Acknowledgements
The authors wish to thank the respondents of the field survey, that is, of Dhangmari and Burigoalini villages, FD officials and CCEC NGO, for their volunteer supports in conducting this research. Banglapedia has kindly given us permission to use the union maps reproduced in . The authors are also grateful to Khulna University Research Cell for providing the funds for the research. Constructive comments from two anonymous reviewers and the editor were very helpful in revising the paper.