Restorationistis typically evaluate the success of a project by estimating the population sizes of species that have been planted or seeded. Because total census is raely feasible, they must rely on sampling methods for population estimates. However, traditional random sampling designs may be inefficient for species that, for one reason or another, are challenging to survey. Based on our effort to retore a longleaf-pine wiregrass (Pinus palustris-Aristida beyrichiana) community, we believe that adaptive sampling methods--specifically adaptive cluster sampling--may provide restorationists with efficient and reliable estimates, especially when contractual agreements specify performance standards.
Silletti, Andrea M.; Walker, Joan. 2003. Adaptive cluster sampling: An efficient method for assessing inconspicuous species. Ecological Restoration 21(4): 330-331