Nocturnal windborne migration of ground beetles, particularly Pseudoophonus griseus (Coleoptera : Carabidae), in China
文献类型： 外文期刊
作者： Feng, Hong-Qiang 1 ; Zhang, Yun-Hui 2 ; Wu, Kong-Ming 2 ; Cheng, Deng-Fa 2 ; Guo, Yu-Yuan 2 ;
作者机构： 1.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100094, Peoples R China
2.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100094, Peoples R China; Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China
关键词： carabid;flight behaviour;light trapping;nocturnal migration;Pseudoophonus griseus (Panzer);radar observations
期刊名称：AGRICULTURAL AND FOREST ENTOMOLOGY （ 影响因子：2.509； 五年影响因子：2.251 ）
ISSN： 1461-9555
年卷期： 2007 年 9 卷 2 期
页码：
收录情况： SCI
摘要： 1 A network of light-traps, an aerial net carried by kytoon (balloon) and two entomological radars were used to investigate whether ground beetles migrate nocturnally through China. The network-wide, simultaneous sudden increase in light trap catches, and after subsequent decrease, indicated a seasonal long-distance night migration of ground beetles, with Pseudoophonus griseus (Panzer) predominant, in August. 2 Aerial net trapping indicated that carabids were able to ascend to altitudes of at least 200 m and become windborne. Radar observations indicated that the migratory beetles formed high-density layer concentrations at approximately 200-300 m. 3 These concentrations were coincident with the top of the temperature inversion and a wind speed maximum, which suggested that the carabids tended to select warm, fast moving air for their long-distance migration. 4 The ground beetles orientated and displaced towards the downwind direction in southerly winds. Their air speed decreased as the tailwind increased and, thus, migrating beetles appeared to be conserving energy. 5 The mean +/- SD displacement speed (ground speed) and air speed were 6.85 +/- 1.73 m/s (n = 172) and 4.45 +/- 1.54 m/s (n = 172), respectively. The duration of flight, estimated from the variation in area density derived from radar data, was approximately 9-10 h, indicating that the beetles might migrate hundreds of kilometres in a single flight.
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