| dc.description.abstract | One of the most important skills to learn during postnatal development
period is foraging skill. It is apply to orangutans’ need in their complex foraging
niche, broad diets, and highly fluctuating food availability in the natural habitat.
Study about this behavior in Tapanuli orangutans (Pongo tapanuliensis) has never
been described yet. Therefore, the aim of this study was to observe the foraging
skill learning of immature Tapanuli orangutans at Camp Mayang Research
Station, North Sumatera. I did the observation with focal animal sampling of
immature individual and its mother as references. Data analysis was performed
using Kruskal Wallis test and corrected with False Discover Rate. I found that the
infant had high independency on social feeding behavior toward its mother, high
similarity of diet repertoires and food processing steps with the mother. Moreover,
the infant still depended on the mother to find feeding patches and travelling
through the forest. The results indicated that foraging skill learning of infant
Tapanuli orangutan happened vertically, from the mother to the infant. | id |
