ABOVE: The map above of the rapidly developing S Sabah-N Kalimantan border region shows the area of a joint WWF Sabah and WWF Indonesia Heart of Borneo project to investigate cross-border elephant migration. The purpose is to make recommendations to the local governments so that any future plantation developments in the area can be mitigated to protect current elephant migration routes.
Suyitno & Wulfraat (2012 The Elephant Groups of East Kalimantan