Ben En National Park
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Summary
- Northern white-cheeked gibbons (Nomascus leucogenys) may be present in Ben En National Park.
- The population size is unknown.
- The population trend is decreasing.
- The site has a total size of 147.4 km².
- Logging is the main threat to gibbons in the area.
- Conservation activities are not documented.
Site characteristics
Ben En National Park was established as a national park in 1992. The site includes a wide and diverse system of lakes, caves, mountains and forest that is utilized to develop ecotourism. Ben En River and Muc River are the two biggest rivers there (Frontier Vietnam 2000).
Table 1. Basic site information for Ben En National Park
| Species | Nomascus leucogenys |
| Area | 147.4 km² |
| Coordinates | Lat: 19.566729 , Lon: 105.452144 |
| Type of site | Protected area (National Park) |
| Habitat types | Subtropical/tropical moist lowland forest |
| Type of governance |
Types of sites Governance types Habitat types
Ape status
Information from park staff in 2009 suggests only one gibbon group remains and that 2-3 groups are situated outside the park boundary. Before that, gibbons were last recorded in 1997-1998; all sightings and vocalizations may have been of the same group (Rawson et al. 2011).
Table 2. Ape population estimates reported for Ben En National Park
| Species | Year | Total number groups (95% CI) | Density [groups/km²] (95% CI) | Total number indiv. (95% CI) | Area | Method | Source | Comments | A.P.E.S. database ID |
|---|---|---|---|---|---|---|---|---|---|
| Nomascus leucogenys | 2009 | 1 | Ben En National Park | Interviews | Rawson et al. 2011 |
Sampling methods Analytical frameworks
Threats
Table 3. Threats to apes reported for Ben En National Park
| Category | Specific threats | Threat level | Description | Year of threat |
|---|---|---|---|---|
| 5 Biological resource use | 5.3 Logging & wood harvesting | High (more than 70% of population affected) | Extensive commercial logging occurred in the park until 1992 and since then, small-scale illegal logging has continued (Rawson et al. 2011). | Ongoing (2011) |
Conservation activities
Table 4. Conservation activities reported for Ben En National Park
| Category | Specific activity | Description | Implementing organization(s) | Year of activity |
|---|---|---|---|---|
| 5 Protection & restoration | 5.2 Legally protect ape habitat | The site is a national park. | Ongoing (2026) |
Challenges
Table 5. Challenges reported for Ben En National Park
| Challenges | Specific challenges | Source | Year(s) |
|---|---|---|---|
| Not reported |
Enablers
Table 6. Enablers reported for Ben En National Park
| 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 |
Research activities
Documented behaviours
Table 7. Behaviours documented for Ben En National Park
| Category | Behavior | Observation type | Prevalence | Observation dates | Source | Habituation | Species | Comment |
|---|---|---|---|---|---|---|---|---|
| Not reported |
Exposure to climate change impacts
External links
References
Frontier Vietnam (2000) Tordoff, A., Fanning, E. & Grindley, M. (eds) Ben En National Park: A Biodiversity Survey. Frontier Vietnam Environmental Research Report 18. Society for Environmental Exploration, UK and Institute of Ecology and Biological Resources, Hanoi and Darwin Initiative.
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: APES Atlas Team Date: 2023-05-05