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DISSERTATION RESEARCH: Intestinal Parasites, Acorn Masts, and Population Dynamics of Peromyscus

论文研究：肠道寄生虫、橡子桅杆和白鼠的种群动态

基本信息

批准号：
0309112
负责人：
Janis Antonovics
金额：
$ 1.19万
依托单位：
University of Virginia Main Campus
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2003
资助国家：
美国
起止时间：
2003-06-15 至 2005-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309112&HistoricalAwards=false
关键词：
DISSERTATION RESEARCH Intestinal Parasites Acorn

项目摘要

Infectious disease may substantially impact the health and stability of natural animal populations. White-footed mouse (Peromyscus leucopus) and deer mouse (P. maniculatus) populations have been found to fluctuate due to peaks in food availability from oak acorn masts. It is likely that intestinal pathogens identified in Peromyscus contribute substantially to population crashes. The goal of this project is to understand how infectious disease can cause animal populations to crash or cycle throughout time. Long-term data on demography and infection will be used to quantify the effect of disease on individual survival and fecundity. In addition, experimental field manipulations will demonstrate the causative effects and interactions of disease and food on population dynamics of Peromyscus. The proposed experiments will help determine how infectious disease impacts natural animal populations. This work is important because for most animal-born disease outbreaks that infect humans we know little about what factors in the animal's ecology drive disease outbreaks. In addition, the general relationship between disease incidence and population abundance has important implications for the emergence of new pathogens in human and animal populations. Finally, this work will help resolve the critical ecological factors that drive disease in natural populations and threaten the survival of animal populations threatened by disease.

传染病可能严重影响自然动物种群的健康和稳定。白足鼠（Peromyscus leucopus）和鹿鼠（P. maniculatus）的种群数量因橡树橡子桅杆上的食物供应高峰而波动。很可能在Peromyscus中发现的肠道病原体对种群崩溃有很大贡献。这个项目的目标是了解传染病如何导致动物种群崩溃或在整个时间周期。人口统计学和感染的长期数据将用于量化疾病对个体生存和生殖力的影响。此外，实验现场操作将证明疾病和食物对Peromyscus种群动态的因果关系和相互作用。拟议的实验将有助于确定传染病如何影响自然动物种群。这项工作很重要，因为对于大多数感染人类的动物源性疾病爆发，我们对动物生态中哪些因素导致疾病爆发知之甚少。此外，疾病发病率和种群数量之间的一般关系对人类和动物种群中新病原体的出现具有重要意义。最后，这项工作将有助于解决导致自然种群疾病和威胁受疾病威胁的动物种群生存的关键生态因素。