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Deborah K. Letourneau, Sara G. Bothwell Allen and John O. Stireman III Perennial habitat fragments, parasitoid diversity and parasitism in ephemeral crops Journal of Applied Ecology 49

Version of Record online: 29 NOV 2012 | DOI: 10.1111/1365-2664.12001

Maintaining semi-wild, perennial habitat fragments as refugia to support parasitoids can increase biodiversity and provide ecosystem services in annual and short-cycle crop fields. Our results indicated that crop pests escaped parasitism by two important tachinid species in landscapes with greater than 38% and 51% cover of annual cropland, respectively. Landscape-level research is critical for integrating science and policy to conserve biodiversity, promote sustainable agroecosystems and evaluate new anti-wildlife vegetation removal campaigns that may harm biological control agents while targeting microbial food contamination.

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