William K. Cornwell, Dylan W. Schwilk, and David D. Ackerly. 2006. A trait-based test for habitat filtering: convex hull volume. Ecology 87:1465–1471.

Appendix D. Two-dimensional convex hulls containing two representative communities shown relative to the pool of 54 woody species.

FIG. D1. Two-dimensional convex hulls containing two representative communities shown relative to the pool of 54 woody species. (a) and (c) show the space defined by wood density and specific leaf area. (b) and (d) show seed mass and leaf area. (a) and (b) show the convex hull defined by the 9 species in a representative lower diversity plot. (c) and (d) show the 14 species in a higher diversity plot.