Statistics for each 15 km X 15 km grid cell, for all California native vascular plants, as studied by Baldwin et al. (2017 Amer. J. Bot.), including randomization results.
Baldwin, Bruce G. et al. (2017), Statistics for each 15 km X 15 km grid cell, for all California native vascular plants, as studied by Baldwin et al. (2017 Amer. J. Bot.), including randomization results., v2, Dataset, https://doi.org/10.6078/D12S3Z
Shown in columns in this Excel spreadsheet are (1) Cell identifier; (2 & 3) X and Y coordinates for the centroid of each grid cell, using the California Albers (EPSG:3310) coordinate system; see http://spatialreference.org/ref/epsg/3310/ ; (4) Observed species richness; (5) Observed redundancy (1 - [richness / number of specimens]); (6) Observed weighted endemism (1/number of cells occupied by a species, summed across all species in a cell); (7) Observed corrected weighted endemism (WE/cell richness); and (8) Number of randomizations with a CWE score lower than observed; 950 and above is considered significant. All calculations and indices are from the Biodiverse software package (Laffan, S.W., Lubarsky, E. & Rosauer, D.F. (2010) Biodiverse, a tool for the spatial analysis of biological and related diversity. Ecography. Vol 33, 643-647) — http://shawnlaffan.github.io/biodiverse/
Based on the full spatial data set from: Baldwin, B.G., A.H. Thornhill, W.A. Freyman, D.D. Ackerly, M.M. Kling, N. Morueta-Holme, and B.D. Mishler. 2017. Species richness and endemism in the native flora of California. American Journal of Botany. 104: 487–501. http://www.amjbot.org/content/104/3/487.full
National Science Foundation, Award: DEB-1354552