Habitat modification alters the structure of tropical host–parasitoid food webs

Jason M. Tylianakis (), Teja Tscharntke and Owen T. Lewis
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Jason M. Tylianakis: Georg August University
Teja Tscharntke: Georg August University
Owen T. Lewis: University of Oxford

Nature, 2007, vol. 445, issue 7124, 202-205

Abstract: A tangled web Global change has the potential to influence species interactions, but the consequences for ecosystem function and stability are hard to predict. Quantitative food webs provide a powerful tool to probe such questions, but to date they have been used mainly to describe individual communities. A study of 48 plots in the Choco-Manabi region of Ecuador, where large-scale agriculture threatens biodiversity, now confirms that human habitat modification can dramatically affect networks of feeding interactions among species in host–parasitoid food webs. The switch from tropical rainforest to intensive agriculture has negative consequences for bees and wasps, which are important for pollination and biological pest control.

Date: 2007
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DOI: 10.1038/nature05429

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