Sop Cop Nature Reserve

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Summary

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• Northern white-cheeked gibbons (Nomascus leucogenys) are present in Sop Cop Nature Reserve.
• Gibbons are absent in the reserve.
• The site has a total size of 187 km².
• Key threats to gibbons are hunting, logging, and agricultural expansion.
• Conservation activities are not documented.

Site characteristics

Table 1. Basic site information for Sop Cop Nature Reserve

Species	Nomascus leucogenys
Area	187 km²
Coordinates	Lat: 20.977205 , Lon: 103.657088
Type of site	Protected area (Nature Reserve)
Habitat types	Subtropical/tropical moist lowland forest
Type of governance

Types of sites Governance types Habitat types

Ape status

In 2011, a group of five individuals was seen in a forest patch of about 300 ha in Sai Khao Village, Muong Cai Commune. However, no gibbons were detected in the nature reserve itself (Rawson et al. 2011). Based on a large mammal survey conducted later in 2011, the population of gibbons in the reserve is now extirpated, but one group of 3-4 individuals was recorded in the buffer zone. Local reports of gibbons had been documented in previous wildlife surveys in the 90s (Rawson et al. 2011).

Table 2. Ape population estimates reported for Sop Cop Nature Reserve

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		0			Sop Cop Nature Reserve	Unknown		Nguyen Manh Ha pers. comm as cited by Rawson et al. 2011	A group of five individuals was seen in a forest nearby.

Threats

The main threats to gibbons and other wildlife in the reserve are hunting, logging, and forest loss due to the expansion of agricultural land; forest fires from human encroachment also occur annually (Rawson et al. 2011).

Table 3. Threats to apes reported for Sop Cop Nature Reserve

Category	Specific threats	Threat level	Description	Year of threat
2 Agriculture & aquaculture	2.1 Annual & perennial non-timber crops	High (more than 70% of population affected)	Habitat encroachment as a result of agricultural activities (Rawson et al. 2011).	Ongoing (2011)
5 Biological resource use	5.1 Hunting & collecting terrestrial animals	High (more than 70% of population affected)	Hunting is common in the reserve (Rawson et al. 2011).	Ongoing (2011)
5 Biological resource use	5.3 Logging & wood harvesting	High (more than 70% of population affected)	As of 2011, due to logging and other human activities, the forest area has diminished to approximately 4,000 ha and is increasingly isolated from surrounding forests, including those in Laos (Rawson et al. 2011).	Ongoing (2011)
7 Natural system modifications	7.1 Fire & fire suppression	High (more than 70% of population affected)	Forest fires from land encroachment occur annually (Rawson et al. 2011).	Ongoing (2011)
10 Geological events		Absent
12 Other threat		Absent
1 Residential & commercial development		Unknown
3 Energy production & mining		Unknown
4 Transportation & service corridors		Unknown
6 Human intrusions & disturbance		Unknown
8 Invasive & other problematic species, genes & diseases		Unknown
9 Pollution		Unknown
11 Climate change & severe weather		Unknown

Threats

Challenges

Table 5. Challenges reported for Sop Cop Nature Reserve

Challenges	Specific challenges	Source	Year(s)
	Not reported

Enablers

Table 6. Enablers reported for Sop Cop Nature Reserve

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 Sop Cop Nature Reserve

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