| 春甘蓝田小菜蛾及主要捕食性天敌时空生态位 |
| |
| 引用本文： | 李辉,缪勇,马鑫,黄凯,李宾宾.春甘蓝田小菜蛾及主要捕食性天敌时空生态位[J].植物保护,2015,41(6):88-91. |
| |
| 作者姓名： | 李辉 缪勇 马鑫 黄凯 李宾宾 |
| |
| 作者单位： | 安徽农业大学植物保护学院，合肥 230036 |
| |
| 基金项目： | 国家公益性行业(农业)科研专项(201203038) |
| |
| 摘 要： | 在田间系统调查的基础上,研究了春甘蓝田小菜蛾及主要捕食性天敌的时空生态位。结果表明,小菜蛾的时间生态位宽度较小而空间生态位宽度相对较大,说明小菜蛾种群的发生有高峰期明显和全株为害的特点。小菜蛾的时间动态、空间生态位宽度与种群密度无显著相关性,说明小菜蛾对甘蓝的为害情况比较复杂。田间调查共记录捕食性天敌13种,主要优势种依次为草间钻头蛛、七星瓢虫、血色高亮腹蛛、八斑鞘腹蛛、四点高亮腹蛛和三突花蛛。主要捕食性天敌中,七星瓢虫和三突花蛛与小菜蛾的时空二维生态位重叠度最大,其次为四点高亮腹蛛和血色高亮腹蛛,八斑鞘腹蛛和草间钻头蛛最小。这表明七星瓢虫和三突花蛛对小菜蛾有较好的跟随和潜在控制作用。
|
| 关 键 词： | 小菜蛾 捕食性天敌 时间生态位 空间生态位 春甘蓝 |
| 收稿时间： | 2014/11/7 0:00:00 |
| 修稿时间： | 2015/1/16 0:00:00 |
Spatial and temporal niches of the diamondback moth Plutella xylostella and major predatory enemies in spring cabbage fields |
| |
| Li Hui,Miao Yong,Ma Xin,Huang Kai,Li Binbin.Spatial and temporal niches of the diamondback moth Plutella xylostella and major predatory enemies in spring cabbage fields[J].Plant Protection,2015,41(6):88-91. |
| |
| Authors: | Li Hui Miao Yong Ma Xin Huang Kai Li Binbin |
| |
| Abstract: | Based on a systematic field investigation, the temporal and spatial niches of the diamondback moth (DBM), Plutella xylostella (Linnaeus) and major predatory enemies in spring cabbage fields were studied. The results showed that the diamondback moth had a narrow temporal niche breadth and a relative wide spatial niche breadth. This implied that the incidence of the diamondback moth had the characteristics of obvious peak period and whole plant damage. The temporal and spatial niche breadths of DBM had no significant relativity to its own population densities and this implied that the damage of DBM to cabbage was complicated. Thirteen species of predatory enemies were recorded in the field investigation and the major species were Hylyphantes graminicola, Coccinella septempunctata, Hypsosinga sanguinea, Coleosoma octomaculatum, Hypsosinga pygmaea and Misumenops tricuspidatus. Among the major predatory enemies, C. septempunctata and M. tricuspidatus had the biggest temporal×spatial niche overlap with DBM, followed by H. pygmaea and H. sanguinea, while C. octomaculatum and H. graminicola had the least overlap. This indicated that C. septempunctata and M. tricuspidatus had better potential for control of the DBM than the other predators. |
| |
| Keywords: | Plutella xylostella predatory enemy temporal niche spatial niche spring cabbage |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《植物保护》浏览原始摘要信息 |
| 点击此处可从《植物保护》下载免费的PDF全文 |
|
