Measuring Mosquito Diversity Patterns in an Amazonian Terra Firme Rain Forest
Measuring Mosquito Diversity Patterns in an Amazonian Terra Firme Rain Forest
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DOI：
10.1603/me09060
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发表时间：
2010-03-01
影响因子：
2.1
通讯作者：
Luz, S. L. B.
中科院分区：
文献类型：
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作者：
Juliao, G. R.;Abad-Franch, F.;Luz, S. L. B.
我们重新分析了在亚马逊原始雨林的冠层和林下收集的近10700只黄昏和夜间叮咬的雌蚊（库蚊科）的数据集。我们将描述性和假设检验统计数据与物种丰富度和多样性指标相结合，研究垂直生境分层和降雨是否改变了该蚊群的主要生态参数。共记录到31种。与预期相反，寻找寄主的蚊子动物群在林冠层的多样性低于林下层。两种生境的物种丰富度估计值相近，而物种多样性和均匀度估计值较高。垂直分层的12种中只有2种明显喜树，5种偏爱下层生境。雨季蚊虫区系比旱季更为多样。我们提出雌蚊密度和寄主防御行为可能促使寄主通过嗜肢蚊寻找不良的非首选生境。这些结果可能对了解亚马逊森林景观中疟疾/巴西利亚疟原虫和虫媒病毒感染的动态尤为重要。
We reanalyzed a dataset consisting of approximate to 10,700 crepuscular and night-biting female mosquitoes (Culicidae) collected over 12 mo in the canopy and understorey of primary Amazonian rain forest. We investigate whether vertical habitat stratification and rainfall modified major ecological parameters of this mosquito ensemble, combining descriptive and hypothesis-testing statistics with species richness and diversity metrics in the analyses. A total of 31 species was recorded. Contrary to expectations, the host-seeking mosquito fauna was less diverse ill the forest canopy than ill the understorey. In particular, species diversity and evenness wore higher ill understorey samples, whereas species richness estimates were similar in both habitats. Only two out of 1 2 species tested for vertical stratification were clearly acrodendrophilic, and five preferred understorey habitats. The mosquito fauna was more diverse in the rainy than in the dry season. We propose the hypothesis that female mosquito density and host defensive behavior may promote host seeking ill nonpreferred habitats by acrodendrophilic mosquito species. These results may be particularly relevant for understanding the dynamics of Plasmodium malariae/brasilianum and arboviral infections in Amazonian forested landscapes.