Nest Stuctures in Bornean Orangutan
Nest-building techniques processes related parties in choosing the trees, the basic building structure, making layers, and adding nest locking system with accessories. There are Lacks of data about the pattern of the orangutan nest and only van Schaik (1995) described four Variations of nest structure. By Following 22 orangutans with instantaneous focal animal method, 19 vertical nest structures are found, and horizontally variations orangutan nest forming butterfly pattern. Tree species are Elaocarpus mastersii that mostly used by Orangutan to build nest with type of branch direction and height of first branch as the Reasons. Nest was built in 5-9 meters height and they were seldom to rebuilt or reuse old nest. They seldom to develop their nest in the last fruit trees to avoid night-predators.
Tidak ada salinan data
Tidak tersedia versi lain