Figure 22.20 Nature reserve design. The number, shape, size, and proximity of reserves affect the probable success of preserving a region’s biodiversity. As noted in this figure, some designs are likely to be better than others for preserving biodiversity.

Adapted from J. M. Diamond, The island dilemma: Lessons of modern biogeographic studies for the design of nature reserves, Biological Conservation 7 (1975): 129–146 and J. C. Williams et al., Spatial attributes and reserve design models, Environmental Modeling and Assessment 10 (2005): 163–181.