Data from Huang et al. 10.6084/m9.figshare.21159229.v3
Huang, N., Sun, X., Song, Y., Yuan, Z., & Zhou, W. (2023). Amphibian traits database: A global database on morphological traits of amphibians. Global Ecology and Biogeography, 32, 633–641. 10.1111/geb.13656
Data imported into SQLite. The file Reference.csv needed to be converted to UTF-8. The script make_null.php generates SQL statements to convert all N/A (not available) values to NULL.