TREAT was founded with the aim of creating corridors between remnants of rainforest. The Wet Tropics, in which TREAT operates, is a diverse ecosystem that is home to many endemic species that only occur within the bioregion. When these forests are fragmented by agriculture and development, organisms are unable to move safely between patches. Some animals cannot leave their habitat at all, while others can but are threatened by cars, people, dogs, and cats when traveling between forests. When these organisms are restricted to smaller and smaller tracts of forest, they become more susceptible to disturbances that occur within the area, and the habitat they can escape into decreases as well.