Climate warming increases biological control agent impact on a non-target species.

Climate warming increases biological control agent impact on a non-target species.
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气候变暖增加了生物防治剂对非目标物种的影响

DOI:
10.1111/ele.12391
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发表时间:
2015-01
期刊:
影响因子:
8.8
通讯作者:
Ding J
Ding J
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Lu X;Siemann E;He M;Wei H;Shao X;Ding J

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气候变化可能改变入侵植物、食草昆虫和本地植物之间的相互作用,从而可能影响生物防治效力和对本地物种的非目标效应。在这里,我们展示了气候变暖如何影响一个多化性引进的生防甲虫对非目标本土植物空心莲子草在中国的影响。在覆盖其全部分布区的纬度梯度上的野外调查中,我们发现金龟子在A.无柄花随温度升高而增加,植物生活史由多年生变为一年生。实验表明,温度升高改变了植物的生活史,增加了昆虫的越冬、危害和对幼苗补充的影响。这些结果表明,变暖可以改变物候期,增加非目标效应的大小和增加非目标效应的发生,甲虫的范围扩大到其他地区,A。无柄发生。这项研究强调了了解气候变化如何影响物种相互作用的重要性,以便将来对入侵物种进行生物控制和保护本地物种。
Climate change may shift interactions of invasive plants, herbivorous insects and native plants, potentially affecting biological control efficacy and non-target effects on native species. Here, we show how climate warming affects impacts of a multivoltine introduced biocontrol beetle on the non-target native plant Alternanthera sessilis in China. In field surveys across a latitudinal gradient covering their full distributions, we found beetle damage on A. sessilis increased with rising temperature and plant life history changed from perennial to annual. Experiments showed that elevated temperature changed plant life history and increased insect overwintering, damage and impacts on seedling recruitment. These results suggest that warming can shift phenologies, increase non-target effect magnitude and increase non-target effect occurrence by beetle range expansion to additional areas where A. sessilis occurs. This study highlights the importance of understanding how climate change affects species interactions for future biological control of invasive species and conservation of native species.
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