1. What determines spatial bias in citizen science? Exploring four recording schemes with different proficiency requirements. Issue 11 (21st August 2016) Authors: Geldmann, Jonas; Heilmann‐Clausen, Jacob; Holm, Thomas E.; Levinsky, Irina; Markussen, Bo; Olsen, Kent; Rahbek, Carsten; Tøttrup, Anders P. Editors: Leung, Brian Journal: Diversity & distributions Issue: Volume 22:Issue 11(2016) Page Start: 1139 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗