Evidence for Reduction of Native Mosquitoes With Increased Expansion of Invasive Ochlerotatus japonicus japonicus (Diptera: Culicidae) in the Northeastern United States
Evidence for Reduction of Native Mosquitoes With Increased Expansion of Invasive Ochlerotatus japonicus japonicus (Diptera: Culicidae) in the Northeastern United States
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DOI：
10.1603/033.047.0106
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发表时间：
2010-01-01
影响因子：
2.1
通讯作者：
Wolfe, Boger J.
中科院分区：
文献类型：
--
作者：
Andreadis, Theodore G.;Wolfe, Boger J.
Ochlerotatus japonicus japonicus (Theobald) 是一种原产于日本、韩国和中国东部的入侵蚊子。该物种于 1998 年首次在美国东北部被发现，并迅速传播到北美东部的大部分地区。除了用过的轮胎外胎，Oc。 j。日本刺参生长在各种人工和天然容器栖息地，特别是沿河床的岩石池中。为了评估 Oc 的入侵成功和影响。 j。 2005 年，我们对整个康涅狄格州的本地集装箱栖息物种、废轮胎处理场和天然岩石池栖息地的蚊子幼虫进行了采样，并将数据与 1987 年和 1999 年的先前调查结果进行了比较。 j。无论周围景观特征如何，刺参都是废轮胎处理场收集的优势种类，占全部幼虫的55.9%。与之前调查的收集品进行比较显示，Oc. 幼虫种群的相对丰度减少了 90%。 triseriatus (Say) 和 Oc. 幼虫种群的显着减少。 atropalpus (Coquillett) 和 Culex Restuans Theobald。奥克。 j。 Oc 也是在岩池栖息地采集到的数量最多的蚊子，占所有采集到的幼虫的近 80%（水温超过 30 摄氏度的情况除外）。这伴随着 Oc 相对丰度的显着下降。 atropalpus 和 Cx。恢复。我们的结论是，Oc。 j。日本刺参是岩石池和轮胎环境中潜在的有效竞争者，并且可能通过种间竞争有限的资源来减少占据这些栖息地的几种本地物种的数量。排除 Oc。 j。来自温水池的日本刺参进一步表明 Oc 可能存在温度障碍。 j。日本刺参的种群可能无法在夏季气温相对较高的美国南部地区定居。
Ochlerotatus japonicus japonicus (Theobald) is an invasive mosquito native to Japan, Korea, and eastern China. The species was first detected in the northeastern United States in 1998 and has rapidly spread throughout much of eastern North America. in addition to used tire casings, Oc. j. japonicus develops in a wide variety of artificial and natural container habitats, especially rock pools along stream beds. In an effort to evaluate the invasion success and impact of Oc. j. japonicus on populations of native container dwelling species, waste tire disposal sites and natural rock pool habitats were sampled for mosquito larvae throughout Connecticut in 2005, and data were compared with results from prior surveys made in 1987 and 1999. Oc. j. japonicus was the predominant species collected at the waste tire disposal sites regardless of surrounding landscape features, accounting for 55.9% of all larvae. A comparison with collections from prior surveys revealed a 90% reduction in the relative abundance of larval populations of Oc. triseriatus (Say) and significant reductions among larval populations of Oc. atropalpus (Coquillett) and Culex restuans Theobald. Oc. j. japonicus was also the most abundant mosquito collected in rock pool habitats, accounting for nearly 80% of all collected larvae, except where water temperatures exceeded 30 degrees C. This was concomitant with significant declines in the relative abundance of Oc. atropalpus and Cx. restuans. We conclude that Oc. j. japonicus is a potentially effective competitor in rock pool and tire environments and may be responsible for reducing populations of several native species occupying these habitats through interspecific competition for limited resources. The exclusion of Oc. j. japonicus from warm water pools further suggests that a temperature barrier may exist for Oc. j. japonicus and that populations may not be able to colonize southern regions of the United States with relatively high summer temperatures.