...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Insect Science >Projecting Distribution of the Overwintering Population of Sogatella furcifera (Hemiptera: Delphacidae), in Yunnan, China With Analysis on Key Influencing Climatic Factors
【24h】

Projecting Distribution of the Overwintering Population of Sogatella furcifera (Hemiptera: Delphacidae), in Yunnan, China With Analysis on Key Influencing Climatic Factors

机译：云南云南虎尾草越冬种群的预测分布及其主要气候影响因素分析

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Sogatella furcifera (Horváth) is the most threatening migratory rice pest in Yunnan, China. S. furcifera overwinters in low-?altitude basins and valleys in southern Yunnan and migrates northward in spring and summer of the following year, causing serious damage during migration. The overwintering distribution, areas, and spatial pattern of S. furcifera are relevant to the migration and outbreak of this pest. Based on a 4-yr field survey (2010–2013), this study projected areas suitable for S. furcifera to overwinter using a species distribution model, and analyzed the key influencing climatic factors using principal component analysis (PCA) and ecological niche factor analysis (ENFA). Our field survey showed that the northern latitudinal- and upper elevation limits of overwintering S. furcifera was 25.4° N and 1,608?m in western Yunnan and 24.2° N and 1,563?m in eastern Yunnan. The species distribution model produced a fragmented distribution pattern, with most of which in western Yunnan and only a few in eastern Yunnan. The PCA and ENFA analyses showed that the mean temperature of the driest quarter and the precipitation of the coldest quarter significantly influenced the distribution of S. furcifera in winter. The results suggested that the complex topography, spatial differences in winter temperatures, and host availability altogether determined the distribution of overwintering S. furcifera. Compared with previous surveys, the northern latitudinal- and upper elevation limits of overwintering S. furcifera were higher, while the population became rarer in some suitable areas due to change of farmland utilization in winter and possibly climate change.
机译：Sogatella furcifera（Horváth）是中国云南最具威胁性的迁徙水稻害虫。 S. furcifera在云南南部的低海拔盆地和山谷越冬，并于次年的春季和夏季向北迁移，在迁移过程中造成了严重破坏。 S. furcifera的越冬分布，面积和空间格局与该害虫的迁移和爆发有关。基于一项为期4年的实地调查（2010-2013年），本研究使用物种分布模型预测了适合于S. furcifera越冬的区域，并使用主成分分析（PCA）和生态位因子分析来分析影响气候的关键因素。 （ENFA）。我们的实地调查表明，越冬的北纬和高海拔在云南西部为25.4°N和1,608？m，在云南东部为24.2°N和1,563？m。物种分布模型产生了一个分散的分布模式，其中大部分分布在云南西部，而少数分布在云南东部。 PCA和ENFA分析表明，最干燥的四分之一的平均温度和最冷的四分之一的降水显着影响冬季S. furcifera的分布。结果表明，复杂的地形，冬季温度的空间差异以及寄主的可用性共同决定了越冬的S. furcifera的分布。与以前的调查相比，越冬的S. furcifera的北纬和较高海拔较高，而由于冬季农田利用的变化以及可能的气候变化，一些适宜地区的人口变得稀少。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号