| dc.description.abstract | Sumatran orangutans are critically endangered species and one of their most
viable habitat is Gunung Leuser National Park (GLNP) in northern Sumatra.
Within the GLNP, secondary forest in Sei Betung resort is also considered as an
important habitat for Sumatran orangutan and other species. In this secondary
forest, orangutans were found roaming and nesting. The research entitled
“Characteristic Of Nest Sumateran Orangutan (Pongo abelii) in Secondary Forest
in Sei Betung Resort of Gunung Leuser National Park” was conducted from July
to August 2014. The purpose of this research is to identify the characteristic of
nest made by Sumatran orangutan based on nest class, nest position, nest altitude
and nest tree. The result of the research shows that the nest classes is dominated
by class D (24%) followed by class E (22%), class B (22%), class C (20%) and
class A (12%). Percentage of the nest position is dominated by position 3 (46%)
followed by position 2 (26%), position 1 (20%) and position 4 (8%). The altitude
of nests ranges from 0-25m, with 54% is located at altitude of 6-10m , 28% is at
11-15 m, 9% is between 16-20m, 8% is 0-5m, and only 2 % is at 21-25 m.
Characteristics based on the type of nesting tree found on 15 tree family and 27
tree species of which dominated by Euphorbiaceae (31%) and Lauraceae (11%).
The most dominated species for nest making is Endospermum diadenum and
Macaranga lowii. | en_US |
