环境因素与种内竞争对捕食性瓢虫捕食功能反应的影响 Click here to download the full text Citation：李东育,王文莉,徐昕童,郭若水,依里帆·艾克拜尔江,刘怀.环境因素与种内竞争对捕食性瓢虫捕食功能反应的影响.Journal of Plant Protection,2026,53(2):537-546 Hits: Download times: Author Name Affiliation E-mail Li Dongyu  College of Plant Protection, Southwest University, Chongqing 400715, China Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Wang Wenli  Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Xu Xintong  Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Guo Ruoshui  Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Akberjan Erfan  Xinjiang Administration Center of West Tianshan National Nature Reserve, Yini 835000, Xinjiang Uygur Autonomous Region, China    Liu Huai  College of Plant Protection, Southwest University, Chongqing 400715, China  liuhuai@swu.edu.cn  中文摘要:为系统探究捕食性瓢虫在不同条件下对蚜虫的捕食能力与控害潜力的差异，通过室内试验测定不同蚜虫种群密度、环境温度、瓢虫密度梯度条件下捕食性瓢虫对蚜虫的捕食情况，并利用Holling圆盘方程和干扰与竞争模型对分析结果进行拟合。结果表明：异色瓢虫Harmonia axyridis对棉蚜Aphis gossypii、大豆蚜Aphis glycines、槐蚜Aphis sophoricola以及白杨毛蚜Chaitophorus populeti的捕食功能反应均符合Holling Ⅱ型，其对白杨毛蚜的捕食能力与控害能力最强，理论日最大捕食量为500.00头，而对槐蚜的控害能力相对最弱，理论日最大捕食量仅为90.91头。异色瓢虫对大豆蚜的捕食能力在21～33℃范围内随温度升高而增强，在33℃时达到最佳捕食水平，超过该温度后其捕食量下降；且其4龄幼虫对大豆蚜的控害能力均优于雌成虫。异色瓢虫密度的增大导致种内竞争加剧，种群总捕食量虽有上升，但个体平均捕食量随种群密度的增加而显著降低，表明其捕食效率受自身密度的干扰效应制约。与异色瓢虫相较，多异瓢虫Adonia variegata对槐蚜表现出更强的捕食能力，随着槐蚜密度增加，两种瓢虫的寻找效应均呈下降趋势。表明捕食性瓢虫对蚜虫具有较强的捕食潜能，其捕食功能反应及捕食效率受蚜虫种类、温度条件及种内竞争强度等因素影响，并在不同瓢虫种类间存在差异。 中文关键词:瓢虫  蚜虫  捕食功能反应  环境因素  种内竞争   Effects of environmental factors and intraspecific competition on the functional response of predatory ladybirds Author Name Affiliation E-mail Li Dongyu  College of Plant Protection, Southwest University, Chongqing 400715, China Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Wang Wenli  Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Xu Xintong  Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Guo Ruoshui  Institute of Resources and Ecology, Yili Normal University, Yini 835000, Xinjiang Uygur Autonomous Region, China    Akberjan Erfan  Xinjiang Administration Center of West Tianshan National Nature Reserve, Yini 835000, Xinjiang Uygur Autonomous Region, China    Liu Huai  College of Plant Protection, Southwest University, Chongqing 400715, China  liuhuai@swu.edu.cn  Abstract:To systematically investigate the differences in predation capacity and control efficiency of predatory ladybirds against aphids under different conditions, laboratory experiments were conducted to evaluate predation at different aphid densities, environmental temperatures, and predator density gradients. The data were fitted with Holling's disc equation and models of interference and competition. The results showed that the functional responses of Harmonia axyridis to Aphis gossypii, Aphis glycines, Aphis sophoricola, and Chaitophorus populeti all conformed to Holling type Ⅱ functional response. Among the tested aphid species, H. axyridis exhibited the strongest predation capacity and control efficiency against C. populeti, with a theoretical maximum daily predation of 500.00 individuals, whereas its control efficiency against A. sophoricola was the weakest, with a theoretical maximum daily predation of only 90.91 individuals. The predation capacity of H. axyridis against A. glycines increased with temperature within the range of 21-33 ℃ and reached a maximum at 33 ℃, after which it declined at higher temperatures. Moreover, the fourth-instar larvae of H. axyridis exhibited higher control efficiency against A. glycines than adult females. Increasing predator density intensified intraspecific competition in H. axyridis populations; although total predation increased, the mean predation per individual decreased significantly with increasing predator density, indicating that predation efficiency was constrained by density-dependent interference. Compared with H. axyridis, Adonia variegata showed stronger predation capacity against A. sophoricola. With increasing aphid density, the searching efficiency of both species declined. These results indicate that predatory ladybirds have strong predation potential against aphids, and their functional responses and predation efficiencies are influenced by aphid species, temperature, and the intensity of intraspecific competition, with notable differences among ladybird species. keywords:ladybirds  aphids  functional response  environmental factors  intraspecific competition View Full Text  View/Add Comment  Download reader

Copyright:    京ICP备05006550号-2  You are the first  971344  Visitors
Head of Unit：Responsible Institution China Association for Scienc Organizers：China Society of Plant Protection and China Agricultural University Address：College of Agronomy and Biotechnology, China Agricultural University
Phone：86 (10) 62732528 E-mail：zbxb@cau.edu.cn
Technical Support：Tiller Beijing Science and Technology Development Co., Ltd.