Nicaragua cloud forest 'under siege' by illegal loggers. Bosawas forest - the Bosawas Reserve is a critically important rainforest but native people say it is being destroyed by "colonists" A famed rainforest in Nicaragua is under growing threat from illegal loggers, say indigenous leaders. The Bosawas Biosphere Reserve is Central America's largest tropical forest with clouds constantly drifting over the hilly terrain. But the Mayangna and Miskito people who live there say 30,000 hectares a year are being deforested by "colonists". They are calling on US president Barack Obama, who is visiting the region, to support their battle. Described by the United Nations as a global biological treasure, the reserve is located on the border between Nicaragua and Honduras and teems with wildlife. “We believe that if there is no intervention there will be no Biosphere Reserve in five to 10 years” Taymond Robins, Mayangna people The two million hectares are said to be home to 150,000 insect species, rare jaguars, eagles and crocodiles as well as the world's last populations of Baird's Tapir and the Central American Spider Monkey. Landless invaders The Bosawas reserve also overlaps the homes of indigenous communities who have been there for centuries, living by hunting and fishing. The Nicaraguan government recognised the full legal title of the Mayangna to their lands in 2007. Since then, they say they have been subject to what they term an "invasion" by landless people from other parts of the country.