Url https://chloe.cnr.it/s/DHeLO/item/15573 Resource class bibo:AcademicArticle Creator Fielding, Alan H. Bell, John F. Date 1997 Language eng Is Part Of Environmental Conservation Doi https://doi.org/10.1017/S0376892997000088 Issn 0376-8929, 1469-4387 Issue 1 Pages 38-49 Volume 24 Homepage https://www.zotero.org/groups/5293298/bidiar/items/JJRTVMP8/item-list --