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首页> 外文期刊>Ecological research >Of volcanoes and insects: the impact of the Puyehue-Cordon Caulle ash fall on populations of invasive social wasps, Vespula spp.
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Of volcanoes and insects: the impact of the Puyehue-Cordon Caulle ash fall on populations of invasive social wasps, Vespula spp.

机译：火山和昆虫：Puyehue-Cordon Caulle火山灰的落入对侵入性社会黄蜂Vespula spp的种群造成了影响。

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摘要

Volcanic eruptions have important effects on terrestrial ecosystems. The biotic effects of volcanic ash on insect populations vary from widespread and catastrophic to subtle and localized. Volcanic eruptions may increase insect mortality through the effects of the ash plume, and these vary by taxon or specific biological features. The Puyehue-Cordon Caulle Volcanic Complex is the most recent eruption in Patagonia. Here we explore and describe the effects of the eruption of this volcanic complex on invasive Vespula spp. populations. These wasps are very abundant social hymenoptera that have recently invaded Patagonia. We placed baited traps following the gradient of deposited ash, and revisited them once a week during February to April. No wasps were caught where ash deposition levels exceeded 3.0 cm. The number of wasps caught in sites with minimal ash deposits was similar to that of previous years. In locations where ash layers are intermediate, a few wasps were observed, but only during the peak of wasp abundance. We show that Vespula spp. populations were severely affected by the ash deposition and plume, caused by this eruption. These results show catastrophic effects of ash deposition over a large area, even at great distances from the eruption epicenter. We conclude that wasp mortality explained by the volcanic eruption may reach distant areas, and cause local extinction. In areas where active volcanoes are common, invasive insects may encounter an additional obstacle in their invasion success.
机译：火山喷发对陆地生态系统具有重要影响。火山灰对昆虫种群的生物影响从广泛的灾难性变化到微妙的局部变化。火山喷发可能通过烟灰羽的影响而增加昆虫的死亡率，而火山爆发的效果因分类群或特定生物学特征而异。 Puyehue-Cordon Caulle火山群是巴塔哥尼亚最近的喷发。在这里，我们探索和描述这种火山复合物的喷发对侵入性胡蜂属的影响。人口。这些黄蜂是最近入侵巴塔哥尼亚的非常丰富的社交膜翅目动物。我们根据沉积灰分的梯度放置诱饵阱，并在2月至4月期间每周对其进行一次重新考察。在灰分沉积水平超过3.0 cm的地方没有捕获到黄蜂。在灰烬最少的地点捕获的黄蜂数量与往年相似。在灰烬层居中的位置，观察到了一些黄蜂，但仅在黄蜂丰度达到峰值时出现。我们显示了Vespula spp。喷发造成的灰烬和烟羽严重影响了这些种群。这些结果表明，即使在距喷发震中很远的地方，灰烬在大面积上也具有灾难性的影响。我们得出的结论是，由火山喷发解释的黄蜂死亡率可能到达遥远地区，并导致局部灭绝。在活火山很常见的地区，入侵昆虫可能会在入侵成功中遇到其他障碍。

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  • 来源
    《Ecological research》 |2013年第2期|199-205|共7页
  • 作者

    M. Masciocchi; A. J. Pereira; M. V. Lantschner; J. C. Corley;

  • 作者单位

    CONICET, Grupo de Ecologia de Poblaciones de Insectos, INTA EEA Bariloche, 8400 Bariloche, Argentina,INTA EEA Bariloche, 8400 Bariloche, Argentina;

    CONICET, Grupo de Ecologia de Poblaciones de Insectos, INTA EEA Bariloche, 8400 Bariloche, Argentina;

    CONICET, Grupo de Ecologia de Poblaciones de Insectos, INTA EEA Bariloche, 8400 Bariloche, Argentina;

    CONICET, Grupo de Ecologia de Poblaciones de Insectos, INTA EEA Bariloche, 8400 Bariloche, Argentina;

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  • 正文语种 eng
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  • 关键词

    yellowjackets; insects; exotic; ash deposition; patagonia; argentina;

    机译：黄夹克昆虫;异国情调灰分沉积巴塔哥尼亚阿根廷;

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