Return to Wildland Fire
Return to Northern Bobwhite site
Return to Working Lands for Wildlife site
Return to Working Lands for Wildlife site
Return to SE Firemap
Return to the Landscape Partnership Literature Gateway Website
return
return to main site

Skip to content. | Skip to navigation

Sections

Personal tools

You are here: Home / Resources / Climate Science Documents / Wild Pollinators Enhance Fruit Set of Crops Regardless of Honey Bee Abundance

Wild Pollinators Enhance Fruit Set of Crops Regardless of Honey Bee Abundance

The diversity and abundance of wild insect pollinators have declined in many agricultural landscapes. Whether such declines reduce crop yields, or are mitigated by managed pollinators such as honey bees, is unclear. We found universally positive associations of fruit set with flower visitation by wild insects in 41 crop systems worldwide. In contrast, fruit set increased significantly with flower visitation by honey bees in only 14% of the systems surveyed. Overall, wild insects pollinated crops more effectively; an increase in wild insect visitation enhanced fruit set by twice as much as an equivalent increase in honey bee visitation. Visitation by wild insects and honey bees promoted fruit set independently, so pollination by managed honey bees supplemented, rather than substituted for, pollination by wild insects. Our results suggest that new practices for integrated management of both honey bees and diverse wild insect assemblages will enhance global crop yields.

Publication Date: 2013

Credits: SCIENCE 29 MARCH 2013 VOL 339

Fair Use OK

DOWNLOAD FILE — PDF document, 904 kB (925,973 bytes)