Owo Forest Reserve: Difference between revisions
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* Key threats to chimpanzees are clearing land for agriculture and plantations. | * Key threats to chimpanzees are clearing land for agriculture and plantations. | ||
* Conservation activities are not documented. | * Conservation activities are not documented. | ||
= Site characteristics = | = Site characteristics = | ||
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= Ape status = | = Ape status = | ||
The site was superficially surveyed in 2006. Two nests were observed in Owo Forest Reserve in 1997, but it remains unconfirmed whether or not chimpanzees still survive here- a more extensive survey is needed to confirm chimpanzee occurrence (Greengrass 2006). | The site was superficially surveyed in 2006. Two nests were observed in Owo Forest Reserve in 1997, but it remains unconfirmed whether or not chimpanzees still survive here- a more extensive survey is needed to confirm chimpanzee occurrence ([[#R01484|Greengrass 2006]]). | ||
'''Table 2. Ape population estimates reported for Owo Forest Reserve''' | '''Table 2. Ape population estimates reported for Owo Forest Reserve''' | ||
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|Reconnaissance walk | |Reconnaissance walk | ||
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|Greengrass 2006 | |[[#R01484|Greengrass 2006]] | ||
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|2.1 Annual & perennial non-timber crops | |2.1 Annual & perennial non-timber crops | ||
|High (more than 70% of population affected) | |High (more than 70% of population affected) | ||
|Land clearing for farmland (Greengrass 2006). | |Land clearing for farmland ([[#R01484|Greengrass 2006]]). | ||
|Ongoing (2006) | |Ongoing (2006) | ||
|- | |- | ||
| Line 99: | Line 95: | ||
|2.2 Wood & pulp plantations | |2.2 Wood & pulp plantations | ||
|High (more than 70% of population affected) | |High (more than 70% of population affected) | ||
|Extensive teak and gmelina plantations (Greengrass 2006). | |Extensive teak and gmelina plantations ([[#R01484|Greengrass 2006]]). | ||
|Ongoing (2006) | |Ongoing (2006) | ||
|- | |- | ||
| Line 105: | Line 101: | ||
|7.1 Fire & fire suppression | |7.1 Fire & fire suppression | ||
|Present (unknown severity) | |Present (unknown severity) | ||
|Clearing land with fires, leading to high fragmentation of the forest (Greengrass 2006). | |Clearing land with fires, leading to high fragmentation of the forest ([[#R01484|Greengrass 2006]]). | ||
|Ongoing (2006) | |Ongoing (2006) | ||
|} | |} | ||
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= References = | = References = | ||
Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme. | <span id="R01484"></span>Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme. [http://cameroun-foret.com/system/files/18_13_132.pdf link] | ||
'''Page created by: '''APES Atlas Team''' Date:''' 2023-03-17 | '''Page created by: '''APES Atlas Team''' Date:''' 2023-03-17 | ||
Latest revision as of 16:30, 12 October 2026
West Africa > Nigeria > Owo Forest Reserve
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Summary
- Nigeria-Cameroon chimpanzees (Pan troglodytes ellioti) may be present in Owo Forest Reserve.
- The population size is unknown.
- The population trend is decreasing.
- The site has a total size of 242 km².
- Key threats to chimpanzees are clearing land for agriculture and plantations.
- Conservation activities are not documented.
Site characteristics
The reserve is located in the state of Ondo, Nigeria.
Table 1. Basic site information for Owo Forest Reserve
| Species | Pan troglodytes ellioti |
| Area | 242 km² |
| Coordinates | Lat: 6.96879 , Lon: 5.5626 |
| Type of site | Protected area (Forest Reserve) |
| Habitat types | Agricultural land, Subtropical/tropical heavily degraded former forest |
| Type of governance |
Types of sites Governance types Habitat types
Ape status
The site was superficially surveyed in 2006. Two nests were observed in Owo Forest Reserve in 1997, but it remains unconfirmed whether or not chimpanzees still survive here- a more extensive survey is needed to confirm chimpanzee occurrence (Greengrass 2006).
Table 2. Ape population estimates reported for Owo Forest Reserve
| 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 ellioti | 2006 | 0 | Owo Forest Reserve | Reconnaissance walk | Greengrass 2006 |
Sampling methods Analytical frameworks
Threats
Table 3. Threats to apes reported for Owo Forest Reserve
| Category | Specific threats | Threat level | Description | Year of threat |
|---|---|---|---|---|
| 2 Agriculture & aquaculture | 2.1 Annual & perennial non-timber crops | High (more than 70% of population affected) | Land clearing for farmland (Greengrass 2006). | Ongoing (2006) |
| 2 Agriculture & aquaculture | 2.2 Wood & pulp plantations | High (more than 70% of population affected) | Extensive teak and gmelina plantations (Greengrass 2006). | Ongoing (2006) |
| 7 Natural system modifications | 7.1 Fire & fire suppression | Present (unknown severity) | Clearing land with fires, leading to high fragmentation of the forest (Greengrass 2006). | Ongoing (2006) |
Conservation activities
Challenges
Table 5. Challenges reported for Owo Forest Reserve
| Challenges | Specific challenges | Source | Year(s) |
|---|---|---|---|
| Not reported |
Enablers
Table 6. Enablers reported for Owo Forest Reserve
| 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 Owo Forest Reserve
| Category | Behavior | Observation type | Prevalence | Observation dates | Source | Habituation | Species | Comment |
|---|---|---|---|---|---|---|---|---|
| Not reported |
Exposure to climate change impacts
External links
References
Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme. link
Page created by: APES Atlas Team Date: 2023-03-17