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Food chains in cereal fields

Bruus Pedersen, M.; Axelsen, Jørgen Aagaard and Tybirk, Knud (2011) Food chains in cereal fields. Agriculture, Ecosystems & Environment, , - . [Submitted]

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Correlations between the weed flora and the arthropod fauna of conventionally and organically managed fields were analysed. The results indicate that the abundance of weeds in Danish conventionally grown cereal fields is too low to sustain a population of more or less species specific herbivores, i.e. too low to maintain functioning food chain links between weeds and herbivores. Organically grown fields with a higher abundance of weeds may be capable of sustaining a fauna of arthropods relying on the weeds. The data from extra- weedy areas support this hypothesis, indicating that particularly weed-rich fields can better support herbivorous insects.

EPrint Type:Journal paper
Subjects: Environmental aspects > Biodiversity and ecosystem services
Research affiliation: Denmark > DARCOF III (2005-2010) > REFUGIA - The role of Organic Farms as refugia for biodiversity
Deposited By: Bruus, Dr. Marianne
ID Code:19041
Deposited On:29 Jun 2011 12:10
Last Modified:23 Dec 2011 09:36
Document Language:English
Refereed:Submitted for peer-review but not yet accepted

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