Do differences in food web structure between organic and conventional farms affect the ecosystem service of pest control?

  title={Do differences in food web structure between organic and conventional farms affect the ecosystem service of pest control?},
  author={Sarina Macfadyen and Rachel H. Gibson and Andrew Polaszek and Rebecca J. Morris and Paul G. Craze and Robert Planqu{\'e} and William O. C. Symondson and Jane Memmott},
  journal={Ecology letters},
  volume={12 3},
While many studies have demonstrated that organic farms support greater levels of biodiversity, it is not known whether this translates into better provision of ecosystem services. Here we use a food-web approach to analyse the community structure and function at the whole-farm scale. Quantitative food webs from 10 replicate pairs of organic and conventional farms showed that organic farms have significantly more species at three trophic levels (plant, herbivore and parasitoid) and… 

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