Nui Ong Nature Reserve

Asia > Vietnam > Nui Ong Nature Reserve

Summary

Loading map...

{"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"300px","height":"200px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":5,"defzoom":14,"layers":["OpenStreetMap","OpenTopoMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":false,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003ENui Ong Nature Reserve\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EYellow-cheeked gibbons\n\u003C/p\u003E\u003C/div\u003E","title":"Nui Ong Nature Reserve\n","link":"","lat":11.059720999999999690999175072647631168365478515625,"lon":107.765614999999996825863490812480449676513671875,"icon":""}],"imageoverlays":null}

• Yellow-cheeked gibbons (Nomascus gabriellae) are present in Nui Ong Nature Reserve.
• A minimum of three groups were estimated to inhabit the site in 2010.
• The population trend is unknown.
• The site has a total size of 255 km².
• Key threats to gibbons are hunting, illegal logging, fires and exploitation of non-timber forest products.
• Conservation activities include community-based patrolling and an awareness campaign.

Site characteristics

The nature reserve is located in Binh Thuan Province, Vietnam. The site supports the southernmost populations of N. gabriellae in Vietnam (Rawson et al. 2011).

Table 1. Basic site information for Nui Ong Nature Reserve

Area	255 km²
Coordinates	11.059721, 107.765615
Designation	Nature Reserve
Habitat types	Subtropical/tropical moist lowland forest

IUCN habitat categories Site designations

Ape status

In 2009 and 2010, at least three groups of N. gabriellae were recorded (Hoang Minh Duc 2010 as cited by Rawson et al. 2011). The total N. gabriellae population is unknown- a survey is needed to update their status in the reserve.

Table 2. Ape population estimates in Nui Ong 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
Nomascus gabriellae	2009-2010		3		entire site, 255 km²	Unknown	Rawson et al. 2011	Minimum of three groups.

Threats

The main threats to gibbons in the reserve are hunting, agricultural encroachment, illegal logging, exploitation of non-timber forest products and forest fires. The site is surrounded by six communes with over 40,000 people. Wildlife meat, including from primates, is sold at restaurants nearby (Rawson et al. 2011).

Table 3. Threats to apes in Nui Ong Nature Reserve

Category	Specific threats	Threat level	Quantified severity	Description	Year of threat
1. Residential & commercial development		Unknown
2. Agriculture & aquaculture	2.1 Annual & perennial non-timber crops	High		Agricultural encroachment (Rawson et al. 2011).	Ongoing (2011)
3. Energy production & mining		Unknown
4. Transportation & service corridors		Unknown
5. Biological resource use	5.1 Hunting & collecting terrestrial animals	High		Illegal hunting with guns (Rawson et al. 2011).	Ongoing (2011)
	5.2 Gathering terrestrial plants	High		Exploitation of non-timber forest products (Rawson et al. 2011).	Ongoing (2011)
	5.3 Logging & wood harvesting	High		Illegal logging (Rawson et al. 2011).	Ongoing (2011)
6. Human intrusion & disturbance		Unknown
7. Natural system modifications	7.1 Fire & fire suppression	High		Forest fires (Rawson et al. 2011).	Ongoing (2011)
8. Invasive & other problematic species, genes, diseases		Unknown
9. Pollution		Unknown
10. Geological Events		Absent
11. Climate change & severe weather		Unknown
12. Other options		Absent

IUCN Threats list

Conservation activities

A small project to strengthen management capacity and a community awareness campaign was conducted in the reserve in 2008. Since 2008, nine community-based patrol teams have operated to prevent forest fire, encroachment, illegal logging and hunting (Rawson et al. 2011).

Table 4. Conservation activities in Nui Ong Nature Reserve

Category	Specific activity	Description	Year of activity
1. Residential & commercial development	Not reported
2. Agriculture & aquaculture	Not reported
3. Energy production & mining	Not reported
4. Transportation & service corridors	Not reported
5. Biological resource use	5.16. Implement community control of patrolling, banning hunting and removing snares	Community-based patrol teams have operated to prevent forest fire, encroachment, illegal logging and hunting (Rawson et al. 2011).	Ongoing (2011)
6. Human intrusion & disturbance	Not reported
7. Natural system modifications	Not reported
8. Invasive & other problematic species, genes, diseases	Not reported
9. Pollution	Not reported
10. Education & Awareness	10.1. Educate local communities about primates and sustainable use	Community awareness campaign (Rawson et al. 2011).	2008
11. Habitat Protection	11.2. Legally protect primate habitat		Ongoing (2023)
12. Species Management	Not reported
13. Livelihood; Economic & Other Incentives	Not reported

Conservation activities list (Junker et al. 2017)

Challenges

Table 5. Challenges reported for Nui Ong Nature Reserve

Challenge	Source
Not reported

Research activities

Documented behaviours

Table 6. Ape behaviors reported for Nui Ong 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 completed by: A.P.E.S. Wiki team Date: 03/04/2023