To protect tarsiers in their native environment (with reference to Tangkoko National Park, North Sulawesi, Indonesia), we need to preserve the existing forests. In particular, certain species of figs and a few particular species of forest trees (these are giant trees, over 30 metres tall) must be conserved as a "Complete Symbiotic Package" to ensure the right micro-habitats are holistically safe-guarded for the very sensitive, highly-vulnerable, and small-sized tarsiers. As a result of the dynamic interactions between the stranggling fig and the host tree, interesting cavities are formed within these giant forest trees' trunks and the aerial stem/roots of the fig tree(s). The little tarsiers live in these cavities! In addition, I am concerned about the increasingly use of pesticides (of nearby farms and plantations, adjacent to the forest reserves) that targets agricultural insect pests, which ironically form a great part of the tarsiers' diet. We do indeed have a complex task ahead of us in order to protect this wonderful small primate!
The animal kingdom; based upon the writings of the eminent naturalists, Audubon, Wallace, Brehm, Wood and others.
New York :Johnson & Bailey,1897.
biodiversitylibrary.org/page/15570457