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首页> 外文期刊>Journal of Stored Products Research >Geostatistical analysis of adult Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) in wheat stored at constant temperatures.
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Geostatistical analysis of adult Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) in wheat stored at constant temperatures.

机译：成年小麦在恒温条件下贮藏的成虫的地理统计分析。（C.optera：Bostrichidae）

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摘要

Insect monitoring and sampling programmes are used in the stored grains industry for the detection and estimation of insect pests. At the low pest densities dictated by economic and commercial requirements, the accuracy of both detection and abundance estimates can be influenced by variations in the spatial structure of pest populations over short distances. Geostatistical analysis of Rhyzopertha dominica populations in 2-dimensions showed that, in both the horizontal and vertical directions and at all temperatures examined, insect numbers were positively correlated over short (0-5 cm) distances, and negatively correlated over longer (>=10 cm) distances. Analysis in 3 dimensions showed a similar pattern, with positive correlations over short distances and negative correlations at longer distances. At 35 degrees C, insects were located significantly further from the grain surface than at 25 and 30 degrees C. Dispersion metrics showed statistically significant aggregation in all cases. This is the first research using small sample units, high sampling intensities, and a range of temperatures, to show spatial structuring of R. dominica populations over short distances. This research will have significant implications for sampling in the stored grains industry.
机译：昆虫监测和采样程序在谷物储藏行业中用于检测和评估害虫。在经济和商业要求所决定的低虫害密度的情况下，短距离内虫害种群空间结构的变化会影响检测和丰度估计的准确性。在二维上对 Rhyzopertha dominica 种群的地统计学分析表明，在水平和垂直方向以及所考察的所有温度下，昆虫的数量在短距离（0-5厘米）内均呈正相关，而在负方向上呈负相关。在更长的距离（> = 10 cm）上相关。 3个维度的分析显示出相似的模式，短距离呈正相关，长距离呈负相关。在35摄氏度时，昆虫的位置比在25摄氏度和30摄氏度时更远离谷物表面。在所有情况下，色散指标均显示统计学上显着的聚集。这是首次使用小样本单位，高采样强度和一定温度范围的研究，以显示 R的空间结构。短距离的多米尼加人口。这项研究将对储粮行业的采样产生重大影响。

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