Effects of Detritus on the Mosquito Culex pipiens: Phragmites and Schedonorus (Festuca) Invasion Affect Population Performance
Effects of Detritus on the Mosquito Culex pipiens: Phragmites and Schedonorus (Festuca) Invasion Affect Population Performance
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DOI：
10.3390/ijerph16214118
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发表时间：
2019-10
影响因子：
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通讯作者：
P. Leisnham;Brandon Scott;A. Baldwin;S. LaDeau
中科院分区：
文献类型：
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作者：
P. Leisnham;Brandon Scott;A. Baldwin;S. LaDeau
影响外来蚊子库蚊性能的物种相互作用可能对西尼罗河病毒(WNV)的传播风险产生重要影响。入侵植物可以改变短暂地下池塘的植物群落，从而促进或抵抗淡色隐翅虫的传播。通过改变这些池中碎屑的异地输入。为了验证这一假设，我们结合了对路边雨水沟的现场调查和实验室微观世界实验，在含有入侵芦荟碎屑的系统中检验了淡色隐翅虫的性能与水质之间的关系。特林。Ex Steud.，引种高羊茅Schedonorus arundinaceus(Schreb.)在沟渠中，尖吻海棠的丰度与碎屑种类无关，但雌性尖吻海棠在有高羊茅的沟渠中明显较大，而在有香蒲的沟渠中较小。在分别给予高丽隐翅虫和微囊藻的微宇宙中，也产生了较大和较小的淡色库蚊，但人均种群变化率没有变化。较大的雌性斑潜蝇可能是由于斑潜蝇较快的腐烂速度和微生物食物的增加造成的，但由于污垢和较高的单宁-木质素浓度导致的存活率较低，导致总体种群性能变化不大。体型较大的雌性蚊子被证明具有更大的传播虫媒病毒的潜力。我们的发现表明，在城市短暂的地面池中，由于植物入侵而改变的社区水平的相互作用可能会影响淡色库蚊的适合度，并可能增加西尼罗河病毒的风险。
Species interactions that influence the performance of the exotic mosquito Culex pipiens can have important effects on the transmission risk of West Nile virus (WNV). Invasive plants that alter the vegetation communities of ephemeral ground pools may facilitate or resist the spread of C. pipiens (L.) by altering allochthonous inputs of detritus in those pools. To test this hypothesis, we combined field surveys of roadside stormwater ditches with a laboratory microcosm experiment to examine relationships between C. pipiens performance and water quality in systems containing detritus from invasive Phragmites australis (Cav.) Trin. Ex Steud., introduced Schedonorus arundinaceus (Schreb.) Dumort., or native Juncus effusus L. or Typha latifolia L. In ditches, C. pipiens abundance was unrelated to detritus species but female C. pipiens were significantly larger from ditches with S. arundinaceus and smaller with J. effusus. Larger and smaller C. pipiens were also produced in microcosms provisioned with S. arundinaceus and J. effusus, respectively, yet the per capita rate of population of change did not vary. Larger females from habitats with S. arundinaceus were likely caused by faster decay rates of S. arundinaceus and resultant increases in microbial food, but lower survival as a result of fouling and higher tannin-lignin concentrations resulted in little changes to overall population performance. Larger female mosquitoes have been shown to have greater potential for transmitting arboviruses. Our findings suggest that changed community-level interactions from plant invasions in urban ephemeral ground pools can affect the fitness of C. pipiens and possibly increase WNV risk.