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首页> 外文期刊>Journal of Medical Entomology >Effect of population structure and size on aggregation behavior of Cimex lectularius (Hemiptera: Cimicidae)
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Effect of population structure and size on aggregation behavior of Cimex lectularius (Hemiptera: Cimicidae)

机译：种群结构和大小对Cimex lectularius（Hemiptera：Cimicidae）聚集行为的影响

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摘要

The bed bug, Cimex lectularius L. (Hemiptera: Cimicidae), occurs in aggregations until the conditions are no longer beneficial, leading to dispersal. Active and passive bed bug dispersal causes migrations from main aggregations either within a room, from room to room within a building, or from building to building. Because bed bug movement is an important factor in the spread of infestations, we wanted to determine how population structure and size affect bed bug aggregations. Engorged bed bugs were placed in glass petri dish arenas at varying densities, sex ratios, and population compositions. Nymphs had a high tendency to aggregate, varying between 94 and 98%, and therefore were not the likely dispersal stage of the bed bug. At densities of 10 and 40 adults at a 1:1 sex ratio, there were significantly more lone females than lone males. When the population composition was varied, the percentage of lone females was significantly higher than that of males and nymphs at population compositions of 40 and 80% adults. When the sex ratio of adults was varied, there were significantly more lone females than males in arenas with 20, 50, and 80% males. Females, being found away from aggregations significantly more often than any other life stage, are potentially the dispersal stage of the bed bug. Active female dispersal away from main aggregations can potentially lead to treatment failures and should be taken into account when using control methods.
机译：臭虫Cimex lectularius L.（Hemiptera：Cimicidae）以聚集的形式出现，直到条件不再有利，导致扩散。主动和被动臭虫的扩散会导致从房间内的主要聚集体迁移到建筑物中的各个房间，也可能导致建筑物之间的迁移。由于臭虫的移动是侵扰传播的重要因素，因此我们想确定种群结构和大小如何影响臭虫的聚集。将饱足的臭虫以不同的密度，性别比和种群组成放在玻璃培养皿中。若虫具有很高的聚集趋势，介于94％和98％之间，因此不是臭虫的可能扩散阶段。以10：40的成年人和1：1的性别比，单身女性比单身男性明显多。当人口组成发生变化时，在40％和80％成年人口组成下，独居女性的百分比显着高于男性和若虫的百分比。当成年人的性别比例发生变化时，竞技场中的孤独女性明显多于男性，其中男性为20％，50％和80％。女性被发现远离聚集体的频率远高于其他任何生命阶段，可能是臭虫的传播阶段。主动将雌性驱散远离主要聚集体可能会导致治疗失败，因此在使用控制方法时应予以考虑。

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