Difference between revisions of "Huong Son Forest"
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+ | [[Asia]] > [[Vietnam]] > [[Huong Son Forest]] | ||
− | + | = Summary = <!-- An overview of the site, with one sentence for each section. May include a site map --> | |
− | + | <div style="float: right"> | |
− | = Summary = | + | {{#display_map: height=200px | width=300px | scrollzoom=off | zoom=5 | layers= OpenStreetMap, OpenTopoMap |
− | + | |18.522052, 105.244000~[[Huong Son Forest]]~Northern white-cheeked gibbon | |
− | * | + | }} |
− | * | + | </div> |
− | * | + | * Northern white-cheeked gibbons (''Nomascus leucogenys'') are present in Huong Son Forest. |
− | * | + | * It has been estimated that a minimum of 3 groups occur in the site. |
− | * Key threats to | + | * The gibbon population trend is unknown. |
− | * | + | * The site has a total size of 300 km². |
− | + | * Key threats to gibbons are hunting and logging. | |
− | + | * Conservation activities are not documented. | |
− | |||
+ | = Site characteristics = <!-- A paragraph summary of physical and geographic aspects of the site, and a table of key information --> | ||
− | + | The site is located in north-central Vietnam, in the province of Ha Tinh. Part of the site is managed by the Huong Son State Forest Company, and the other part is designated as the ‘Ngan Pho River Protection Forest’ (Rawson et al. 2011). | |
− | + | '''Table 1. Basic site information for Huong Son Forest''' | |
− | |||
− | '''Table 1 | ||
{| border="1" cellpadding="5" cellspacing="0" class="basic-information" | {| border="1" cellpadding="5" cellspacing="0" class="basic-information" | ||
− | | Area | + | | Area <!-- Please include units: km2/ha e.g 200ha --> |
− | | | + | |300 km² |
|- | |- | ||
− | | Coordinates | + | |Coordinates |
− | | | + | |18.522052, 105.244000 |
|- | |- | ||
− | | Designation | + | |Designation |
− | | | + | |Timber concession and protection forest |
|- | |- | ||
− | |Habitat types | + | |Habitat types <!-- List IUCN Habitat Classification 3.0 categories present (without number), see link below --> |
− | | | + | |Plantations, subtropical/tropical moist lowland forest |
|} | |} | ||
− | [ | + | [https://www.iucnredlist.org/resources/habitat-classification-scheme IUCN habitat categories] [[Site designations]] |
− | |||
− | |||
− | |||
− | |||
− | |||
+ | = Ape status = <!--An overview of ape population status (population sizes, trends, etc.), followed by a table of specific surveys and results --> | ||
+ | A 2011 survey confirmed at least three gibbon groups in Son Kim 2 Commune and one group in Song Hon Commune, and according to interviews, a few groups are found in the border area with Laos. In the late 1990s and early 2000s gibbons were recorded on several occasions (Rawson et al. 2011). | ||
− | + | '''Table 2. Ape population estimates in Huong Son Forest''' | |
− | |||
− | |||
− | |||
− | '''Table 2 | ||
{| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table" | {| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table" | ||
! Species | ! Species | ||
! Year | ! Year | ||
− | ! | + | ! Total number indiv. (95% CI) |
− | ! | + | ! Total number groups (95% CI) |
− | ! | + | ! Density [groups/km²] (95% CI) |
! Area | ! Area | ||
! Method | ! Method | ||
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! A.P.E.S. database ID | ! A.P.E.S. database ID | ||
|- | |- | ||
+ | |''Nomascus leucogenys'' | ||
+ | |2011 | ||
| | | | ||
+ | |3 | ||
| | | | ||
− | | | + | |Huong Son Forest |
− | | | + | |Unknown |
− | | | + | |Nguyen Manh Ha et al. 2011 |
− | |||
− | |||
− | |||
| | | | ||
| | | | ||
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= Threats = <!-- a text overview of threats, followed by a table of key threats --> | = Threats = <!-- a text overview of threats, followed by a table of key threats --> | ||
+ | In 2010, Hương Sơn had 74.6kha of natural forest, extending over 76% of its land area. In 2021, it lost 679ha of natural forest, equivalent to 352kt of CO₂ emissions ([https://www.globalforestwatch.org/ Global Forest Watch]). | ||
− | + | '''Table 3. Threats to apes in Huong Son Forest''' | |
− | |||
− | |||
− | '''Table 3 | ||
{| border="1" cellpadding="5" cellspacing="0" class="threats-table" | {| border="1" cellpadding="5" cellspacing="0" class="threats-table" | ||
− | !align="left"|Category | + | !align="left"|Category <!-- PLEASE DO NOT CHANGE THE THREAT CATEGORIES --> |
− | !Specific threats | + | !Specific threats <!-- For specific threats, please use list of comma separated keywords from the IUCN list linked below --> |
− | !Threat level | + | !Threat level <!-- For threat level, please use keywords: low, medium, high, present, absent, unknown--> |
− | !Quantified severity <!-- e.g., encounter | + | !Quantified severity <!-- Enter any available quantification of the threat, e.g., the proportion of the area affected by the threat, hunting sign encounter rates--> |
− | !Description | + | !Description <!-- Add descriptive information --> |
− | !Year of threat | + | !Year of threat <!-- Enter specific year(s), “ongoing”, or “unknown”. If the threat is ongoing, please add the year of reference in parentheses --> |
|- | |- | ||
|1. Residential & commercial development | |1. Residential & commercial development | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|2. Agriculture & aquaculture | |2. Agriculture & aquaculture | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|3. Energy production & mining | |3. Energy production & mining | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|4. Transportation & service corridors | |4. Transportation & service corridors | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|- | |- | ||
|5. Biological resource use | |5. Biological resource use | ||
+ | |5.1 Hunting & collecting terrestrial animals | ||
+ | |High | ||
+ | |Between 1987 and 1992 at least 10 gibbons were apparently hunted in the site (Rawson et al. 2011). | ||
+ | |Hunting and capturing. | ||
+ | |Ongoing (2011) | ||
+ | |- | ||
| | | | ||
+ | |5.3 Logging & wood harvesting | ||
+ | |High | ||
| | | | ||
− | | | + | |Extensive commercial logging and illegal logging (Rawson et al. 2011). |
− | | | + | |Ongoing (2011) |
− | |||
|- | |- | ||
− | |6. Human | + | |6. Human intrusion & disturbance |
− | |||
| | | | ||
+ | |Unknown | ||
| | | | ||
| | | | ||
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|7. Natural system modifications | |7. Natural system modifications | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|8. Invasive & other problematic species, genes, diseases | |8. Invasive & other problematic species, genes, diseases | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|9. Pollution | |9. Pollution | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|10. Geological Events | |10. Geological Events | ||
| | | | ||
− | | | + | |Absent |
| | | | ||
| | | | ||
| | | | ||
|- | |- | ||
− | |11. Climate change & severe weather | + | | 11. Climate change & severe weather |
− | |||
| | | | ||
+ | |Unknown | ||
| | | | ||
| | | | ||
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|12. Other options | |12. Other options | ||
| | | | ||
− | | | + | |Absent |
| | | | ||
| | | | ||
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[https://www.iucnredlist.org/resources/threat-classification-scheme IUCN Threats list] | [https://www.iucnredlist.org/resources/threat-classification-scheme IUCN Threats list] | ||
+ | = Conservation activities = <!-- A summary of the conservation activities, followed by a table of key activities --> | ||
− | + | '''Table 4. Conservation activities in Huong Son Forest''' | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | '''Table 4 | ||
{| border="1" cellpadding="5" cellspacing="0" class="conservation-actions-table" | {| border="1" cellpadding="5" cellspacing="0" class="conservation-actions-table" | ||
− | !align="left"|Category | + | !align="left"|Category <!-- PLEASE DO NOT CHANGE THE CATEGORIES --> |
− | !Specific activity | + | !Specific activity <!-- For specific threats, please use list from the list linked below, OR enter “Not reported” --> |
− | !Description | + | !Description <!-- Add descriptive information --> |
− | !Year of activity | + | !Year of activity <!-- Add descriptive information --> |
|- | |- | ||
|1. Residential & commercial development | |1. Residential & commercial development | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|2. Agriculture & aquaculture | |2. Agriculture & aquaculture | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|3. Energy production & mining | |3. Energy production & mining | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|4. Transportation & service corridors | |4. Transportation & service corridors | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|5. Biological resource use | |5. Biological resource use | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
− | |6. Human | + | |6. Human intrusion & disturbance |
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|7. Natural system modifications | |7. Natural system modifications | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|8. Invasive & other problematic species, genes, diseases | |8. Invasive & other problematic species, genes, diseases | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|9. Pollution | |9. Pollution | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|10. Education & Awareness | |10. Education & Awareness | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|11. Habitat Protection | |11. Habitat Protection | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|12. Species Management | |12. Species Management | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|13. Livelihood; Economic & Other Incentives | |13. Livelihood; Economic & Other Incentives | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
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[[Conservation activities list (Junker et al. 2017)]] | [[Conservation activities list (Junker et al. 2017)]] | ||
+ | = Challenges = <!-- Overview of challenges in ape conservation --> | ||
− | + | '''Table 5. Challenges reported for Huong Son Forest''' | |
− | + | {| border="1" cellpadding="5" cellspacing="0" class="challenges-table" | |
− | + | !align="left"|Challenge <!-- Do not change categories --> | |
− | + | !Source <!-- Source for challenge mentioned --> | |
− | |||
− | |||
− | '''Table 5 | ||
− | {| border="1" cellpadding="5" cellspacing="0" class=" | ||
− | !align="left"| | ||
− | !Source | ||
|- | |- | ||
− | | | + | |Not reported |
| | | | ||
|- | |- | ||
|} | |} | ||
− | |||
− | |||
= Research activities = <!-- Overview of research activities --> | = Research activities = <!-- Overview of research activities --> | ||
− | |||
− | |||
− | |||
===Documented behaviours=== <!-- List of any behaviours observed at the site, including citations --> | ===Documented behaviours=== <!-- List of any behaviours observed at the site, including citations --> | ||
− | '''Table 6 | + | '''Table 6. Ape behaviors reported for Huong Son Forest''' |
{| border="1" cellpadding="5" cellspacing="0" class="behaviors-table" | {| border="1" cellpadding="5" cellspacing="0" class="behaviors-table" | ||
− | !align="left"|Behavior | + | !align="left"|Behavior |
− | !Source | + | !Source |
|- | |- | ||
− | | | + | |Not reported |
| | | | ||
|- | |- | ||
|} | |} | ||
− | + | =External links= | |
− | == | ||
− | |||
− | |||
− | |||
− | |||
= References = | = References = | ||
− | + | Nguyen Manh Ha, Do Tuoc, and Le Van Dung (2011). [Survey of white-cheeked gibbons (Nomascus leucogenys) in Vu Quang National Park and Huong Son Forestry Company, Ha Tinh]. Centre for Natural Resources and Environmental Studies (CRES), Hanoi, Vietnam (in Vietnamese). <br> | |
+ | 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. <br> | ||
<br> | <br> | ||
− | '''Page completed by:''' | + | '''Page completed by: '''A.P.E.S. Wiki team''' Date:'''05/05/2023 <!-- If you don't want to add your name, you can add "A.P.E.S. Wiki team" --> |
− | |||
− | |||
− |
Latest revision as of 05:47, 8 May 2023
Asia > Vietnam > Huong Son Forest
Summary
- Northern white-cheeked gibbons (Nomascus leucogenys) are present in Huong Son Forest.
- It has been estimated that a minimum of 3 groups occur in the site.
- The gibbon population trend is unknown.
- The site has a total size of 300 km².
- Key threats to gibbons are hunting and logging.
- Conservation activities are not documented.
Site characteristics
The site is located in north-central Vietnam, in the province of Ha Tinh. Part of the site is managed by the Huong Son State Forest Company, and the other part is designated as the ‘Ngan Pho River Protection Forest’ (Rawson et al. 2011).
Table 1. Basic site information for Huong Son Forest
Area | 300 km² |
Coordinates | 18.522052, 105.244000 |
Designation | Timber concession and protection forest |
Habitat types | Plantations, subtropical/tropical moist lowland forest |
IUCN habitat categories Site designations
Ape status
A 2011 survey confirmed at least three gibbon groups in Son Kim 2 Commune and one group in Song Hon Commune, and according to interviews, a few groups are found in the border area with Laos. In the late 1990s and early 2000s gibbons were recorded on several occasions (Rawson et al. 2011).
Table 2. Ape population estimates in Huong Son Forest
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 leucogenys | 2011 | 3 | Huong Son Forest | Unknown | Nguyen Manh Ha et al. 2011 |
Threats
In 2010, Hương Sơn had 74.6kha of natural forest, extending over 76% of its land area. In 2021, it lost 679ha of natural forest, equivalent to 352kt of CO₂ emissions (Global Forest Watch).
Table 3. Threats to apes in Huong Son Forest
Category | Specific threats | Threat level | Quantified severity | Description | Year of threat |
---|---|---|---|---|---|
1. Residential & commercial development | Unknown | ||||
2. Agriculture & aquaculture | Unknown | ||||
3. Energy production & mining | Unknown | ||||
4. Transportation & service corridors | Unknown | ||||
5. Biological resource use | 5.1 Hunting & collecting terrestrial animals | High | Between 1987 and 1992 at least 10 gibbons were apparently hunted in the site (Rawson et al. 2011). | Hunting and capturing. | Ongoing (2011) |
5.3 Logging & wood harvesting | High | Extensive commercial logging and illegal logging (Rawson et al. 2011). | Ongoing (2011) | ||
6. Human intrusion & disturbance | Unknown | ||||
7. Natural system modifications | Unknown | ||||
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 |
Conservation activities
Table 4. Conservation activities in Huong Son Forest
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 | Not reported | ||
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 | Not reported | ||
11. Habitat Protection | Not reported | ||
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 Huong Son Forest
Challenge | Source |
---|---|
Not reported |
Research activities
Documented behaviours
Table 6. Ape behaviors reported for Huong Son Forest
Behavior | Source |
---|---|
Not reported |
External links
References
Nguyen Manh Ha, Do Tuoc, and Le Van Dung (2011). [Survey of white-cheeked gibbons (Nomascus leucogenys) in Vu Quang National Park and Huong Son Forestry Company, Ha Tinh]. Centre for Natural Resources and Environmental Studies (CRES), Hanoi, Vietnam (in Vietnamese).
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:05/05/2023