Abstract
Trachypithecus cristatus (Silvered Leaf Monkey or Silvered Lutung) occur on the Malay Peninsula, Sumatra, Borneo and nearby islands and live mainly in uni-male, female-bonded groups. This study presents preliminary data on social behaviours for Silvered Leaf Monkey in captivity. Behavioural observations were conducted on one group (one adult male, four adult females, three juvenile males and four juvenile females). Data were collected on 30 of the 60 calendar days at the National Zoological Gardens, Dehiwala, Sri Lanka. All behaviours including agonistic and dominance-related, locomotion, feeding and infant-related behaviours were included in the analysis. Unlike in wild populations, we found a clear dominance hierarchy among females. Key words : Trachypithecus cristatus ; Captive Behaviour; Dominance; Hierarchy; Langur; Sri Lanka. DOI: 10.4038/tapro.v1i1.2781 TAPROBANICA, April, 2009. Vol. 01, No. 01: pp. 66-73
Highlights
Lutung, Langur, Leaf Monkey and Surili are common names for certain Asian and East Indian long-tailed, slender monkeys in the genera Trachypithecus, Semnopithecus and Presbytis
This study presents preliminary data on social behaviours for Silvered Leaf Monkey in captivity
All behaviours including agonistic and dominance-related, locomotion, feeding and infant-related behaviours were included in the analysis
Summary
Langur, Leaf Monkey and Surili are common names for certain Asian and East Indian long-tailed, slender monkeys in the genera Trachypithecus, Semnopithecus and Presbytis. © Taprobanica Nature Conservation Society, 146, Kendalanda, Homagama, Sri Lanka. SOCIAL BEHAVIOURS OF CAPTIVE Trachypithecus cristatus (MAMMALIA: CERCOPITHECIDAE) IN THE NATIONAL ZOOLOGICAL GARDENS OF SRI LANKA
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