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首页> 外文期刊>Canadian Journal of Zoology >Increased prevalence of bot flies (Cuterebra fontinella) on white-footedmice (Peromyscus leucopus) near forest edges
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Increased prevalence of bot flies (Cuterebra fontinella) on white-footedmice (Peromyscus leucopus) near forest edges

机译：在森林边缘附近的白足小鼠（Peromyscus leucopus）上，蝇蝇（Cuterebra fontinella）的患病率增加

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Several studies have suggested that forest edge is preferred habitat for white-footed mice (Peromyscus leucopus). Because previous research has shown that parasitism by bot flies (Cuterebra fontinella) is higher in open areas than in woodlands, lower rates of infestation at woodland edges could partly explain the greater preference for woodland edges by the mice. We recorded the prevalence and load of bot fly larvae in mice trapped along edge-to-interior gradients in four forested areas in east-central Illinois. At all sites the prevalence of bot flies (the proportion of infected adult mice) was greatest near the edge (less than 50 m from the woodland margin), which should reduce, not improve, the quality of edge microhabitats. Mating but flies tend to congregate in open areas, and the higher prevalence of parasitism by bot flies near the forest edge may reflect the greater penetration of light there than in the interior.
机译：多项研究表明，森林边缘是白脚小鼠（Peromyscus leucopus）的首选栖息地。因为先前的研究表明，在开阔地带，小蝇类寄生虫（Cuterebra fontinella）的寄生虫寄生率高于林地，因此林地边缘的虫害发生率较低，可以部分解释小鼠对林地边缘的偏好。我们记录了伊利诺伊州中东部四个森林地区沿边缘到内部的梯度捕获的小鼠中蝇蝇幼虫的患病率和负荷。在所有地点，bot蝇的发生率（受感染的成年小鼠的比例）在边缘附近（距林地边缘不到50 m）最大，这应该减少而不是改善边缘微生境的质量。交配但苍蝇倾向于聚集在开阔地带，在森林边缘附近，由苍蝇引起的寄生虫流行率较高，可能反映那里的光线比内部的穿透力更大。

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