Mean values of six descriptive variables measured in the
field for each of the 13 habitats (n = 252 quadrats). Shade
represents total shade cover (%) of vascular plants over
the ground layer. Mean height of trees was estimated from
the four tallest trees occurring in each of the four
quadrants of the sampling pixels. See Fig. 3 for more details
on the other descriptive variables. Habitat codes are
defined in Table 1.