Canopy gradient throughfall.

Throughfall (precipitation that falls through the canopy) was collected on three sites across an elevation gradient at Coweeta. For more information see Reynolds and Hunter, 2001 in Publications section below. The researchers tested whether inputs from canopy herbivores would affect soil processes such as respiration, nutrient cycling, and decomposition along an elevation gradient. The five treatments we used were frass additions, throughfall additions, removal of all litter that fell during the study, removal of greenfall that fell during the study, and controls.