sentences:  The Forest Elephant is particularly at risk due to the high cost of its ivory, especially in the Far East, due to this its population has reduced by 62% in 2002–2011 The main way this poaching for ivory can be reduced is through the hampering of the international demand for ivory, as this drives the trade.The introduction of park guards and the implementation of eco-tourism in Virunga National park, a primary habitat for great apes, has allowed the endangered mountain gorilla population to jump over 1000, a 25% rise on 2010 numbers.However, the study indicated that poaching is still an existing problem, with researchers finding 380 snares and park guards continually being ambushed and killed by poachers.