不同抗性品种稻田稻飞虱及其主要捕食性节肢动物生态位研究

基金项目: 致谢：广西农科院植保所黄凤宽副研究员提供了2个抗虫品种,广西大学农学院植物保护专业2000级本科生黄华、吴晓娟协助田间调查,在此表示感谢!

The Niches of Rice Planthopper and Its Major Predatory Arthropod in Different Resistant Paddy Fields

1. Lab of Insect Ecology, South China Agric, Univ, , Guangzhou 510642, China; 2. College of Agricultural, Guangxi Univ, , Nanning 530005, China

摘要: 对3个不同抗稻飞虱品种稻田主要捕食性节肢动物生态位研究结果表明，食虫沟瘤蛛Ulmmeliata insecticepes是早稻田稻飞虱的主要捕食性天敌．空间生态位上2个抗性品种以栉齿锯螯蛛Dyschiriognatha dentata Zhu et Wen宽度最大，感性品种以隐翅甲Staphylinidae最大．中抗品种天敌与稻飞虱的时间生态位以及时间-空间二维生态位重叠明显高于抗虫和感性品种中天敌与稻飞虱的重叠，认为中抗品种捕食性天敌能更有效地控制稻飞虱．
- 抗性品种 /
- 稻飞虱 /
- 捕食性节肢动物 /
- 生态位
Abstract: The niche of major predatory arthropod on different resistant rice planthopper in three paddy fields were studied, the results showed that Ulmmeliata insecticepes was the key predator of rice planthopper in early rice. The spatial niche breadth of Dyschiriognatha dentata on resistant variety was the highest while that of Staphylinidae was the highest on susceptible variety. The temporal and temporal-spatial twodimension niche overlap value of predatory arthropod to rice planthopper on medial resistant variety was higher than that on resistant rice planthopper and susceptible variety. The predatory of medial resistant variety was more effective to control rice planthopper.
- resistant variety /
- rice planthopper /
- predatory arthropod /
- niche