Behavioural Studies of Harpalus rufipes De Geer: an Important Weed Seed Predator in Northeastern US Agroecosystems
Figure 1
Seed burial effects on H. rufipes predation efficiency and rate (mean and SE). Seeds were placed on the soil surface, buried to half their longest dimension, or buried with 1 mm of sand. Bars with different upper case (predation rate) or lower case (predation efficiency) letters are significantly different ().
