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首页> 外文期刊>Journal of Medical Entomology >Nutrient-dependent reduced growth and survival of larval Culex restuans (Diptera: Culicidae): laboratory and field experiments in Michigan
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Nutrient-dependent reduced growth and survival of larval Culex restuans (Diptera: Culicidae): laboratory and field experiments in Michigan

机译：依赖营养物的幼虫库氏菌减少的生长和存活（双翅目：Cu科）：密歇根州的实验室和田间试验

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摘要

Culex restuans Theobold, a putative vector of West Nile virus among birds in northern North America, also may serve as a bridge vector to mammals. Despite its potential public health importance, little is known about what regulates populations of this species. Mosquitoes generally are subject to both density-dependent reductions in survival and growth and to density-independent limitations on their population abundances. The mechanisms by which density dependence may occur in this species were examined in both field and laboratory studies. Nutrient-dependent reductions in growth were found in field studies. Under laboratory conditions, nutrient levels in larval habitats and total water volume per container contributed to survival and growth of larvae. We related these findings to density-independent changes in available habitat for larval development observed in other studies. These results may suggest a mechanism for patterns of mosquito abundance.
机译：北美北部鸟类中的西尼罗河病毒的推定载体库克斯氏菌Theobold也可以作为哺乳动物的桥梁载体。尽管它具有潜在的公共卫生重要性，但对于如何调节该物种的种群知之甚少。蚊子的生存和生长通常受到密度依赖性的降低，并且种群密度受到密度依赖性的限制。在野外和实验室研究中都检查了这种物种可能发生密度依赖性的机制。在田间研究中发现了营养依赖的生长减少。在实验室条件下，幼虫栖息地的营养水平和每个容器的总水量有助于幼虫的存活和生长。我们将这些发现与其他研究中观察到的幼虫发育可用栖息地的密度无关变化联系起来。这些结果可能表明一种蚊子丰度模式的机制。

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