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Agricultural policy-induced landscape changes: effects on carabid abundance and their biocontrol potential
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European Journal of Entomology
- Article date:
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July 1, 2008
- Author:
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Copyright informationCopyright Institute of Entomology 2008. Provided by ProQuest LLC. (Hide copyright information)
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Key words. Agricultural intensification, biocontrol, density, diversity, species richness, food webs, predatory pressure
Abstract. One of the most important services provided by biodiversity is thought to be the biological control of pests in agricultural landscapes, including aphids on cereals. The food webs potentially contributing to biological control of aphids primarily consist of polyphagous predators, parasitoids and pathogens. The problems of aphid pests have increased greatly since the 1970-ies, possibly as an effect of agricultural intensification, which is thought to have reduced diversity and abundance of these predators and parasites and consequently their biocontrol potential. ...
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