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红花指管蚜及其天敌的时间生态位宽度较小而空间生态位宽度较大,说明这些昆虫种群的发生有高峰期明显和全株分布的特点。红花指管蚜的时动空间生态位宽度与种群密度相关显著;天敌中七星瓢虫和草间小黑蛛的时间×空间生态位宽度较大,说明它们发生期较长、活动范围较广;大草蛉、龟纹瓢虫、蚜茧蜂、食蚜蝇、草间小黑蛛和七星瓢虫与红花指管蚜时间生态位重叠度指数和相似性指数均较大。蚜茧蜂、大草蛉、龟纹瓢虫、食蚜蝇和七星瓢虫空间生态位重叠度指数和相似性指数均较大,与红花指管蚜的时间×空间生态位重叠度,大草蛉、龟纹瓢虫、蚜茧蜂、食蚜蝇、七星瓢虫和草间小黑蛛显著较大。红花指管蚜数量与天敌数量的关联度:龟纹瓢虫>草间小黑蛛>七星瓢虫>大草蛉>蚜茧蜂>食蚜蝇>小花蝽>八斑球腹蛛>黑襟毛瓢虫>三突花蛛>异色瓢虫。根据天敌与红花指管蚜时间生态位重叠度、空间生态位重叠度、时间×空间生态位重叠度、关联度总积分排序结果为:龟纹瓢虫=大草蛉>蚜茧蜂>七星瓢虫>食蚜蝇>草间小黑蛛>黑襟毛瓢虫>八斑球腹蛛=三突花蛛>小花蝽>异色瓢虫。
The niche breadth of niche and their natural enemies of S. avenae and its natural enemies were smaller and the niche breadth of space was larger, indicating that the occurrence of these insects had the characteristics of obvious peak period and whole plant distribution. The temporal niche breadth of the dynamic space of the aphid was correlated with the population density. The time × spatial niche breadth of the predatory ladybird and the black grasshopper in the natural enemies was longer, indicating that they had a longer period and a wider range of activities The lag index and similarity index of the time niche in the larvae of A. grandiflora, Propylaea japonica, Aphis gossypii, Hoverfly, Hoverfly and S. aurantiacus were higher. The spatial niche overlap index and similarity index of Aphidius brachygnathus, Siberian tiger beetle, Propylaea japonica, Hoverfly and Coccinella septempunctata were higher than those of the control, , Propylaea japonica, Aphid Braconidae, Hoverfly, Coccinella septempunctata and Herbaceous black spider were significantly larger. The correlation between the number of the aphid and the number of natural enemies was as follows: Propylaea japonica> Meadowlarkia> Coccinella septempunctata> Araceae> Aphidius aphid> Hoverfly> Small bug> Eight-spotted spider> Black placket Mao ladybug> three sudden flower spider> heterochromatic ladybug. According to the natural enemies and safflower aphids time niche overlap degree, spatial niche overlap degree, time × space niche overlap degree, the correlation degree total score sort results are as follows: Propylaea japonica = Scirpus laevigata> Aphididae> Seven-star scoop Insects> Hoverfly> Small black grass spider> Black-breasted ladybug> Eight-spotted spider spider = Bursa> Small-colored bugs> Harmonia axyridis.