Usun Apau National Park - Revision history

WikiEdit at 20:31, 12 October 2026

2026-10-12T20:31:37Z

← Older revision		Revision as of 16:31, 12 October 2026
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	= Site characteristics =		= Site characteristics =

	Usun Apau National Park is described as pristine area known for its waterfalls. The government aims to develop ecotourism at Usun Apau National Park (Sarawak Tribune 2022). Usun Apau was also proposed to be included in the extension of the Heart of Borneo as part of Extended Baram Complex (Mathai et al. 2016). Other species such as ''Presbytis hosei'' and ''Presbytis rubicunda ignita'' are found in this national park (Ang et al.2024).		Usun Apau National Park is described as pristine area known for its waterfalls. The government aims to develop ecotourism at Usun Apau National Park ([[#R01869\|Sarawak Tribune 2022]]). Usun Apau was also proposed to be included in the extension of the Heart of Borneo as part of Extended Baram Complex ([[#R01868\|Mathai et al. 2016]]). Other species such as ''Presbytis hosei'' and ''Presbytis rubicunda ignita'' are found in this national park (Ang et al.2024).

	'''Table 1. Basic site information for Usun Apau National Park'''		'''Table 1. Basic site information for Usun Apau National Park'''
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	= Ape status =		= Ape status =

	As the site is located near the presumed distribution boundary between ''P. p. pygmaeus'' and ''P. p. morio'', the subspecies observed there cannot be determined with certainty (Ampeng et al. 2021).		As the site is located near the presumed distribution boundary between ''P. p. pygmaeus'' and ''P. p. morio'', the subspecies observed there cannot be determined with certainty ([[#R01866\|Ampeng et al. 2021]]).

	'''Table 2. Ape population estimates reported for Usun Apau National Park'''		'''Table 2. Ape population estimates reported for Usun Apau National Park'''
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	\|Aerial (drones/plane/helicopter)		\|Aerial (drones/plane/helicopter)
	\|		\|
	\|Ampeng et al. 2021		\|[[#R01866\|Ampeng et al. 2021]]
	\|Aerial surveys fitted with FLIR-cameras were unable to confirm the presence of additional nests from daytime aerial photographs.		\|Aerial surveys fitted with FLIR-cameras were unable to confirm the presence of additional nests from daytime aerial photographs.
	\|		\|
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	\|Line transects		\|Line transects
	\|		\|
	\|Ampeng et al. 2021		\|[[#R01866\|Ampeng et al. 2021]]
	\|The survey using line transects found one individual Bornean orangutan and 4 orangutan nests.		\|The survey using line transects found one individual Bornean orangutan and 4 orangutan nests.
	\|		\|
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	= References =		= References =

	Ampeng, A., Liam, J., Simpson, B., Traelholt, C., Nor, S~~. M~~., Abdan-Saleman, M. S. B., … Md-Zain, B. M. (2021). First Bornean orangutan sighting in Usun Apau National Park, Sarawak. Biodiversity Data Journal, 9, e60753. ~~<br>~~		<span id="R01866"></span>Ampeng, A., Liam, J., Simpson, B., Traelholt, C., Md Nor, S., Abdan-Saleman, M. S. B., …, & Md-Zain, B. M. (2021). First Bornean orangutan sighting in Usun Apau National Park, Sarawak. ''Biodiversity Data Journal'', 9. [https://doi.org/10.3897/bdj.9.e60753 doi:10.3897/bdj.9.e60753]

	Ang, A., Brandon-Jones, D., Ruppert, N., Lee, Z. H., Affendi, A., Stanly Anyie, Y., Boonratana, R., Cheyne, S. M., Chua, A., Hayunieta, Irawan, A., Jerusalinsky, L., Karuniawati, A., Khalid, S., Koh, J., Lee, C., Lhota, S., Lwin, N., Mittermeier, R. A., … Roos, C. (2024). Asian langurs (Presbytis) conservation action plan 2024–2034. IUCN. https://portals.iucn.org/library/node/51546 ~~<br>~~		<span id="R01867"></span>Ang, A., Brandon-Jones, D., Ruppert, N., Lee, Z. H., Affendi, A., Stanly Anyie, Y., Boonratana, R., Cheyne, S. M., Chua, A., Hayunieta, Irawan, A., Jerusalinsky, L., Karuniawati, A., Khalid, S., Koh, J., Lee, C., Lhota, S., Lwin, N., Mittermeier, R. A., … Roos, C. (2024). Asian langurs (Presbytis) conservation action plan 2024–2034. IUCN. https://portals.iucn.org/library/node/51546

	Mathai, J., Duckworth, J. W., Meijaard, E., Fredriksson, G., Hon, J., Sebastian, A., … Wilting, A. (2016). Carnivore conservation planning on Borneo: Identifying key carnivore landscapes, research priorities and conservation interventions. Raffles Bulletin of Zoology. ~~<br>~~		<span id="R01868"></span>Mathai, J., Duckworth, J. W., Meijaard, E., Fredriksson, G., Hon, J., Sebastian, A., … Wilting, A. (2016). Carnivore conservation planning on Borneo: Identifying key carnivore landscapes, research priorities and conservation interventions. Raffles Bulletin of Zoology.

	Sarawak Tribune. (2022). Government to develop Usun Apau as tourist attraction. https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/ ~~<br>~~		<span id="R01869"></span>Sarawak Tribune. (2022). Government to develop Usun Apau as tourist attraction. https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/ [https://web.archive.org/web/20230312195543/https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/ link]

WikiEdit at 14:51, 1 September 2026

2026-09-01T14:51:41Z

← Older revision		Revision as of 10:51, 1 September 2026
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	= References =		= References =

	Ampeng, A., Liam, J., Simpson, B., Traelholt, C., Nor, S. M., Abdan-Saleman, M. S. B., ~~... &~~ Md-Zain, B. M. (2021). First Bornean orangutan sighting in Usun Apau National Park, Sarawak. Biodiversity ~~data journal~~, 9, e60753. <br>		Ampeng, A., Liam, J., Simpson, B., Traelholt, C., Nor, S. M., Abdan-Saleman, M. S. B., … Md-Zain, B. M. (2021). First Bornean orangutan sighting in Usun Apau National Park, Sarawak. Biodiversity Data Journal, 9, e60753. <br>

	Ang, A., Brandon-Jones, D., Ruppert, N., Lee, Z. H., Affendi, A., Stanly Anyie, Y., Boonratana, R., Cheyne, S. M., Chua, A., Hayunieta, Irawan, A., Jerusalinsky, L., Karuniawati, A., Khalid, S., Koh, J., Lee, C., Lhota, S., Lwin, N., Mittermeier, R. A., … Roos, C. (2024). Asian langurs (Presbytis) conservation action plan 2024–2034. IUCN. https://portals.iucn.org/library/node/51546 <br>		Ang, A., Brandon-Jones, D., Ruppert, N., Lee, Z. H., Affendi, A., Stanly Anyie, Y., Boonratana, R., Cheyne, S. M., Chua, A., Hayunieta, Irawan, A., Jerusalinsky, L., Karuniawati, A., Khalid, S., Koh, J., Lee, C., Lhota, S., Lwin, N., Mittermeier, R. A., … Roos, C. (2024). Asian langurs (Presbytis) conservation action plan 2024–2034. IUCN. https://portals.iucn.org/library/node/51546 <br>
	Mathai, J., Duckworth, J. W., Meijaard, E., Fredriksson, G., Hon, J., Sebastian, A., ~~... &~~ Wilting, A. (2016). Carnivore conservation planning on Borneo: ~~identifying~~ key carnivore landscapes, research priorities and conservation interventions. Raffles Bulletin of Zoology. <br>
			Mathai, J., Duckworth, J. W., Meijaard, E., Fredriksson, G., Hon, J., Sebastian, A., … Wilting, A. (2016). Carnivore conservation planning on Borneo: Identifying key carnivore landscapes, research priorities and conservation interventions. Raffles Bulletin of Zoology. <br>

	Sarawak Tribune. (2022). Government to develop Usun Apau as tourist attraction. https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/ <br>		Sarawak Tribune. (2022). Government to develop Usun Apau as tourist attraction. https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/ <br>

WikiEdit at 14:50, 25 March 2026

2026-03-25T14:50:05Z

← Older revision		Revision as of 10:50, 25 March 2026
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	= Summary =		= Summary =

	<div style='float: right'>{{#display_map: height=190px \| width=300px \| scrollzoom=off \| zoom=5 \| layers=OpenStreetMap,OpenTopoMap\|2.916324, 114.665293~[[Usun Apau National Park]]~''Pongo ~~pygmaeus~~ pygmaeus''}}</div>		<div style='float: right'>{{#display_map: height=190px \| width=300px \| scrollzoom=off \| zoom=5 \| layers=OpenStreetMap,OpenTopoMap\|2.916324, 114.665293~[[Usun Apau National Park]]~''Pongo pygmaeus''}}</div>
	* ~~Northwest~~ Bornean orangutans (''Pongo pygmaeus pygmaeus'') are present in Usun Apau National Park.		* Bornean orangutans (''Pongo pygmaeus pygmaeus'') are present in Usun Apau National Park.
	* The population size is unknown.		* The population size is unknown.
	* The population trend is unknown.		* The population trend is unknown.






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	{\| border="1" cellpadding="5" cellspacing="0" class="Site_characteristics-table"		{\| border="1" cellpadding="5" cellspacing="0" class="Site_characteristics-table"
	\|Species		\|Species
	\|''Pongo ~~pygmaeus~~ pygmaeus''		\|''Pongo pygmaeus''
	\|-		\|-
	\|Area		\|Area
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	= Ape status =		= Ape status =

			As the site is located near the presumed distribution boundary between ''P. p. pygmaeus'' and ''P. p. morio'', the subspecies observed there cannot be determined with certainty (Ampeng et al. 2021).

	'''Table 2. Ape population estimates reported for Usun Apau National Park'''		'''Table 2. Ape population estimates reported for Usun Apau National Park'''
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	!A.P.E.S. database ID		!A.P.E.S. database ID
	\|-		\|-
	\|''Pongo ~~pygmaeus~~ pygmaeus''		\|'Pongo pygmaeus''
	\|2017-2020		\|2017-2020
	\|Absent		\|Absent
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	\|		\|
	\|-		\|-
	\|''Pongo ~~pygmaeus~~ pygmaeus''		\|'Pongo pygmaeus''
	\|2017-2020		\|2017-2020
	\|Present		\|Present
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	= Research activities =		= Research activities =

	There was an expedition in Usun Apau Plateau by an Oxford University in 1955 (Arnold 1957). The expedition explored the plateau and also conducted archaelogical excavations from old longhouses. Besides that, a study on dragonfly was also conducted in Usun Apau National Park in 2012, through collaboration between Naturalis Biodiversity Center, St Anne's Close and National Biodiversity Centre (Dow, Reels, and Ngiam 2015). They found 55 odonate species during the time period. WWF also documented Usun Apau National Park in their publication entitled "The Environmental Status of Borneo" published in 2017 (Wulffraat & Greenwood 2017).		There was an expedition in Usun Apau Plateau by an Oxford University in 1955 (Arnold 1957). The expedition explored the plateau and also conducted archaelogical excavations from old longhouses.

	= Documented behaviours =		= Documented behaviours =
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	= References =		= References =

	Ampeng, A., Liam, J., Simpson, B., Traelholt, C., Nor, S. M., Abdan-Saleman, M. S. B., ... & Md-Zain, B. M. (2021). First Bornean orangutan sighting in Usun Apau National Park, Sarawak. Biodiversity ~~Data Journal~~, 9.		Ampeng, A., Liam, J., Simpson, B., Traelholt, C., Nor, S. M., Abdan-Saleman, M. S. B., ... & Md-Zain, B. M. (2021). First Bornean orangutan sighting in Usun Apau National Park, Sarawak. Biodiversity data journal, 9, e60753. <br>
			Ang, A., Brandon-Jones, D., Ruppert, N., Lee, Z. H., Affendi, A., Stanly Anyie, Y., Boonratana, R., Cheyne, S. M., Chua, A., Hayunieta, Irawan, A., Jerusalinsky, L., Karuniawati, A., Khalid, S., Koh, J., Lee, C., Lhota, S., Lwin, N., Mittermeier, R. A., … Roos, C. (2024). Asian langurs (Presbytis) conservation action plan 2024–2034. IUCN. https://portals.iucn.org/library/node/51546 <br>
			Mathai, J., Duckworth, J. W., Meijaard, E., Fredriksson, G., Hon, J., Sebastian, A., ... & Wilting, A. (2016). Carnivore conservation planning on Borneo: identifying key carnivore landscapes, research priorities and conservation interventions. Raffles Bulletin of Zoology. <br>
			Sarawak Tribune. (2022). Government to develop Usun Apau as tourist attraction. https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/ <br>



	~~Ang, A., Brandon~~-Jones, D., Ruppert, N., Lee, Z. H., Affendi, A., Stanly Anyie, Y., Boonratana, R., Cheyne, S. M., Chua, A., Hayunieta, Irawan, A., Jerusalinsky, L., Karuniawati, A., Khalid, S., Koh, J., Lee, C., Lhota, S., Lwin, N., Mittermeier, R. A., … Roos, C. (2024). Asian langurs (Presbytis) conservation action plan 2024–2034. IUCN. https:~~//portals.iucn.org/library/node/51546~~		'''Page created by: '''Cristiar Samosir''' Date:''' 2024-11-26 13:43:00

			'''Page updated by: '''APES Atlas team''' Date:''' 2026-03-16

	~~Dow, R. A., Reels, G. T., & Ngiam, R. W. (2015). Odonata collected at Usun Apau National Park, Miri Division, Sarawak, Malaysia in April and May 2012. International Dragonfly Fund: Report, 1-17.~~



	Mathai, J., Duckworth, J. W., Meijaard, E., Fredriksson, G., Hon, J., Sebastian, A., ... & Wilting, A. (2016). Carnivore conservation planning on Borneo: identifying key carnivore landscapes, research priorities and conservation interventions. Raffles Bulletin of Zoology.



	~~Sarawak Tribune. 2022. Government to develop Usun Apau as tourist attraction. https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/~~



	~~Wulffraat, S. and Greenwood, C. (2017). The environmental status of Borneo. WWF Heart of Borneo Programme.~~



	'''Page ~~created~~ by: '''~~Cristiar Samosir~~''' Date:''' ~~2024~~-11-~~26 13:43:00~~

WikiEdit: Created page with "Asia > Malaysia > Usun Apau National Park '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=auto&_x_tr_tl=fr&_x_tr_hl=en&_x_tr_pto=wapp Français]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=auto&_x_tr_tl=pt&_x_tr_hl=en&_x_tr_pto=wapp Português]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=au..."

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New page

[[Asia]] > [[Malaysia]] > [[Usun Apau National Park]]

'''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=auto&_x_tr_tl=fr&_x_tr_hl=en&_x_tr_pto=wapp Français]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=auto&_x_tr_tl=pt&_x_tr_hl=en&_x_tr_pto=wapp Português]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=auto&_x_tr_tl=es&_x_tr_hl=en&_x_tr_pto=wapp Español]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=auto&_x_tr_tl=id&_x_tr_hl=en&_x_tr_pto=wapp Bahasa Indonesia]''' | '''[https://apesatlas-iucnapesportal-org.translate.goog/index.php/Usun_Apau_National_Park?_x_tr_sl=auto&_x_tr_tl=ms&_x_tr_hl=en&_x_tr_pto=wapp Melayu]'''

__TOC__
= Summary =

<div style='float: right'>{{#display_map: height=190px | width=300px | scrollzoom=off | zoom=5 | layers=OpenStreetMap,OpenTopoMap|2.916324, 114.665293~[[Usun Apau National Park]]~''Pongo pygmaeus pygmaeus''}}</div>
* Northwest Bornean orangutans (''Pongo pygmaeus pygmaeus'') are present in Usun Apau National Park.
* The population size is unknown.
* The population trend is unknown.

= Site characteristics =

Usun Apau National Park is described as pristine area known for its waterfalls. The government aims to develop ecotourism at Usun Apau National Park (Sarawak Tribune 2022). Usun Apau was also proposed to be included in the extension of the Heart of Borneo as part of Extended Baram Complex (Mathai et al. 2016). Other species such as ''Presbytis hosei'' and ''Presbytis rubicunda ignita'' are found in this national park (Ang et al.2024).

'''Table 1. Basic site information for Usun Apau National Park'''
{| border="1" cellpadding="5" cellspacing="0" class="Site_characteristics-table"
|Species
|''Pongo pygmaeus pygmaeus''
|-
|Area
|471.22 km²
|-
|Coordinates
|Lat: 2.916324 , Lon: 114.665293
|-
|Type of site
|Protected area (National Park)
|-
|Habitat types
|Subtropical/tropical moist montane forest, Rocky areas (inland cliffs, mountain peaks)
|-
|Type of governance
|Governance by government
|}

[[Types of sites]] [[Governance types]] [[Habitat types]]
= Ape status =

'''Table 2. Ape population estimates reported for Usun Apau National Park'''
{| border="1" cellpadding="5" cellspacing="0" class="Ape_status-table"
!Species
!Year
!Occurrence
!Encounter or vistation rate (nests/km; ind/day)
!Density estimate [ind./ km²] (95% CI)
!Abundance estimate (95% CI)
!Survey area
!Sampling method
!Analytical framework
!Source
!Comments
!A.P.E.S. database ID
|-
|''Pongo pygmaeus pygmaeus''
|2017-2020
|Absent
|
|
|
|
|Aerial (drones/plane/helicopter)
|
|Ampeng et al. 2021
|Aerial surveys fitted with FLIR-cameras were unable to confirm the presence of additional nests from daytime aerial photographs.
|
|-
|''Pongo pygmaeus pygmaeus''
|2017-2020
|Present
|
|
|
|
|Line transects
|
|Ampeng et al. 2021
|The survey using line transects found one individual Bornean orangutan and 4 orangutan nests.
|
|}

[[Sampling methods]] [[Analytical frameworks]]
= Threats =

= Conservation activities =

= Challenges =

= Enablers =

= Research activities =

There was an expedition in Usun Apau Plateau by an Oxford University in 1955 (Arnold 1957). The expedition explored the plateau and also conducted archaelogical excavations from old longhouses. Besides that, a study on dragonfly was also conducted in Usun Apau National Park in 2012, through collaboration between Naturalis Biodiversity Center, St Anne's Close and National Biodiversity Centre (Dow, Reels, and Ngiam 2015). They found 55 odonate species during the time period. WWF also documented Usun Apau National Park in their publication entitled "The Environmental Status of Borneo" published in 2017 (Wulffraat & Greenwood 2017).

= Documented behaviours =

= Exposure to climate change impacts =

= External links =

= References =

Ampeng, A., Liam, J., Simpson, B., Traelholt, C., Nor, S. M., Abdan-Saleman, M. S. B., ... & Md-Zain, B. M. (2021). First Bornean orangutan sighting in Usun Apau National Park, Sarawak. Biodiversity Data Journal, 9.

Ang, A., Brandon-Jones, D., Ruppert, N., Lee, Z. H., Affendi, A., Stanly Anyie, Y., Boonratana, R., Cheyne, S. M., Chua, A., Hayunieta, Irawan, A., Jerusalinsky, L., Karuniawati, A., Khalid, S., Koh, J., Lee, C., Lhota, S., Lwin, N., Mittermeier, R. A., … Roos, C. (2024). Asian langurs (Presbytis) conservation action plan 2024–2034. IUCN. https://portals.iucn.org/library/node/51546

Dow, R. A., Reels, G. T., & Ngiam, R. W. (2015). Odonata collected at Usun Apau National Park, Miri Division, Sarawak, Malaysia in April and May 2012. International Dragonfly Fund: Report, 1-17.

Mathai, J., Duckworth, J. W., Meijaard, E., Fredriksson, G., Hon, J., Sebastian, A., ... & Wilting, A. (2016). Carnivore conservation planning on Borneo: identifying key carnivore landscapes, research priorities and conservation interventions. Raffles Bulletin of Zoology.

Sarawak Tribune. 2022. Government to develop Usun Apau as tourist attraction. https://www.newsarawaktribune.com.my/government-to-develop-usun-apau-as-tourist-attraction/

Wulffraat, S. and Greenwood, C. (2017). The environmental status of Borneo. WWF Heart of Borneo Programme.

'''Page created by: '''Cristiar Samosir''' Date:''' 2024-11-26 13:43:00