| 毛颚小卷蛾幼虫空间分布型的研究 |
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| 引用本文： | 刘文爱,范航清.毛颚小卷蛾幼虫空间分布型的研究[J].林业科技开发,2011,25(1):46-48. |
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| 作者姓名： | 刘文爱 范航清 |
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| 作者单位： | 广西科学院广西红树林研究中心,广西,北海,536000 |
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| 基金项目： | 广西国土资源厅“广西红树林虫害专项防治研究”; 广西科学院“红树林海岸景观带破碎对红树林害虫和天敌种群的影响” |
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| 摘 要： | 毛颚小卷蛾幼虫是红树林的灾害性害虫之一,主要危害桐花树(Aegiceras corniculata)。主要应用扩散系数(C)、平均拥挤度(m*)等6种指标研究该虫的空间分布情况。结果表明:毛颚小卷蛾幼虫呈现聚集分布,分布的基本成分是个体群,聚集强度随种群密度的升高而相应增大;钦州康熙岭滩涂外滩植株有虫株率较低(10%以下),中滩25%左右,内滩最高(100%),而北海丹兜和防城港北仑河附近的红树林滩涂,从外滩到内滩有虫株率呈现逐渐降低的趋势;幼虫在10月上旬危害最为严重。
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| 关 键 词： | 红树林 桐花树 毛颚小卷蛾幼虫 空间分布型 |
Spatial distribution of Lasiognatha cellifera Meyrick larva in Avicennia marina |
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| LIU Wen-ai,FAN Hang-qing.Spatial distribution of Lasiognatha cellifera Meyrick larva in Avicennia marina[J].China Forestry Science and Technology,2011,25(1):46-48. |
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| Authors: | LIU Wen-ai FAN Hang-qing |
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| Institution: | LIU Wen-ai,FAN Hang-qing Guangxi Mangrove Research Center,Guangxi Academy of Sciences,Beihai 536000,Guangxi,China |
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| Abstract: | Lasiognatha cellifera Meyrick is one of main pests damaging mangrove in Aegiceras corniculata.A aggregation indices such as diffusion coefficient(C),mean crowding(m*) were used to analyze the spatial distribution of L.cellifera Meyrick.The results showed that L.cellifera Meyrick was aggregately distributed in the mangrove,and the basic distribution component was individual population.Larvae population belonged tointensity dependenttype.The population density was lower in the outside of bench in Qinzhou(belo... |
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| Keywords: | mangrove Aegiceras corniculata Lasiognatha cellifera Meyrick spatial distribution pattern |
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