Daniel J. McGlinn and Allen H. Hurlbert. 2012. Scale dependence in species turnover reflects variance in species occupancy. Ecology 93:294–302.

Appendix D. The Sevilleta sampling design.

FIG. D1. (A) Habitat map of the Sevilleta National Wildlife Refuge in central New Mexico showing the distribution of four habitat types and the location of the sampling site in each habitat (numbers). The star indicates the location of a separate 400 m linear plant transect (not used in this study). Inset shows the location of the ten sampling webs around the creosote-grassland transition zone. (B) An example of the hierarchical sampling design at each site, where each site is made up of 5 sampling webs, each web is made up of 4 plots, and each plot consists of 4 1-m2 quadrats (Muldavin 2008, 2009).

LITERATURE CITED

Muldavin, E. 2008. ANPP Quadrat Sampling Data for Pinyon-Juniper Site 1999-2001. Albuquerque, NM: Sevilleta Long Term Ecological Research Site Database: SEV187. http://sev.lternet.edu/project_details.php?id=SEV187. (15 January 2010).

Muldavin, E. 2009. A long-term study to monitor net primary production across four distinct ecosystems: creosote dominant shrubland, black grama dominant grassland, blue grama dominant grassland, Pinon/Juniper woodland. Albuquerque, NM: Sevilleta Long Term Ecological Research Site Database: SEV129. http://sev.lternet.edu/project_details.php?id=SEV129. (15 January 2010).