Contrasting Role of Temperature in Structuring Regional Patterns of Invasive and Native Pestilential Stink Bugs.
Contrasting Role of Temperature in Structuring Regional Patterns of Invasive and Native Pestilential Stink Bugs.
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DOI：
10.1371/journal.pone.0150649
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Lamp WO
中科院分区：
文献类型：
--
作者：
Venugopal PD;Dively GP;Herbert A;Malone S;Whalen J;Lamp WO
评估和识别入侵物种分布和丰度的空间结构对于揭示潜在的生态过程具有重要意义。在美国造成严重经济损失的入侵性农业害虫Halyomorpha halys目前正在美国和整个欧洲蔓延。通过对8个不同空间尺度上的臭蝽和本土臭虫（中国臭蝽和Euschistus servus）的分布和丰度特征分析，探讨了臭蝽入侵的驱动因素。然后，我们量化了温度、资源可用性、与源种群的距离及其相关空间尺度的相互作用和个体影响。我们使用基于Gabriel图框架的Moran特征向量图来量化美国大西洋中部大豆田之间的空间关系，以调查臭虫。多空间尺度、多变量分析结果表明，温度及其与资源可得性和源种群距离的交互作用在很宽的空间尺度上决定了海葵的分布格局。随着6月平均气温的升高和离源种群距离的增加，黄颡鱼的丰度呈下降趋势。在6月平均气温高于23.5℃的地区未发现大叶蝉。在气候适宜的地区，在250m尺度上，高的halys丰度与发达开阔面积百分比和落叶森林百分比呈正相关。本地臭虫的大尺度模式与森林覆盖率的增加呈正相关，与入侵的halys相比，7月平均温度的增加。我们的研究结果确定了温度在构建halys和本地臭虫的区域模式中的对比作用，同时证明了温度与资源可用性和与源种群的距离对构建halys模式的相互作用。这些结果有助于预测不同地区halys的害虫潜力和农业系统的脆弱性，考虑到气候条件，以及其与资源可用性和源种群距离的相互作用。在气候较为适宜的美国和欧洲部分地区，监测和控制工作可以集中在有落叶林和其他寄主植物的城郊发展地区，同时努力减少繁殖压力。
Assessment and identification of spatial structures in the distribution and abundance of invasive species is important for unraveling the underlying ecological processes. The invasive agricultural insect pest Halyomorpha halys that causes severe economic losses in the United States is currently expanding both within United States and across Europe. We examined the drivers of H. halys invasion by characterizing the distribution and abundance patterns of H. halys and native stink bugs (Chinavia hilaris and Euschistus servus) across eight different spatial scales. We then quantified the interactive and individual influences of temperature, and measures of resource availability and distance from source populations, and their relevant spatial scales. We used Moran’s Eigenvector Maps based on Gabriel graph framework to quantify spatial relationships among the soybean fields in mid-Atlantic Unites States surveyed for stink bugs. Results from the multi-spatial scale, multivariate analyses showed that temperature and its interaction with resource availability and distance from source populations structures the patterns in H. halys at very broad spatial scale. H. halys abundance decreased with increasing average June temperature and distance from source population. H. halys were not recorded at fields with average June temperature higher than 23.5°C. In parts with suitable climate, high H. halys abundance was positively associated with percentage developed open area and percentage deciduous forests at 250m scale. Broad scale patterns in native stink bugs were positively associated with increasing forest cover and, in contrast to the invasive H. halys, increasing mean July temperature. Our results identify the contrasting role of temperature in structuring regional patterns in H. halys and native stink bugs, while demonstrating its interaction with resource availability and distance from source populations for structuring H. halys patterns. These results help predicting the pest potential of H. halys and vulnerability of agricultural systems at various regions, given the climatic conditions, and its interaction with resource availability and distance from source populations. Monitoring and control efforts within parts of the United States and Europe with more suitable climate could focus in areas of peri-urban developments with deciduous forests and other host plants, along with efforts to reduce propagule pressure.