Author’s contributions
DK, HG, KB, and MN designed the study; DK, KN, CK and AB conducted the fieldwork; KN and MCM oversaw the data management; DK performed the analysis with support from KB; GM provided input to the study design and fieldwork; MCM, IK and IS contributed to the analysis; DK wrote the manuscript; KB, HG and MN contributed to the manuscript. All authors approved the final version of the manuscript.