Response by Specialist and Generalist Natural Enemies to Agroecosystem Diversification: A Selective Review
作者:
William Sheehan,
期刊:
Environmental Entomology
(OUP Available online 1986)
卷期:
Volume 15,
issue 3
页码: 456-461
ISSN:0046-225X
年代: 1986
DOI:10.1093/ee/15.3.456
出版商: Oxford University Press
数据来源: OUP
摘要:
Effects of agroecosystem diversification on searching behavior and success of arthropod natural enemies are poorly understood. Crop diversification may increase generalist enemy effectiveness by increasing alternate food or prey availability, as predicted by the enemies hypothesis. But diversification may also reduce enemy searching efficiency and destabilize predator/prey interactions. Additionally, specialist enemies, often important in biological control programs, may be particularly sensitive to vegetation texture. Pest control by specialist enemies may be more effective in less diverse agroecosystems if concentration of host plants increases attraction or retention of these enemies.
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