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首页> 外文期刊>Journal of Forest Science >Changes in the abundance of Melolontha hippocastani Fabr. and Melolontha melolontha (L.) (Coleoptera: Scarabeidae) in the Czech Republic in the period 2003–2009
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Changes in the abundance of Melolontha hippocastani Fabr. and Melolontha melolontha (L.) (Coleoptera: Scarabeidae) in the Czech Republic in the period 2003–2009

机译：河鲈瓜的丰度变化。和捷克共和国的Melolontha melolontha（L。）（鞘翅目：Scarabeidae）在2003-2009年期间

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摘要

In the period between 2003 and 2009 we evaluated the abundance of adults of Melolontha hippocastani Fabr. and Melolontha melolontha (L.) cockchafers in four forest regions of the Czech Republic. During this period each of the evaluated localities was hit twice by heavy swarming. The course of swarming, species composition, abundance of the respective tribe, sex ratio during swarming and the correlation between the course of swarming and average daily temperature were monitored by means of a light trap, an automatic meteorological station and observations in the open space; the data were represented in the form of graphs. We evaluated how the trend of the abundance of the particular species developed in the respective localities in order to work out a more specific prediction of the occurrence of the cockchafer in subsequent years and the extent of damage caused by the grubs to forest plantations. Research will continue in 2010–2011.
机译：在2003年至2009年期间，我们评估了Melolontha hippocastani Fabr成年人的数量。和捷克共和国四个森林地区的Melolontha melolontha（L.）金龟子。在此期间，每个被评估的地点都被大批蜂群击中两次。通过集光器，自动气象站和在开放空间中的观测情况，监测了成群的过程，物种组成，各个部落的丰度，成群期间的性别比以及成群的过程与日平均温度之间的相关性。数据以图形的形式表示。我们评估了各个地区特定物种的丰度趋势，以便对随后几年金龟子的发生以及by对森林人工林造成的破坏程度做出更具体的预测。研究将在2010-2011年继续进行。

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