Difference between revisions of "Owo Forest Reserve"
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= Summary = | = Summary = | ||
| − | <div style="float: right">{{#display_map: height=190px | width=300px | scrollzoom=off | zoom=5 | layers= OpenStreetMap, OpenTopoMap|6.96879,5.5626~[[Owo Forest Reserve]]~Pan troglodytes ellioti}}</div> | + | <div style="float: right">{{#display_map: height=190px | width=300px | scrollzoom=off | zoom=5 | layers= OpenStreetMap, OpenTopoMap|6.96879,5.5626~[[Owo Forest Reserve]]~'Pan troglodytes ellioti''}}</div> |
* Nigeria-Cameroon chimpanzees (''Pan troglodytes ellioti'') may be present in Owo Forest Reserve. | * Nigeria-Cameroon chimpanzees (''Pan troglodytes ellioti'') may be present in Owo Forest Reserve. | ||
* The population size is unknown. | * The population size 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 | ||
| − | |Pan troglodytes ellioti | + | |'Pan troglodytes ellioti'' |
|- | |- | ||
|Area | |Area | ||
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!Species | !Species | ||
!Year | !Year | ||
| + | !Occurrence | ||
| + | !Encounter or vistation rate (nests/km; ind/day) | ||
| + | !Density estimate [ind./ km²] (95% CI) | ||
!Abundance estimate (95% CI) | !Abundance estimate (95% CI) | ||
| − | ! | + | !Survey area |
| − | ! | + | !Sampling method |
| − | ! | + | !Analytical framework |
| − | |||
!Source | !Source | ||
!Comments | !Comments | ||
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|''Pan troglodytes ellioti'' | |''Pan troglodytes ellioti'' | ||
|2006 | |2006 | ||
| + | | | ||
| + | |0 | ||
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| − | |||
|Owo Forest Reserve | |Owo Forest Reserve | ||
|Reconnaissance walk | |Reconnaissance walk | ||
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|Greengrass 2006 | |Greengrass 2006 | ||
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!Year of threat | !Year of threat | ||
|- | |- | ||
| − | | | + | |10 Geological events |
| + | | | ||
| + | |Absent | ||
| + | | | ||
| + | | | ||
| + | |- | ||
| + | |12 Other threat | ||
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| − | | | + | |Absent |
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|2 Agriculture & aquaculture | |2 Agriculture & aquaculture | ||
|2.1 Annual & perennial non-timber crops | |2.1 Annual & perennial non-timber crops | ||
| − | |High | + | |High (more than 70% of population affected) |
|Land clearing for farmland (Greengrass 2006). | |Land clearing for farmland (Greengrass 2006). | ||
|Ongoing (2006) | |Ongoing (2006) | ||
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|2 Agriculture & aquaculture | |2 Agriculture & aquaculture | ||
|2.2 Wood & pulp plantations | |2.2 Wood & pulp plantations | ||
| − | |High | + | |High (more than 70% of population affected) |
|Extensive teak and gmelina plantations (Greengrass 2006). | |Extensive teak and gmelina plantations (Greengrass 2006). | ||
|Ongoing (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) | ||
| + | |- | ||
| + | |1 Residential & commercial development | ||
| + | | | ||
| + | |Unknown | ||
| + | | | ||
| + | | | ||
|- | |- | ||
|3 Energy production & mining | |3 Energy production & mining | ||
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|8 Invasive & other problematic species, genes & diseases | |8 Invasive & other problematic species, genes & diseases | ||
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|Unknown | |Unknown | ||
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Latest revision as of 09:56, 18 March 2025
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 |
IUCN habitat categories Site designations
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 |
Threats
Table 3. Threats to apes reported for Owo Forest Reserve
| Category | Specific threats | Threat level | Description | Year of threat |
|---|---|---|---|---|
| 10 Geological events | Absent | |||
| 12 Other threat | Absent | |||
| 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) |
| 1 Residential & commercial development | Unknown | |||
| 3 Energy production & mining | Unknown | |||
| 4 Transportation & service corridors | Unknown | |||
| 5 Biological resource use | Unknown | |||
| 6 Human intrusions & disturbance | Unknown | |||
| 8 Invasive & other problematic species, genes & diseases | Unknown | |||
| 9 Pollution | Unknown | |||
| 11 Climate change & severe weather | Unknown |
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
| Behavior | Source |
|---|---|
| Not reported |
Exposure to climate change impacts
External links
Relevant datasets
References
Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme.
Page created by: A.P.E.S. Wiki team Date: NA