 A November 2011 survey, based on interviews with 6,983 respondents in 687 villages across Kalimantan in 2008 to 2009, gave estimated orangutan killing rates of between 750 and 1800 in the year leading up to April 2008.These killing rates were higher than previously thought and confirm that the continued existence of the orangutan in Kalimantan is under serious threat.The survey did not quantify the additional threat to the species due to habitat loss from deforestation and expanding palm-oil plantations.