Ala Forest Reserve

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West Africa > Nigeria > Ala Forest Reserve

Summary

  • Nigeria-Cameroon chimpanzees (Pan troglodytes ellioti) have been present in Ala Forest Reserve.
  • Chimpanzees are extinct or nearly extinct at the site.
  • The chimpanzee population trend is unknown.
  • The site has a total size of 199 km².
  • Key threats to chimpanzees are hunting and logging for oil palm, cocoa, and teak plantations.
  • Conservation activities not documented.

Site characteristics

Table 1. Basic site information for Ala Forest Reserve

Area 199 km²
Coordinates 7.067219, 5.421981
Designation Forest Reserve
Habitat types Arable land, plantations, subtropical/tropical heavily degraded forest, subtropical/tropical moist lowland forest

IUCN habitat categories Site designations

Ape status

Chimpanzees are extinct or nearly extinct in Ala Forest Reserve (Greengrass 2006). During a 2006 survey, no chimpanzees, nor signs of chimpanzees, were encountered (Greengrass 2006).

Table 2. Ape population estimates in Ala 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 0 Ala Forest Reserve Index survey (reconnaissance walk) Greengrass 2006

Threats

The northern half of the reserve is dominated by teak, oil palm, and cocoa plantations (Greengrass 2006). In the southern half of the reserve, even though the forest seems to be in a better condition, logging pressure is very high and large mammals are very scarce (Greengrass 2006).

Table 3. Threats to apes in Ala 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 Oil palm and cocoa plantations in the northern half of the reserve (Greengrass 2006) Ongoing (2006)
2.2 Wood & pulp plantations High Land cleared for teak plantations (Greengrass 2006) Ongoing (2006)
3. Energy production & mining Unknown
4. Transportation & service corridors 4.1 Roads & railroads High A road crosses the reserve from north to south (Greengrass 2006) Ongoing (2006)
5. Biological resource use 5.1 Hunting & collecting terrestrial animals High Hunter trails and a large number of discarded cartridges were found in the southern part of the reserve, where chimpanzees were last seen (Greengrass 2006) Ongoing (2006)
5.3 Logging & wood harvesting High Logging pressure is high in the area were chimpanzees were last seen (Greengrass 2006) Ongoing (2006)
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

IUCN Threats list

Conservation activities

Table 4. Conservation activities in Ala 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 Ala Forest Reserve

Challenge Source
Corruption Greengrass 2006
Lack of financial means Greengrass 2006
Lack of law enforcement Greengrass 2006

Research activities

No information on research activities has been documented.

Documented behaviours

Table 6. Ape behaviors reported for Ala Forest Reserve

Behavior Source
Not reported


External links

Relevant datasets

A.P.E.S Portal

References

Greengrass, E.J. (2006). A survey of chimpanzees in south-west Nigeria. Report to the NCF-WCS Biodiversity Research Programme.


Page completed by: A.P.E.S. Wiki Team Date: 19/11/2020