Our Brother From Another Mother? (Introduction)

proboscis-monkey

Background

Name: 

Proboscis Monkey (Nasalis larvatus)
Aka Long-nosed Monkey

Range: 

Endemic to Borneo

Occurring in Brunei Darussalam, Indonesia (Kalimantan) and Malaysia (Sabah and Sarawak)
Distinguishing Feature:
A very, very large nose (Males)
Pot Belly
Status: 

Endangered in the IUCN Red List of      Threatened Species

Listed in Appendix I of CITES
Lifespan:

>25 Years (Captive)
Size (Sexual Dimorphism)

Male Monkey

Male
  • Head-body length: 73 – 76 cm
  • Tail length: 66 – 75 cm
  • Weight: 16 – 22 kg

 

Female monkey

 

 

 

 

 

 

 

 

Female

  • Head-body length: 54 – 64 cm
  • Tail length: 52 – 62 cm
  • Weight: 7 – 12 kg

Richardson, M. (2006) Pers. comm.

Diet

Proboscis monkeys are generally folivore/frugivores, with their diet, comprising of over 90 species of plants. (Salter et al. 1985; Boonratana 1993; Yeager 1989a).

They prefer young leaves and unripened non-fleshy fruits. With their diet changing along with the seasonal availability of food sources (Yeager 1989).

Fruits (40.33%), Flowers (2.97%), Leaves (51.94%), Insects and bark (<1%), Unknown foods (4.68%) (Yeager 1989a).

 

 

Conservation Psychology