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Asian Journal of Agriculture and Development (AJAD) - Call for papers!

Habitat Use of Silver Leaf Monkey (Semnoplthecus auratus E. Geoffroy, 1812) in Teak (Tectona grandls Linneaus f.) Plantation of Cepu, Central Java, Indonesia

(Indonesia), Doctor of Philosophy in Forest Biological Sciences (University of the Philippines Los Baños)

Dissertation Abstract:

 

A survey conducted from December 1988 to December 1989 showed that six types of habitats in teak forest plantation were used by the silver leaf monkey (Semnopithecus auratus). Each habitat type had its own characteristics, structure, and composition of vegetation which was distinguished from the other in terms of use by the silver leaf monkey. Among all the habitat types, the gallery forest was the most favored habitat by the S. auratus troop.

The troop size was 8 to 10 animals and the population density was about 0.0162 animal per hectare. Decline in their population resulted from the recent habitat destruction, predation, and hunting.

Home range s ize was about 32 ha during the rainy season and 43 ha in the dry season. Day-length travel ranged from II 0 to 11 50 m in the rainy season and 190 to I ,015 m during the dry season.

The S. auratus troop spent more time resting than doing other activities during the day. This troop fed mainly on leaves, with the leaf petioles of teak leaves as the most preferred.

Three sleeping sites were observed during the rainy season, and one during the dry season. All of these sleeping sites were in the gallery forest habitat type.

Other fauna in the study site such as the emerald dove (Chalcophaps indica), fruit-eating dove (Macropequia me/ian), little green pigeon (Treron oxyura), parrot (Psificula alexandri), yellow bulbul (Pycnonotus goiavier), and crested bulbul (Pycnonotus caver aurigaster) could be considered as food competitors of the si lver leaf monkey.

The success of ma nagement depe nds highly on the basic investigations of this species which could be conducted in future research. Teak forest is deemed compatible with wild life, particularly that of the silver leaf monkey.