Veun Sai-Siem Pang National Park: Difference between revisions
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|Veun Sai-Siem Pang National Park | |Veun Sai-Siem Pang National Park | ||
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|McGrath et al. 2023 | |[[#R01872|McGrath et al. 2023]] | ||
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|Veun Sai-Siem Pang National Park | |Veun Sai-Siem Pang National Park | ||
|Fixed point triangulation | |Fixed point triangulation | ||
|McGrath et al. 2023 | |[[#R01872|McGrath et al. 2023]] | ||
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|5.1 Hunting & collecting terrestrial animals | |5.1 Hunting & collecting terrestrial animals | ||
|Low (up to 30% of population affected) | |Low (up to 30% of population affected) | ||
|Gibbons are rarely hunted in the site, reportedly due to a lack of suitable hunting equipment (McGrath et al. 2023). | |Gibbons are rarely hunted in the site, reportedly due to a lack of suitable hunting equipment ([[#R01872|McGrath et al. 2023]]). | ||
|2019-Ongoing (2023) | |2019-Ongoing (2023) | ||
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|5.1.4 Capture for the live animal trade | |5.1.4 Capture for the live animal trade | ||
|Present (unknown severity) | |Present (unknown severity) | ||
|Gibbons are captured for the pet trade (McGrath et al. 2023, McGrath & Behie 2021). | |Gibbons are captured for the pet trade ([[#R01872|McGrath et al. 2023]], [[#R01871|McGrath & Behie 2021]]). | ||
|2019-Ongoing (2023) | |2019-Ongoing (2023) | ||
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|5.3 Logging & wood harvesting | |5.3 Logging & wood harvesting | ||
|Present (unknown severity) | |Present (unknown severity) | ||
|Illegal selective logging is common in the park (McGrath et al. 2023). | |Illegal selective logging is common in the park ([[#R01872|McGrath et al. 2023]]). | ||
|2019-Ongoing (2023) | |2019-Ongoing (2023) | ||
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= References = | = References = | ||
Conservation International Cambodia. (n.d.). Veun Sai–Siem Pang National Park. Conservation International. Retrieved January 28, 2026, from https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park | <span id="R01870"></span>Conservation International Cambodia. (n.d.). Veun Sai–Siem Pang National Park. Conservation International. Retrieved January 28, 2026, from https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park | ||
McGrath, S. J., & Behie, A. M. (2021). Hunting | <span id="R01871"></span>McGrath, S. J., & Behie, A. M. (2021). Hunting Pressure on Primates in Veun Sai-Siem Pang National Park, Cambodia. ''International Journal of Primatology'', 42(4), 563-588. [https://doi.org/10.1007/s10764-021-00219-1 doi:10.1007/s10764-021-00219-1] | ||
McGrath, S. J., Liu, J., Stevenson, B. C., & Behie, A. M. (2023). Density and population size estimates of the endangered northern yellow-cheeked crested gibbon Nomascus annamensis in selectively logged Veun | <span id="R01872"></span>McGrath, S. J., Liu, J., Stevenson, B. C., & Behie, A. M. (2023). Density and population size estimates of the endangered northern yellow-cheeked crested gibbon Nomascus annamensis in selectively logged Veun Sai-Siem Pang National Park in Cambodia using acoustic spatial capture-recapture methods. ''PLOS ONE'', 18(11), e0292386. [https://doi.org/10.1371/journal.pone.0292386 doi:10.1371/journal.pone.0292386] | ||
'''Page created by: '''APES Atlas Team''' Date:''' 2026-04-06 | '''Page created by: '''APES Atlas Team''' Date:''' 2026-04-06 | ||
Revision as of 16:31, 12 October 2026
Asia > Cambodia > Veun Sai-Siem Pang National Park
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Summary
- Northern yellow-cheeked crested gibbons (Nomascus annamensis) are present in Veun Sai-Siem Pang National Park.
- In 2019, it was estimated that 389 (95% CI 284–542) gibbon groups were present in the site.
- The site has a total size of 2,804 km².
- Gibbons at the site are affected by human activities, such as illegal logging, habitat degradation, and hunting.
- Conservation activities include eco-tourism, sustainable agriculture and biodiversity research.
Site characteristics
Veun Sai–Siem Pang National Park, a recognized Key Biodiversity Area, harbors some of the last remaining populations of giant ibis, sun bears, and clouded leopards. Its exceptional biological richness continues to yield new discoveries; for example, Conservation International identified the northern yellow-cheeked crested gibbon here in 2010 ([[ https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park Conservation International Cambodia n.d.]]). The forest is also vital to local communities, providing food, fuelwood, medicinal plants, and fresh water, while supporting livelihoods through ecotourism, agriculture, and freshwater fishing. Veun Sai–Siem Pang encompasses some of the largest remaining ancestral lands of Indigenous peoples within a protected area in Cambodia. These communities maintain deep spiritual connections to the forest but face high levels of poverty, which has at times driven individuals to engage in illegal and environmentally harmful activities as a means of supporting their families (Conservation International Cambodia n.d.).
Table 1. Basic site information for Veun Sai-Siem Pang National Park
| Species | Nomascus annamensis |
| Area | 2,804 km² |
| Coordinates | Lat: 13.972928 , Lon: 106.436660 |
| 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
Table 2. Ape population estimates reported for Veun Sai-Siem Pang 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 annamensis | 2019 | 389 (284-542) | Veun Sai-Siem Pang National Park | Fixed point triangulation | McGrath et al. 2023 | ||||
| 'Nomascus annamensis | 2010 | 456 (421-490) | Veun Sai-Siem Pang National Park | Fixed point triangulation | McGrath et al. 2023 |
Sampling methods Analytical frameworks
Threats
Table 3. Threats to apes reported for Veun Sai-Siem Pang National Park
| Category | Specific threats | Threat level | Description | Year of threat |
|---|---|---|---|---|
| 5 Biological resource use | 5.1 Hunting & collecting terrestrial animals | Low (up to 30% of population affected) | Gibbons are rarely hunted in the site, reportedly due to a lack of suitable hunting equipment (McGrath et al. 2023). | 2019-Ongoing (2023) |
| 5 Biological resource use | 5.1.4 Capture for the live animal trade | Present (unknown severity) | Gibbons are captured for the pet trade (McGrath et al. 2023, McGrath & Behie 2021). | 2019-Ongoing (2023) |
| 5 Biological resource use | 5.3 Logging & wood harvesting | Present (unknown severity) | Illegal selective logging is common in the park (McGrath et al. 2023). | 2019-Ongoing (2023) |
Conservation activities
Conservation International (CI) has been working in the Veun Sai–Siem Pang region since 2009. The organization played a key role in securing legal protection for Veun Sai–Siem Pang National Park, which was designated in 2016. Conservation International supports ranger teams from both government and local communities who patrol the forest, report illegal logging, and raise awareness about the importance of maintaining intact forest ecosystems (Conservation International Cambodia n.d.).
Table 4. Conservation activities reported for Veun Sai-Siem Pang 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 since 2016. | 2016-Ongoing (2026) | |
| 1 Development impact mitigation | Other | Conservation International is working to strengthen the skills and knowledge of local communities to enable them to implement sustainable agriculture, primarily through cashew and cassava farming ([[ https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park Conservation International Cambodia n.d.]]). | Conservation International | Ongoing (2016) |
| 4 Education & awareness | Other | Graduate students are sponsored to research primates at the site; this research provides better understanding of behavioral ecology, feeding patterns, and the impacts of logging and helps monitoring the population ([[ https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park Conservation International Cambodia n.d.]]). | Conservation International | Ongoing (2016) |
| 2 Counter-wildlife crime | 2.8 Provide training to anti-poaching ranger patrols | Rangers receive training not just in patrolling the area, but also in conducting biodiversity surveys ([[ https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park Conservation International Cambodia n.d.]]). | Conservation International | Ongoing (2016) |
| 7 Economic & other incentives | 7.1 Provide monetary benefits to local communities for sustainably managing their forest and its wildlife (e.g., REDD, alternative income, employment) | Conservation International supports local organizations and communities in developing gibbon-viewing ecotourism, providing a sustainable livelihood alternative to logging ([[ https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park Conservation International Cambodia n.d.]]). | Conservation International | Ongoing (2016) |
Challenges
Enablers
Research activities
Documented behaviours
Exposure to climate change impacts
External links
References
Conservation International Cambodia. (n.d.). Veun Sai–Siem Pang National Park. Conservation International. Retrieved January 28, 2026, from https://cambodia.conservation.org/projects/veun-sai-siem-pang-national-park
McGrath, S. J., & Behie, A. M. (2021). Hunting Pressure on Primates in Veun Sai-Siem Pang National Park, Cambodia. International Journal of Primatology, 42(4), 563-588. doi:10.1007/s10764-021-00219-1
McGrath, S. J., Liu, J., Stevenson, B. C., & Behie, A. M. (2023). Density and population size estimates of the endangered northern yellow-cheeked crested gibbon Nomascus annamensis in selectively logged Veun Sai-Siem Pang National Park in Cambodia using acoustic spatial capture-recapture methods. PLOS ONE, 18(11), e0292386. doi:10.1371/journal.pone.0292386
Page created by: APES Atlas Team Date: 2026-04-06