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Title: A global synthesis reveals biodiversity-mediated benefits for crop production
Human land use threatens global biodiversity and compromises multiple ecosystem functions critical to food production. Whether crop yield–related ecosystem services can be maintained by a few dominant species or rely on high richness remains unclear. Using a global database from 89 studies (with 1475 locations), we partition the relative importance of species richness, abundance, and dominance for pollination; biological pest control; and final yields in the context of ongoing land-use change. Pollinator and enemy richness directly supported ecosystem services in addition to and independent of abundance and dominance. Up to 50% of the negative effects of landscape simplification on ecosystem services was due to richness losses of service-providing organisms, with negative consequences for crop yields. Maintaining the biodiversity of ecosystem service providers is therefore vital to sustain the flow of key agroecosystem benefits to society.  more » « less
Award ID(s):
1832042
NSF-PAR ID:
10164425
Author(s) / Creator(s):
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Date Published:
Journal Name:
Science Advances
Volume:
5
Issue:
10
ISSN:
2375-2548
Page Range / eLocation ID:
eaax0121
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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