Animalia > Chordata > Mammalia > Primates > Cercopithecidae > Nasalis > Nasalis larvatus

Nasalis larvatus (proboscis monkey)

Synonyms:

Wikipedia Abstract

The proboscis monkey (Nasalis larvatus) or long-nosed monkey, known as the bekantan in Indonesia, is a reddish-brown arboreal Old World monkey that is endemic to the southeast Asian island of Borneo. This species co-exists with the Bornean orangutan. It belongs in the monotypic genus Nasalis, although the pig-tailed langur has traditionally also been included in this genus. The monkey also goes by the Indonesian name monyet belanda ("Dutch monkey"), or even orang belanda ("Dutchman"), as Indonesians remarked that the Dutch colonisers often had similarly large bellies and noses.
View Wikipedia Record: Nasalis larvatus

Endangered Species

Status: Endangered
View IUCN Record: Nasalis larvatus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
3
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
52
 Unique & Vulnerable (100)
ED Score: 6.52
EDGE Score: 4.1
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  33.466 lbs (15.18 kg)
Birth Weight [2]  1.08 lbs (490 g)
Female Weight [1]  21.246 lbs (9.637 kg)
Male Weight [1]  45.687 lbs (20.723 kg)
Weight Dimorphism [1]  115 %
Diet [3]  Frugivore, Herbivore
Diet - Fruit [3]  20 %
Diet - Plants [3]  80 %
Forages - Scansorial [3]  100 %
Female Maturity [2]  4 years
Gestation [2]  5 months 16 days
Litter Size [2]  1
Litters / Year [2]  1
Maximum Longevity [2]  25 years
Snout to Vent Length [1]  28 inches (70 cm)
Weaning [2]  7 months 3 days
Habitat Substrate [4]  Arboreal

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Borneo lowland rain forests Indonesia, Malaysia Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests
Borneo peat swamp forests Indonesia, Malaysia, Brunei Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests
Southwest Borneo freshwater swamp forests Indonesia Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests
Sunda Shelf mangroves Indonesia, Malaysia, Brunei Indo-Malayan Mangroves
Sundaland heath forests Indonesia Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
Sundaland Brunei Darussalam, Indonesia, Malaysia, Singapore, Thailand Yes

Prey / Diet

Prey / Diet Overlap

Predators

Panthera pardus (Leopard)[6]

Consumers

Parasitized by 
Pedicinus obtusus[6]

Range Map

External References

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 4Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at animaldiversity.org
♦ 5Feeding Ecology of the Proboscis Monkey (Nasalis larvatus), Carey P. Yeager, International Journal of Primatology, Vol. 10, No. 6, 1989, pp. 497-530
♦ 6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0