Yoyo River Forest Reserve - Revision history

WikiEdit at 19:13, 14 October 2026

2026-10-14T19:13:38Z

← Older revision		Revision as of 15:13, 14 October 2026
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	\|[[#R01960\|Gatti 2009]]		\|[[#R01960\|Gatti 2009]]
	\|survey effort: 22.63 km		\|survey effort: 22.63 km
	\|GHA0001, GHA0007, GHA0012, GHA0024, GHA0027, GHA0028, GHA0029		\|GHA0001, GHA0007<div class="mw-collapsible mw-collapsed" data-expandtext="+5 more" data-collapsetext="less">GHA0012, GHA0024, GHA0027, GHA0028, GHA0029</div>
	\|}		\|}

WikiEdit at 20:31, 12 October 2026

2026-10-12T20:31:55Z

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

	Yoyo River Forest Reserve is located in southwestern Ghana, north of the town Enchi. The reserve is contiguous with Tano-Anwia and Tano-Ehuro Forest Reserves. Yoyo is also connected to Boin River Forest Reserve by a narrow strip of forest (BirdLife International 2022). The reserve was created in 1932 (Gatti 2009). The area is drained by the Yoyo river and several other streams whose valleys become swampy during the wet season (BirdLife International 2022). The site has been an Important Bird Area since 2001 (BirdLife International 2022).		Yoyo River Forest Reserve is located in southwestern Ghana, north of the town Enchi. The reserve is contiguous with Tano-Anwia and Tano-Ehuro Forest Reserves. Yoyo is also connected to Boin River Forest Reserve by a narrow strip of forest ([[#R01959\|BirdLife International 2022]]). The reserve was created in 1932 ([[#R01960\|Gatti 2009]]). The area is drained by the Yoyo river and several other streams whose valleys become swampy during the wet season ([[#R01959\|BirdLife International 2022]]). The site has been an Important Bird Area since 2001 ([[#R01959\|BirdLife International 2022]]).

	'''Table 1. Basic site information for Yoyo River Forest Reserve'''		'''Table 1. Basic site information for Yoyo River Forest Reserve'''
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	= Ape status =		= Ape status =

	A rapid survey was conducted at the site in 2009 in the context of the Wildlife Wood Project in Ghana, which aims to assist logging companies in improving wildlife management in concession areas (Gatti 2009). No signs of chimpanzees were recorded.		A rapid survey was conducted at the site in 2009 in the context of the Wildlife Wood Project in Ghana, which aims to assist logging companies in improving wildlife management in concession areas ([[#R01960\|Gatti 2009]]). No signs of chimpanzees were recorded.

	'''Table 2. Ape population estimates reported for Yoyo River Forest Reserve'''		'''Table 2. Ape population estimates reported for Yoyo River Forest Reserve'''
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	\|Reconnaissance walk		\|Reconnaissance walk
	\|		\|
	\|Gatti 2009		\|[[#R01960\|Gatti 2009]]
	\|survey effort: 22.63 km		\|survey effort: 22.63 km
	\|		\|GHA0001, GHA0007, GHA0012, GHA0024, GHA0027, GHA0028, GHA0029
	\|}		\|}

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	\|5.1 Hunting & collecting terrestrial animals		\|5.1 Hunting & collecting terrestrial animals
	\|High (more than 70% of population affected)		\|High (more than 70% of population affected)
	\|High hunting pressure (Gatti 2009).		\|High hunting pressure ([[#R01960\|Gatti 2009]]).
	\|Ongoing (2009)		\|Ongoing (2009)
	\|-		\|-
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	\|5.3 Logging & wood harvesting		\|5.3 Logging & wood harvesting
	\|Present (unknown severity)		\|Present (unknown severity)
	\|The reserve was formerly under two timber concessions and the eastern and western parts were logged between 1962 and 1979 (BirdLife International 2022). Concessions within the reserve were acquired by SAX in 1993, and logging has taken place in selected compartments at least as early as 1999 (Gatti 2009).		\|The reserve was formerly under two timber concessions and the eastern and western parts were logged between 1962 and 1979 ([[#R01959\|BirdLife International 2022]]). Concessions within the reserve were acquired by SAX in 1993, and logging has taken place in selected compartments at least as early as 1999 ([[#R01960\|Gatti 2009]]).
	\|1962-1979, 1999-Ongoing (2009)		\|1962-1979, 1999-Ongoing (2009)
	\|}		\|}
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	= References =		= References =

	BirdLife International (2022) Important Bird Areas factsheet: Yoyo River Forest Reserve. Downloaded from http://www.birdlife.org on 15/03/2022.		<span id="R01959"></span>BirdLife International (2022) Important Bird Areas factsheet: Yoyo River Forest Reserve. Downloaded from http://www.birdlife.org on 15/03/2022.

	Gatti, S. (2009). Mammal surveys and capacity building for the Wildlife Wood Project - Ghana. Unpublished report to the WWP-Ghana.		<span id="R01960"></span>Gatti, S. (2009). Mammal surveys and capacity building for the Wildlife Wood Project - Ghana. Unpublished report to the WWP-Ghana.



	'''Page created by: '''APES Atlas Team''' Date:''' 2022-03-18		'''Page created by: '''APES Atlas Team''' Date:''' 2022-03-18

WikiEdit at 14:50, 25 March 2026

2026-03-25T14:50:32Z

← Older revision		Revision as of 10:50, 25 March 2026
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	* Key threats to chimpanzees are hunting and logging.		* Key threats to chimpanzees are hunting and logging.
	* Conservation activities are not documented.		* Conservation activities are not documented.





	= Site characteristics =		= Site characteristics =
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	!Description		!Description
	!Year of threat		!Year of threat
			\|-
			\|5 Biological resource use
			\|5.1 Hunting & collecting terrestrial animals
			\|High (more than 70% of population affected)
			\|High hunting pressure (Gatti 2009).
			\|Ongoing (2009)
	\|-		\|-
	\|5 Biological resource use		\|5 Biological resource use
Line 95:		Line 97:
	\|The reserve was formerly under two timber concessions and the eastern and western parts were logged between 1962 and 1979 (BirdLife International 2022). Concessions within the reserve were acquired by SAX in 1993, and logging has taken place in selected compartments at least as early as 1999 (Gatti 2009).		\|The reserve was formerly under two timber concessions and the eastern and western parts were logged between 1962 and 1979 (BirdLife International 2022). Concessions within the reserve were acquired by SAX in 1993, and logging has taken place in selected compartments at least as early as 1999 (Gatti 2009).
	\|1962-1979, 1999-Ongoing (2009)		\|1962-1979, 1999-Ongoing (2009)
	\|-
	~~\|5 Biological resource use~~
	~~\|5.1 Hunting & collecting terrestrial animals~~
	~~\|High (more than 70% of population affected)~~
	~~\|High hunting pressure (Gatti 2009).~~
	~~\|Ongoing (2009)~~
	\|}		\|}

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[[West Africa]] > [[Ghana]] > [[Yoyo River Forest Reserve]]

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__TOC__
= Summary =

<div style='float: right'>{{#display_map: height=190px | width=300px | scrollzoom=off | zoom=5 | layers=OpenStreetMap,OpenTopoMap|5.960077, -2.795357~[[Yoyo River Forest Reserve]]~''Pan troglodytes verus''}}</div>
* Western chimpanzees (''Pan troglodytes verus'') may be present in Yoyo River Forest Reserve.
* No chimpanzees were recorded in the last survey.
* The chimpanzee population trend is decreasing.
* The site has a total size of 236 km².
* Key threats to chimpanzees are hunting and logging.
* Conservation activities are not documented.

= Site characteristics =

Yoyo River Forest Reserve is located in southwestern Ghana, north of the town Enchi. The reserve is contiguous with Tano-Anwia and Tano-Ehuro Forest Reserves. Yoyo is also connected to Boin River Forest Reserve by a narrow strip of forest (BirdLife International 2022). The reserve was created in 1932 (Gatti 2009). The area is drained by the Yoyo river and several other streams whose valleys become swampy during the wet season (BirdLife International 2022). The site has been an Important Bird Area since 2001 (BirdLife International 2022).

'''Table 1. Basic site information for Yoyo River Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="Site_characteristics-table"
|Species
|''Pan troglodytes verus''
|-
|Area
|236 km²
|-
|Coordinates
|Lat: 5.960077 , Lon: -2.795357
|-
|Type of site
|Protected area (Forest Reserve)
|-
|Habitat types
|Subtropical/tropical moist lowland forest
|-
|Type of governance
|
|}

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

A rapid survey was conducted at the site in 2009 in the context of the Wildlife Wood Project in Ghana, which aims to assist logging companies in improving wildlife management in concession areas (Gatti 2009). No signs of chimpanzees were recorded.

'''Table 2. Ape population estimates reported for Yoyo River Forest Reserve'''
{| 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
|-
|''Pan troglodytes verus''
|2009
|
|0
|
|
|Yoyo River Forest Reserve
|Reconnaissance walk
|
|Gatti 2009
|survey effort: 22.63 km
|
|}

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

'''Table 3. Threats to apes reported for Yoyo River Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="Threats-table"
!Category
!Specific threats
!Threat level
!Description
!Year of threat
|-
|5 Biological resource use
|5.3 Logging & wood harvesting
|Present (unknown severity)
|The reserve was formerly under two timber concessions and the eastern and western parts were logged between 1962 and 1979 (BirdLife International 2022). Concessions within the reserve were acquired by SAX in 1993, and logging has taken place in selected compartments at least as early as 1999 (Gatti 2009).
|1962-1979, 1999-Ongoing (2009)
|-
|5 Biological resource use
|5.1 Hunting & collecting terrestrial animals
|High (more than 70% of population affected)
|High hunting pressure (Gatti 2009).
|Ongoing (2009)
|}

[[Threats]]
= Conservation activities =

= Challenges =

'''Table 5. Challenges reported for Yoyo River Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="Challenges-table"
!Challenges
!Specific challenges
!Source
!Year(s)
|-
|
|Not reported
|
|
|}

[[Challenges]]
= Enablers =

'''Table 6. Enablers reported for Yoyo River Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="enabler-table"
!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
|
|
|
|}

[[Enablers]]
= Research activities =

= Documented behaviours =

'''Table 7. Behaviours documented for Yoyo River Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="behaviours-table"
!Category
!Behavior
!Observation type
!Prevalence
!Observation dates
!Source
!Habituation
!Species
!Comment
|-
|
|Not reported
|
|
|
|
|
|
|
|}

[[Behaviours]]
= Exposure to climate change impacts =

= External links =

= References =

BirdLife International (2022) Important Bird Areas factsheet: Yoyo River Forest Reserve. Downloaded from http://www.birdlife.org on 15/03/2022.

Gatti, S. (2009). Mammal surveys and capacity building for the Wildlife Wood Project - Ghana. Unpublished report to the WWP-Ghana.

'''Page created by: '''APES Atlas Team''' Date:''' 2022-03-18