Using this graphic and referring to it is encouraged, and please use it in presentations, web pages, newspapers, blogs and reports.
For any form of publication, please include the link to this page and give the cartographer/designer credit (in this case Riccardo Pravettoni, UNEP/GRID-Arendal)
Hillshade generated from SRTM 90m DEM available from the CGIAR website (http://srtm.csi.cgiar.org/).
Bathymetry from the ETOPO1 Global Relief Model downloaded from: http://www.ngdc.noaa.gov/mgg/global/global.html
Sumatran orangutan distribution shapefile prepared by Singleton and Wich and based on Wich et al. 2008 with unpublished data added.
Forest layer interpreted by PanEco/ YEL, 2010 from Landsat 5 TM, 2009 and Landsat ETM 7 filled, 2010.
Regional I, Planologi Office (BPKH Wil I), Forestry Ministry of Indonesia, 2008. Aceh concessions are also shown on a map that can be downloaded from the Minestry of Forestry website: Peta Persebaran Areal HPH Propinsi NAD, Badan Planologi Kehutanan, DepHut 2003.
Uploaded on Wednesday 01 Feb 2012
Riccardo Pravettoni, UNEP/GRID-Arendal
Some timber concessions overlap orangutan habitat in a number of key locations. If left to recover after logging, orangutans will gradually return to former concessions. But if the land is converted to monoculture plantations this will no longer be possible.