“The findings have important implications for agricultural and land-use policies worldwide, said study leader Lucas A. Garibaldi, an agricultural scientist at the National University of Rio Negro in Argentina: Unless habitats for wild insects are protected and nurtured, farmers around the world could face a future of drastically lower yields.
Scientists have long warned that plowing landscapes into vast, single-crop fields and orchards eliminates the range of soil, wildflowers and other vegetation that is crucial to support multiple species of wild pollinators, including bees, flies, beetles and butterflies. As these insect populations have dwindled, farmers have resorted to using rented interlopers, generally Apis mellifera, during flowering season.
“Honeybees cannot replace the service wild bees provide,” Garibaldi said. “Biodiversity in agricultural landscapes matters and can help increase production.”
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