lowing agroforestry habitat variables at the beginning and midpoint
of the sampling season to account for mid-season pruning
and replanting: (1) the density and species richness of overstory
trees (trees), (2) the diameter at breast height (DBH) of shade trees
(for basal area), (3) the density of understory coffee bushes, and (4)
the plot elevation. We hand-counted all coffee plants and trees in
the 1 ha plot. Elevation was measured with a GPS unit (Trimble
GeoExplorer 3) at the SE corner of each plot.