Difference between revisions of "Oluwa Forest Reserve"
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+ | [[West Africa]] > [[Nigeria]] > [[Oluwa Forest Reserve]] | ||
− | + | = Summary = <!-- An overview of the site, with one sentence for each section. May include a site map --> | |
− | + | * Nigeria-Cameroon chimpanzees (''Pan troglodytes ellioti'') are present in Oluwa Forest Reserve. | |
− | = Summary = | + | * The population size is unknown. |
− | + | * The chimpanzee population trend is unknown. | |
− | * | + | * The site has a total size of 678 km². |
− | * | + | * Key threats to chimpanzees are hunting, logging, and expansion of land for agriculture. |
− | * | + | * The site is part of the Omo-Shasha-Oluwa project, implemented by the Nigerian Conservation Foundation, which aims to connect three forest reserves and manage them as a wildlife sanctuary. |
− | * | ||
− | * Key threats to | ||
− | * | ||
− | |||
− | |||
− | |||
+ | = Site characteristics = <!-- A paragraph summary of physical and geographic aspects of the site, and a table of key information --> | ||
− | + | '''Table 1. Basic site information for Oluwa Forest Reserve''' | |
− | |||
− | |||
− | |||
− | '''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 --> |
− | | | + | |678 km² |
|- | |- | ||
− | | Coordinates | + | |Coordinates |
− | | | + | |6.823, 4.674 |
|- | |- | ||
− | | Designation | + | |Designation |
− | | | + | |Forest Reserve |
|- | |- | ||
− | |Habitat types | + | |Habitat types <!-- List IUCN Habitat Classification 3.0 categories present (without number), see link below --> |
− | | | + | |Subtropical/tropical low moist forest, plantations |
|} | |} | ||
− | [ | + | [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 --> | ||
+ | In 2006, chimpanzees and signs of chimpanzees (nests and vocalizations) were observed by the Owena river in the core area of the reserve (Greengrass 2006). Similarly, in 2012 the distribution of chimpanzees was confined to the core area of the reserve (segment OA2), encompassing approximately 39.22 km², or 5.78% of the total forest reserve (Ogunjemite & Olaniyi 2012). The population trend is unknown. | ||
− | '''Table 2 | + | '''Table 2. Ape population estimates in Oluwa Forest Reserve''' |
{| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table" | {| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table" | ||
! Species | ! Species | ||
! Year | ! Year | ||
− | ! Abundance estimate (95% | + | ! Abundance estimate (95% CI) |
− | ! Density estimate ( | + | ! Density estimate [ind./ km²] (95% CI) |
! Encounter rate (nests/km) | ! Encounter rate (nests/km) | ||
! Area | ! Area | ||
Line 72: | Line 52: | ||
! A.P.E.S. database ID | ! A.P.E.S. database ID | ||
|- | |- | ||
+ | |''Pan troglodytes ellioti'' | ||
+ | |2006 | ||
| | | | ||
| | | | ||
+ | |Present | ||
+ | |Oluwa Forest Reserve | ||
+ | |Index survey (reconnaissance walk) | ||
+ | |Greengrass 2006 | ||
+ | |Reconnaissance walk. Nests and individuals were seen in the core area of the reserve.Vocalizations and nests also observed. | ||
| | | | ||
+ | |- | ||
+ | |''Pan troglodytes ellioti'' | ||
+ | |2011-2012 | ||
| | | | ||
| | | | ||
− | | | + | |Present |
− | | | + | |Oluwa Forest Reserve |
− | | | + | |Index survey (reconnaissance walk) |
− | | | + | |Ogunjemite & Olaniyi 2012 |
+ | |Reconnaissance walk. The study recorded 9.50 ± 1.55 individuals and 13 nests. Vocalizations and footprints were also documented. | ||
| | | | ||
|} | |} | ||
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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 --> | ||
− | + | '''Table 3. Threats to apes in Oluwa Forest Reserve''' | |
− | |||
− | |||
− | |||
− | '''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 | ||
+ | |2.1 Annual & perennial non-timber crops | ||
+ | |High | ||
| | | | ||
− | | | + | |Cultivation began from the outer edges of the reserve; only the core area has some natural forest left (Greengrass 2006, Ogunjemite & Olayimi 2012). |
− | | | + | |Ongoing (2012) |
− | |||
− | |||
|- | |- | ||
|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 | ||
| | | | ||
+ | |Hunting is a major threat in the area; several gunshots were heard during a survey in 2006 (Greengrass 2006, Ogunjemite & Olayimi 2012). | ||
+ | |Ongoing (2012) | ||
+ | |- | ||
| | | | ||
+ | |5.3 Logging & wood harvesting | ||
+ | |High | ||
| | | | ||
− | | | + | |Logging activity on the eastern side of the Owena River, where chimpanzees were observed (Greengrass 2006). |
− | | | + | |Ongoing (2012) |
|- | |- | ||
− | |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 | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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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 --> | ||
+ | Together with Omo and Shasha forest reserves, Oluwa is part of the Omo-Shasha-Oluwa project, implemented by the Nigerian Conservation Foundation, which aims to connect the three areas (PNI 2011). Although Omo and Shasha reserves are connected, Oluwa forest is isolated. The plan is to manage the Omo-Shasha-Oluwa areas as a wildlife sanctuary and permit human use where it is compatible with forest conservation. Other conservation activities included in the plan are the re-gazettement of forest reserve areas, community development, environmental education, research, eco-tourism, and long-term financing through REDD carbon credits (PNI 2011). Further information on the advancement of these activities has not been reported. | ||
− | + | '''Table 4. Conservation activities in Oluwa Forest Reserve''' | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | '''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 Oluwa Forest Reserve''' | |
− | + | {| 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 --> | ||
− | + | A new nesting behavior was observed in the Oluwa Forest Reserve chimpanzee population during a survey in 2011-2012 (Ogunjemite & Olaniyi 2012). The majority of nests were built on rock platforms, perhaps due to the absence of tree species that are usually used for nesting (Ogunjemite & Olaniyi 2012). | |
− | |||
− | |||
===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 Oluwa Forest Reserve''' |
{| 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 |
|- | |- | ||
− | | | + | |Making ground nests |
− | | | + | |Ogunjemite & Olaniyi 2012 |
|- | |- | ||
|} | |} | ||
+ | =External links= | ||
===Relevant datasets=== | ===Relevant datasets=== | ||
[http://apesportal.eva.mpg.de/database/archiveMap A.P.E.S Portal] | [http://apesportal.eva.mpg.de/database/archiveMap A.P.E.S Portal] | ||
− | |||
− | |||
− | |||
= References = | = References = | ||
− | + | Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme. <br> | |
+ | Ogunjemite, B.G. and Olaniyi, O.E. (2012), “The chimpanzees of Oluwa Forest | ||
+ | Reserve, southwest Nigeria”, International Journal of Development and Sustainability, Vol. 1 No. 3, pp. | ||
+ | 823-833. <br> | ||
+ | Pro-Natura International. (2011), Project Progress Report for the International Elephant Foundation January 2010 – May 2011. <br> | ||
<br> | <br> | ||
− | '''Page completed by:''' | + | '''Page completed by: '''A.P.E.S. Wiki''' Date:''' 19/11/2020 <!-- If you don't want to add your name, you can add "A.P.E.S. Wiki team" --> |
− | |||
− | |||
− |
Latest revision as of 04:51, 17 October 2022
West Africa > Nigeria > Oluwa Forest Reserve
Summary
- Nigeria-Cameroon chimpanzees (Pan troglodytes ellioti) are present in Oluwa Forest Reserve.
- The population size is unknown.
- The chimpanzee population trend is unknown.
- The site has a total size of 678 km².
- Key threats to chimpanzees are hunting, logging, and expansion of land for agriculture.
- The site is part of the Omo-Shasha-Oluwa project, implemented by the Nigerian Conservation Foundation, which aims to connect three forest reserves and manage them as a wildlife sanctuary.
Site characteristics
Table 1. Basic site information for Oluwa Forest Reserve
Area | 678 km² |
Coordinates | 6.823, 4.674 |
Designation | Forest Reserve |
Habitat types | Subtropical/tropical low moist forest, plantations |
IUCN habitat categories Site designations
Ape status
In 2006, chimpanzees and signs of chimpanzees (nests and vocalizations) were observed by the Owena river in the core area of the reserve (Greengrass 2006). Similarly, in 2012 the distribution of chimpanzees was confined to the core area of the reserve (segment OA2), encompassing approximately 39.22 km², or 5.78% of the total forest reserve (Ogunjemite & Olaniyi 2012). The population trend is unknown.
Table 2. Ape population estimates in Oluwa Forest Reserve
Species | Year | Abundance estimate (95% CI) | Density estimate [ind./ km²] (95% CI) | Encounter rate (nests/km) | Area | Method | Source | Comments | A.P.E.S. database ID |
---|---|---|---|---|---|---|---|---|---|
Pan troglodytes ellioti | 2006 | Present | Oluwa Forest Reserve | Index survey (reconnaissance walk) | Greengrass 2006 | Reconnaissance walk. Nests and individuals were seen in the core area of the reserve.Vocalizations and nests also observed. | |||
Pan troglodytes ellioti | 2011-2012 | Present | Oluwa Forest Reserve | Index survey (reconnaissance walk) | Ogunjemite & Olaniyi 2012 | Reconnaissance walk. The study recorded 9.50 ± 1.55 individuals and 13 nests. Vocalizations and footprints were also documented. |
Threats
Table 3. Threats to apes in Oluwa Forest Reserve
Category | Specific threats | Threat level | Quantified severity | Description | Year of threat |
---|---|---|---|---|---|
1. Residential & commercial development | Unknown | ||||
2. Agriculture & aquaculture | 2.1 Annual & perennial non-timber crops | High | Cultivation began from the outer edges of the reserve; only the core area has some natural forest left (Greengrass 2006, Ogunjemite & Olayimi 2012). | Ongoing (2012) | |
3. Energy production & mining | Unknown | ||||
4. Transportation & service corridors | Unknown | ||||
5. Biological resource use | 5.1 Hunting & collecting terrestrial animals | High | Hunting is a major threat in the area; several gunshots were heard during a survey in 2006 (Greengrass 2006, Ogunjemite & Olayimi 2012). | Ongoing (2012) | |
5.3 Logging & wood harvesting | High | Logging activity on the eastern side of the Owena River, where chimpanzees were observed (Greengrass 2006). | Ongoing (2012) | ||
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 | Unknown |
Conservation activities
Together with Omo and Shasha forest reserves, Oluwa is part of the Omo-Shasha-Oluwa project, implemented by the Nigerian Conservation Foundation, which aims to connect the three areas (PNI 2011). Although Omo and Shasha reserves are connected, Oluwa forest is isolated. The plan is to manage the Omo-Shasha-Oluwa areas as a wildlife sanctuary and permit human use where it is compatible with forest conservation. Other conservation activities included in the plan are the re-gazettement of forest reserve areas, community development, environmental education, research, eco-tourism, and long-term financing through REDD carbon credits (PNI 2011). Further information on the advancement of these activities has not been reported.
Table 4. Conservation activities in Oluwa Forest Reserve
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 Oluwa Forest Reserve
Challenge | Source |
---|---|
Not reported |
Research activities
A new nesting behavior was observed in the Oluwa Forest Reserve chimpanzee population during a survey in 2011-2012 (Ogunjemite & Olaniyi 2012). The majority of nests were built on rock platforms, perhaps due to the absence of tree species that are usually used for nesting (Ogunjemite & Olaniyi 2012).
Documented behaviours
Table 6. Ape behaviors reported for Oluwa Forest Reserve
Behavior | Source |
---|---|
Making ground nests | Ogunjemite & Olaniyi 2012 |
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.
Ogunjemite, B.G. and Olaniyi, O.E. (2012), “The chimpanzees of Oluwa Forest
Reserve, southwest Nigeria”, International Journal of Development and Sustainability, Vol. 1 No. 3, pp.
823-833.
Pro-Natura International. (2011), Project Progress Report for the International Elephant Foundation January 2010 – May 2011.
Page completed by: A.P.E.S. Wiki Date: 19/11/2020