Pollinators are the bee's knees for global crop production
Pollinators are the bee's knees for global crop production

Coaxing more bees, beetles and other pollinators to buzz around small fields could on average boost crop yields enough to close the gap between the worst and the best of these farms by almost a quarter, says agroecologist Lucas Alejandro Garibaldi of the National University of Río Negro and Argentina’s CONICET research network.
This yield gap has excited much interest from people studying the future of the world’s food supply at a time when the explosive growth of the human population needs more, more and even more. Some researchers have estimated that food-growers will need to double agricultural production by 2050 to keep up with the need. “Closing the yield gaps is a key part of the solution, particularly in areas with there’s a poverty trap created by malnourishment, low yields, little income and many other factors,” says Paul West, codirector of the Global Landscape Initiative at the University of Minnesota in Saint Paul.
To see whether improving pollination could make a noticeable difference, Garibaldi and an international network of researchers carefully used the same sampling protocols to observe 344 fields on large and small farms in Africa, Asia and South America over the course of five years. Looking at 33 crops that need pollinators — raspberries, apples, coffee and so on — the researchers monitored pollinator visits and diversity as well as the ultimate yields.
Nature.org estimates that “the monetary value of honey bees as commercial pollinators in the United States is estimated at about $15 billion annually.” That’s a number that gets our attention.