harvester ant -- 002

harvester ant -- 002

tilled and not-tilled fields

Comparison of a no till (left) and a tilled (right) field in August, after winter cereal harvest and tillage (in the tilled fields). Weed seeds are available to harvester ants in the no till field, whereas they are buried and unavailable to ants in the tilled field.

IMAGE: Barbara Baraibar