The Greater Bamboo Lemur is critically endangered, endemic to Madagascar it is threatened by slash-and-burn agriculture, illegal logging, the cutting of bamboo and hunting with slingshots and snares. Sub-fossil records show that it was once one of the most common lemurs across a large part of the island. It has therefore suffered a dramatic decline, and is clearly in need of urgent action to try to save it.

The Aspinall Foundation is seeking to identify unprotected areas that support bamboo lemurs or bamboo lemur habitat and prioritise them as areas needing additional support and management. In 2009, the surveys undertaken by the charity in collaboration with a number of other NGO's has resulted in the identification of several new habitat locations and as such, has doubled the number of locations where the Greater Bamboo Lemur is known to occur.