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首页> 外文期刊>Journal of Medical Entomology >Influence of climate on the proportion of Ixodes ricinus nymphs and adults questing in a tick population
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Influence of climate on the proportion of Ixodes ricinus nymphs and adults questing in a tick population

机译：气候对a种群中x虱若虫和成年雄性种群比例的影响

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摘要

We studied the relationship between climate and Ixodes ricinus L. tick behavior by following every day the proportion of ticks questing in a tick population placed in polyamide mesh-delimited arenas in the field. Simultaneously, the phenology of the questing density of nymphs and adults was studied by sampling ticks in a close location. At any time during the year, the proportion of questing adults was significantly higher (mean 24%) than the proportion of questing nymphs (mean 12%). The proportion of questing nymphs and adults decreased stepwise with time. The proportion of. questing adults partially recovered after each decrease. In contrast, the proportion of questing nymphs was strongly reduced during a single short period in June and did not recover even partially. Decrease in the proportion of questing ticks was strongly related either to a peak in saturation deficit or to a drop in maximal relative humidity. No increase in the proportion of questing nymphs was observed in the arenas during autumn, although an autumn peak of nymphs was observed at the sampling location close to the arenas. This suggests that the autumn peak of nymphs observed in nature was due to newly emerged spring-fed larvae and not to reactivated spring active nymphs.
机译：通过每天跟踪放置在聚酰胺网状分隔区域中的tick种群中the的搜寻比例，我们研究了气候与I氏tick行为之间的关系。同时，通过在接近的位置对tick进行采样，研究了若虫和成虫的觅食密度的物候。在一年中的任何时候，寻求成年人的比例（平均24％）都比寻求若虫的比例（平均12％）高得多。追随若虫和成虫的比例随时间逐步降低。比例。每次减少后，成年人都可以部分康复。相反，在六月份的单个短时间内，若虫若虫的比例大大降低，甚至没有部分恢复。搜寻滴答声比例的下降与饱和度不足的峰值或最大相对湿度的下降密切相关。尽管在靠近竞技场的采样位置观察到了若虫的秋季高峰，但秋季在竞技场中未发现若虫的比例增加。这表明在自然界中观察到的若虫的秋天高峰是由于新出现的春季喂养的幼虫，而不是由于活化的春季活跃的若虫。

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