Over the five-year period from 2010-2015 the total area lost is equal to about 49,000 km2 of primary forest, an area equal to nearly one third of the world's total loss of primary forests during the same period. Primary forests are particularly important to biodiversity as they are exclusive habitats for many animal and plant species that cannot survive in planted forests or other types of environments. Primary forests comprise forests and other wooded land home to native species where there are no clearly visible indications of human activity, and the ecological processes are not significantly disturbed.