Rapid impact of Impatiens glandulifera control on above- and belowground invertebrate communities
Rapid impact of Impatiens glandulifera control on above- and belowground invertebrate communities
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凤仙花控制对地上和地下无脊椎动物群落的快速影响
DOI：
10.1111/wre.12454
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发表时间：
2020
期刊：
影响因子：
1.7
通讯作者：
Wood S
中科院分区：
文献类型：
--
作者：
Wood S
一年生植物凤仙花（喜马拉雅香脂）是不列颠群岛最广泛的入侵性非本地杂草。手动控制广泛使用，但成本高、费力。最近，已经尝试使用锈菌 Puccinia komaroviivar.glanduliferae 进行生物防治。我们设计了一项实验来评估这些控制方法对与未管理和未入侵栖息地相关的无脊椎动物群落的影响，并确定菌根接种是否有助于这些群落的控制后恢复。将六十块入侵的和二十块未入侵的田间土块移植到实验地点，其中一半的土块中添加了菌根接种物。对20个受侵区分别进行生物防治和机械防治；剩下的二十个被入侵的街区完好无损。在生长季节结束时从块中收集地上和地下无脊椎动物样本。总体而言，地上无脊椎动物丰度随着 I 的去除而增加。 腺体和几个群体在一个生长季节内表现出恢复的迹象。机械控制的效果在地下无脊椎动物中变化更大。生物控制不会影响地上无脊椎动物的丰度，但会导致地下跳虫种群的大量增加。我们的实验表明机械去除 I。 腺体能引起无脊椎动物丰度的快速增加，并且它的生物控制是无脊椎动物。 komaroviivar.glanduliferae 也有可能使本地无脊椎动物群落受益。
The annual plantImpatiens glandulifera(Himalayan balsam) is the most widespread invasive non‐native weed in the British Isles. Manual control is widely used, but is costly and laborious. Recently, biological control using the rust fungusPuccinia komaroviivar.glanduliferaehas been trialled. We designed an experiment to assess the impact of these control methods on invertebrate communities in relation to unmanaged and uninvaded habitats, and to determine whether mycorrhizal inoculation aided post‐control recovery of these communities. Sixty invaded and twenty uninvaded field soil blocks were transplanted to the experiment site, where a mycorrhizal inoculum was added to half of all blocks. Biological and mechanical control treatments were applied to twenty invaded blocks independently; the twenty remaining invaded blocks were left intact. Above‐ and belowground invertebrate samples were collected from the blocks at the end of the growing season. Overall, aboveground invertebrate abundance increased with the removal ofI. glandulifera, and several groups showed signs of recovery within one growing season. The effect of mechanical control was more variable in belowground invertebrates. Biological control did not affect aboveground invertebrate abundance but resulted in large increases in populations of belowground Collembola. Our experiment demonstrates that mechanical removal ofI. glanduliferacan cause rapid increases in invertebrate abundance and that its biological control withP. komaroviivar.glanduliferaealso has the potential to benefit native invertebrate communities.