These data are authored by David Inouye and are available through the DRUM repository (http://www.lib.umd.edu/drum/browse?type=author&value=Inouye%2C+David+William) . You can find brief metadata for this study here (http://rmbl.org/reports/nssitereport.php?rec_id=215), download a more extensive metadata document here (http://rmbl.org/reports/nsfiles.php?Tkey=7c4aea942dc2196072ac8aa304d1f231) and see a list of Dr. Inouye's publications here (https://www.usanpn.org/?q=pubs/inouye). Please contact David Inouye (inouye@umd.edu) before using these data.