Critically Endangered
Southern white-cheeked gibbon
Nomascus siki
Southern white-cheeked gibbon is a primate in the family Hylobatidae (order Primates) — Nomascus siki, recorded as Critically Endangered.
Appearance
The southern white-cheeked gibbon is a gibbon, native to Vietnam and Laos. It is closely related to the northern white-cheeked gibbon (Nomascus leucogenys) and the yellow-cheeked gibbon (Nomascus gabriellae). It has previously been identified as a subspecies of each of these.
Range and habitat
The species lives in lowland broadleaf forest, with some populations living in forested mountainous areas. The original distribution covered an area of central Vietnam and central Laos, ranging from the Nam Theun (Khading) and Rao Nay rivers in the north (approximately 19th parallel north) to the Banghiang and Thach Han rivers in the south (approximately 17th parallel north). Within its original distribution, the species is still common in the remaining large forest blocks in Laos, but in Vietnam the populations are scattered due to human encroachment on their habitat for logging and farming.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
In crisis
CITES lists this taxon on Appendix I. Confirm the current appendix on the CITES checklist.
Southern white-cheeked gibbon is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Southern white-cheeked gibbon, Wikidata item Q1365814. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
