| ,2013,苜蓿籽蜂幼虫空间分布型及抽样技术的研究[J].环境昆虫学报,35(1):109-112 |
| 苜蓿籽蜂幼虫空间分布型及抽样技术的研究 |
| Study on spatial distribution model and sampling method of alfalfa seed chalcid, Bruchophagus roddi (Gussakovsky) larvas |
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| DOI： |
| 中文关键词: 苜蓿籽蜂 空间分布型 理论抽样数 |
| 英文关键词:alfalfa seed chalcid spatial distribution pattern theoretical sampling number |
| 基金项目:现代农业产业技术体系建设专项（CARS-35）；公益性行业（农业）项目（201003079） |
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| 中文摘要: |
| 应用多个聚集度指标和Iwao、Taylor回归分析方法，对苜蓿籽蜂Bruchophagus roddi幼虫的空间分布型进行研究。结果表明其空间分布型为负二项分布，个体间相互排斥，其基本成分的空间分布格局为聚集分布，其聚集是由昆虫行为或环境条件引起的，聚集强度随着种群密度的升高而增加。应用 Iwao抽样模型建立了籽蜂幼虫的田间理论抽样数公式：N=(0.5833/m+2.3370)/D∧2。 |
| 英文摘要: |
| The spatial distribution pattern of the alfalfa seed chalcid, Bruchophagus roddi (Gussakovsky) larvae was studied by some aggregation indices, Iwao, Taylor regression analysis methods.The results showed that the spatial distribution pattern of the alfalfa seed chalcid larvae to the negative binomial distribution.Mutual exclusion between the individual, and its basic components of spatial distribution pattern of distribution for the aggregated.Aggregation was caused by the pests behavior or environmental conditions, and the gathered strength increased with increasing population density.Application Iwao sampling model the alfalfa seed chalcid larvae of the field theoretical sampling number formula was N=(0.5833/m+2.3370)/D∧2 |
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