info:ar-repo/semantics/artículo
A global synthesis reveals biodiversity-mediated benefits for crop production
Fecha
2019-10Autor
Dainese, Matteo
Martin, Emily A.
Aizen, Marcelo Adrian
Albrecht, Matthias
Bartomeus, Ignasi
Bommarco, Riccardo
Carvalheiro, Luisa G.
Chaplin-Kramer, Rebecca
Gagic, Vesna
Garibaldi, Lucas Alejandro
Cavigliasso, Pablo
Steffan-Dewenter, Ingolf
Resumen
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.