Effects of acorn production and mouse abundance on abundance and Borrelia burgdorferi infection prevalence of nymphal Ixodes scapularis ticks.
Effects of acorn production and mouse abundance on abundance and Borrelia burgdorferi infection prevalence of nymphal Ixodes scapularis ticks.
复制标题
橡子产量和小鼠丰度对若虫肩胛硬蜱蜱丰度和伯氏疏螺旋体感染流行率的影响。
DOI：
10.1089/153036601750137688
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Wolff,JO
中科院分区：
文献类型：
--
作者：
Ostfeld,RS;Schauber,EM;Canham,CD;Keesing,F;Jones,CG;Wolff,JO
Risk of exposure to Lyme disease is a function of the local abundance of nymphalIxodesticks that are infected with the etiological agent, the spirocheteBorrelia burgdorferi. We monitored abundance of white-footed mice (the principalB. burgdorferireservoir in the eastern and central United States) and acorns (a critical food resource for mice), andIxodes scapularisticks, as well as ambient temperature (cumulative growing degree days) and growing season precipitation, in a forested landscape of southeastern New York State from 1994 to 2000. We found that acorn production in autumn strongly influenced abundance of white-footed mice the following summer and that abundance of mice in summer, when larval ticks are active, influenced the abundance of infected nymphs the following year. Consequently, the abundance of infected nymphal ticks can be predicted from acorn production 1.75 years earlier. Monitoring of natural fluctuations in acorn production thus supports results of prior acorn addition experiments that were conducted at small spatial scales. Growing degree days and precipitation either had no significant effect on density of nymphs or marginally increased the explanatory power of models that included acorns or mouse density as independent variables. We conclude that, at our study site in New York, the risk of human exposure to Lyme disease is affected by mouse density in the prior year and by acorn production 2 years previously.
