Proboscis monkey

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Proboscis monkey
Scientific classification

The proboscis monkey (Nasalis larvatus) is found only on the island of Borneo in Southeast Asia.

They live in mangrove forests, and also lowland rainforests. It depends on the mangroves near river edges for resting and sleeping. They avoid deforested areas and avoid human settlements.

The proboscis monkey eats mainly fruit and leaves.[1] It also eats flowers, seeds and insects to a lesser extent. At least 55 different plant species are eaten.[2] Young leaves are preferred over mature leaves and unripe fruits are preferred over ripe fruit.[1] Being a seasonal eater, the proboscis monkey eats mostly fruit from January to May and mostly leaves from June to December.[2] Groups usually sleep in adjacent trees.[3] Monkeys tend to sleep near rivers, if they are nearby. Proboscis monkeys will start the day foraging and then rest further inland. Proboscis monkeys' daily activities consist of resting, traveling, feeding and keeping vigilant.[1]

References[change | change source]

  1. 1.0 1.1 1.2 Boonratana R. 1993. The ecology and behaviour of the proboscis monkey (Nasalis larvatus) in the lower Kinabatangan, Sabah. PhD dissertation, Mahidol University.
  2. 2.0 2.1 Yeager CP (1989) Feeding ecology of the proboscis monkey (Nasalis larvatus) (1989). "Feeding ecology of the proboscis monkey (Nasalis larvatus)". Int J Primatol. 10 (6): 497–530. doi:10.1007/BF02739363. S2CID 23442969. [1]
  3. Yeager CP (1992). "Proboscis monkey (Nasalis larvatus) social organization: group structure". Am J Primatol. 20 (2): 95–106. doi:10.1002/ajp.1350200204. PMID 31963992. S2CID 85675872. [2]