An investigation on Persian leopard was carried out from September 2007 to October 2008 in Ghorkhod & Behkadeh Reserve, northeastern Iran. The area is the main buffer habitat around the core (source) population in Golestan National Park, but it suffers severe depletion of natural prey species due to lower level of protection measures, and is probably a sink population. We conclude that to ensure corridors and buffer zones, the most urgent and achievable solution is perhaps to designate additional