month-average temperature.And it correlated to the plucking of mulberry leaves,pesticide application,month-rainfall,and so on,representing the obvious pursuing phenomenate among mulberry-pest-natural enemies.The seasonal dynamics of mulberry insect pest-natural enemies were divided into four stages: rest,activity,fluctuating and transition period. |
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| Keywords: | Mulberry Pest Natural enemy Seasonal dynamics Community structure |
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