Urban Mammals: Leaf monkeys

dusky langur

Dusky langur/Dusky leaf monkey (Trachypithecus obscurus)

Local name: Lotong cengkung, lotong chengkong, lutong bercelak

Description:

  • Fur colour of adults is greyish brown, dark grey and sometimes blackish. Easily identifiable with a white ring-like shape around its eyes
  • Infants are pale yellow to orange in colour.
  • Troop size ranges from 8 to 20 individuals

Activity pattern: Diurnal

Ecological function: Seed disperser

Level in food chain: Primary consumer, but sometimes seen feeding on insects

Feeding behaviour: Primarily folivorous – herbivores that feed on leaves

Food items: Young leaves, leaf shoots, fruits, flowers

Microhabitat: Inhabits a range of forest habitats. Sometimes seen in urban parks that are located close to forest edge

Silvery langur/Silvered leaf monkey (Trachypithecus cristatus)

Local name: Lotong kelabu

Description:

  • Adult has dark grey fur with a silvery sheen, and black hands and feet. Head has crested fur.
  • Infants are pale yellow to orange in colour.

Activity pattern: Diurnal

Ecological function: Seed disperser

Level in food chain: Primary consumer

Feeding behaviour: Primarily folivorous – herbivores that feed on leaves

Food items: Young and matured leaves, fruits, seeds, flowers

Microhabitat: Normally found at coastal and riverine habitats in Peninsular Malaysia