Environmental variables serve as predictors of the exotic and invasive Asian longhorned tick (Haemaphysalis longicornis Neumann): an approach for targeted tick surveillance

Since the 2017 discovery of established populations of the Asian longhorned tick, (Haemaphysalis longicornis Neumann) in the United States, populations continue to be detected in new areas. For this exotic and invasive species, capable of transmitting a diverse repertoire of pathogens and blood-feeding on a variety of host species, there remains a lack of targeted information on how to best prepare for this tick and understand when and where it occurs. To fill this gap, we conducted two years of weekly tick surveillance at four farms in Tennessee (three H. longicornis-infested and one without) to identify environmental factors associated with each questing life stage, to investigate predictors of abundance, and to determine the likelihood of not collecting ticks at different life stages. A total of 46,770 ticks were collected, of which 12,607 H. longicornis and five other tick species were identified. Overall, abundance of H. longicornis was associated with spring and summer seasons, fo...自2017年在美国发现长角血蜱（Haemaphysalis longicornis Neumann）的定殖种群以来，该外来入侵蜱类的分布范围持续在新区域被监测到。作为一种可传播多种病原体、可寄生于多种宿主吸血的外来入侵物种，目前仍缺乏针对性信息以指导其防控准备，并明确其发生的时间与空间规律。为填补这一研究空白，我们在田纳西州的四个农场（其中3个已被长角血蜱侵染，1个未受其侵染）开展了为期两年的每周蜱类监测工作，旨在明确与各寻宿主生活阶段相关的环境影响因子，探究种群丰度的预测因子，并确定不同生活阶段未采集到蜱类的概率。本次监测共采集到46770只蜱类，经鉴定包含12607只长角血蜱以及另外5种蜱类。总体而言，长角血蜱的种群丰度与春夏季显著相关，……