Jurnal Biologi Tropis
Vol. 26 No. 4 (2026): in Progress

Daily Behavior of Silvered Langur (Trachypithecus cristatus) in Brayeun Forest, Aceh Besar

Muhammad Rais (Universitas Islam Negeri Ar-Raniry Banda Aceh)
Nafisah Hanim (Universitas Islam Negeri Ar-raniry)
Rizky Ahadi (Universitas Islam Negeri Ar-raniry)
Samsul Kamal (Universitas Islam Negeri Ar-raniry)
Erna Diana (Universitas Islam Negeri Ar-raniry)



Article Info

Publish Date
05 Oct 2026

Abstract

The silvered langur (Trachypithecus cristatus) is an arboreal and diurnal primate whose daily activities are influenced by habitat conditions and food availability. This study aimed to determine the daily behavioral patterns of silvered langurs in the Brayeun Tourism Area, Leupung District, Aceh Besar. The study was conducted in May 2026 using the scan sampling method, with observations carried out from 07.00–10.00 WIB and 15.00–18.00 WIB for seven consecutive days. Data were analyzed descriptively based on the frequency and percentage of each observed behavior. The results showed that feeding was the dominant activity (32.71%), followed by moving (19.43%), resting (16.82%), grooming (12.28%), social interaction (7.08%), carrying infants (6.48%), and nursing (5.20%). Silvered langurs utilized several plant species as food sources, including Leucaena leucocephala, Mangifera odorata, Garcinia mangostana, Durio zibethinus, Ficus benjamina, and Bambusa sp. The dominance of feeding, moving, and resting activities indicates that these behaviors constitute the main components of the daily activity budget of silvered langurs. The findings also suggest that the Brayeun forest area continues to provide suitable habitat and food resources to support the survival of this species.

Copyrights © 2026






Journal Info

Abbrev

JBT

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Description

Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi ...