The effects of crop diversification on herbivorous insects: a meta‐analysis approach

@article{Tonhasca1994TheEO,
  title={The effects of crop diversification on herbivorous insects: a meta‐analysis approach},
  author={Athayde Tonhasca and David N. Byrne},
  journal={Ecological Entomology},
  year={1994},
  volume={19}
}
Abstract. 1 We used a meta‐analysis to evaluate the hypothesis that diversified crops are subject to lower density of herbivorous insects. This method consists of integrating findings of independent studies by calculating the magnitude of treatment effects (effect size). 2 A literature review covering a period of over 10 years yielded twenty‐one studies that contained sufficient information for the meta‐analysis. The data were analysed according to three criteria: yearly replications of the… Expand
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