Long Luong Commune

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Summary

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Leaflet

• Northern white-cheeked gibbons (Nomascus leucogenys) are present in Long Luong Commune.
• Two groups are reported to inhabit the site (one group confirmed through a survey).
• The gibbon population trend is unknown.
• The size of the area is unknown.
• Key threats to gibbons are hunting and shifting agriculture leading to forest fragmentation.
• Conservation activities are not documented.

Site characteristics

The site is located in northern Vietnam.

Table 1. Basic site information for Long Luong Commune

Species	'Nomascus leucogenys
Area
Coordinates	Lat: 20.922784 , Lon: 104.759137
Type of site	Non-protected area
Habitat types	Subtropical/tropical moist lowland forest
Type of governance

IUCN habitat categories Site designations

Ape status

In 2011, a short survey documented one out of two gibbon groups that had been reported at the site by local villagers. The groups are located on either side of a valley entirely used by local communities (Rawson et al. 2011). Village interviews indicate that the gibbons in the site are white-cheeked gibbons; however, field observations were not able to confirm this. Furthermore, museum specimens of N. concolor were collected in a nearby area (Long Sap Commune) in 1963 (Rawson et al. 2011).

Table 2. Ape population estimates reported for Long Luong Commune

Species	Year	Total number indiv. (95% CI)	Total number groups (95% CI)	Density ​​[groups/km²​] (95% CI)	Area	Method	Source	Comments	A.P.E.S. database ID	NA	NA
Nomascus leucogenys	2011			2		Long Luong Commune, unknown size of area	Interviews		Rawson et al. 2011	One group was confirmed during a short survey; based on interviews with local villagers, there are two groups.

Threats

The population is no longer viable, being so small and the two groups separated from one another (Rawson et al. 2011). Wildlife in the area are threatened by hunting and shifting agriculture, which has left small isolated patches of forest. Several years ago, local villagers of Mong ethnicity protected local gibbon groups because they were perceived as harmless and there was a local superstition that killing gibbons can bring bad luck (Rawson et al. 2011).

Table 3. Threats to apes reported for Long Luong Commune

Category	Specific threats	Threat level	Description	Year of threat
10 Geological events		Absent
12 Other threat		Absent
2 Agriculture & aquaculture	2.1 Annual & perennial non-timber crops	Present (unknown severity)	Shifting agriculture leading to forest fragmentation (Rawson et al. 2011).	Ongoing (2011)
5 Biological resource use	5.1 Hunting & collecting terrestrial animals	Present (unknown severity)	Hunting in the area from outsiders (Rawson et al. 2011).	Ongoing (2011)
1 Residential & commercial development		Unknown
3 Energy production & mining		Unknown
4 Transportation & service corridors		Unknown
6 Human intrusions & disturbance		Unknown
7 Natural system modifications		Unknown
8 Invasive & other problematic species, genes & diseases		Unknown
9 Pollution		Unknown
11 Climate change & severe weather		Unknown

IUCN Threats list

Challenges

Table 5. Challenges reported for Long Luong Commune

Challenges	Specific challenges	Source	Year(s)
	Not reported

Enablers

Table 6. Enablers reported for Long Luong Commune

Enablers	Specific enablers	Source	Year(s)
1 Site management
2 Resources and capacity
3 Engaged community
4 Institutional support
5 Ecological context
6 Safety and stability

Documented behaviours

Table 7. Behaviours documented for Long Luong Commune

Behavior	Source
Not reported

References

Rawson, B. M, Insua-Cao, P., Nguyen Manh Ha, Van Ngoc Thinh, Hoang Minh Duc, Mahood, S., Geissmann, T. and Roos, C. 2011. The Conservation Status of Gibbons in Vietnam. Fauna & Flora International/Conservation International, Hanoi, Vietnam.

Page created by: A.P.E.S. Wiki team Date: NA