DEVELOPMENT AND MORTALITY OF IXODES DAMMINI

莱姆病现在是美国最常见的蜱传播疾病 States.目前，疾病预防主要集中在教育方面 程序和个人使用杀螨剂和驱虫剂的衣服。一 还提出了许多其他策略，其中许多涉及 试图减少蜱虫数量。然而，这一努力并没有 意味着向前走。几种蜱虫的管理策略 人类和家畜的传染病受益于一个 关于蜱类生态学的大量理论文献 涉案一个可比较的文献，硬蜱dammini，蜱媒的 莱姆病，尚未存在，这妨碍了先验评价 合理的控制策略。 我们建议建立一个数学模型的种群生物学 I. dammini。 这个模型是构建一个有用的 莱姆病流行病学模型，用于 评估和制定疾病控制战略。建模 一个过程是基于对某些关键生命表的测量 参数 我们建议测量卵，幼虫， 在实验室和野外对饥饿和饥饿的成虫进行了研究。 我们还建议审查监管的假定机制， 蜱虫种群密度 该模型的正式结构将基于 阶段性发育和存活的实验室测量。 第一轮实地研究将用于修改正式的 结构，使其更接近地模仿现场的事件。第二 一轮实地研究将用于文本的适当性模型， 推导

Lyme disease is now the most common tick borne disease in the United States. Currently, disease prophylaxis has centered mainly on education programs and the personal use of acaricides and repellents on clothing. A number of other strategies have been suggested, many of them involving attempts to reduce tick population abundance. However, the effort is by no means straight forward. Strategies for the management of several tick borne diseases on man and domestic animals benefit from the insights of a considerable theoretical literature on the ecology of the tick species involved. A comparable literature for Ixodes dammini, the tick vector of Lyme borreliosis, does not yet exist and this hampers a priori evaluation of plausible control strategies. We propose to construct a mathematical model for the population biology of I. dammini. This model is the first and essential step in the construction of a useful model for the epizootiology of Lyme borreliosis to be used in the evaluation and development of disease control strategies. The modelling process is predicated upon the measurement of certain critical life-table parameters. We propose to measure the development and mortality of eggs, larvae, nymphs and unfed adults in the laboratory and in the field. We further propose to examine putative mechanisms for the regulation of tick population density. The formal structure of the model will be based on the outcome of the laboratory measures of stage development and survival. The first round of field studies will be used to amend that formal structure so that it more closely mimics events in the field. the second round of field studies will be used to text the adequacy of the model so derived.