Ifon Forest Reserve

West Africa > Nigeria > Ifon Forest Reserve

Summary

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• Nigeria-Cameroon chimpanzees (Pan troglodytes ellioti) are present in Ifon Forest Reserve.
• The population size is unknown.
• The chimpanzee population trend is unknown.
• The site has a total size of 282 km².
• Key threats to chimpanzees are logging and hunting.
• Conservation activities are not documented.

Site characteristics

Ifon is found in the state of Ondo, Nigeria. The vegetation of Ifon is composed mainly of savanna-woodland but riverine forest and high forest also occur here. Four rivers run through it, the Osse, the Omo, the Owesse and the Okowa Rivers (Greengrass 2006).

Table 1. Basic site information for Ifon Forest Reserve

Area	282 km²
Coordinates	7.10367,5.79839
Designation	Forest Reserve
Habitat types	Arable land, savanna, subtropical/tropical heavily degraded forest, subtropical/tropical moist lowland forest

IUCN habitat categories Site designations

Ape status

Chimpanzees may still be present in the site. During a 2005 visit to the site, a hunter reported the presence of chimpanzees (Greengrass 2006). In 2006, feeding remains were found in the reserve (Greengrass 2006). An up to date survey is needed to confirm chimpanzee occurrence.

Table 2. Ape population estimates in Ifon 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				Present	Ifon	Index survey (reconnaissance walk)	Greengrass 2006	Feeding remains found.

Threats

The site is under high pressure from hunting, logging and encroachment/land clearing for farmland around its boundary (Greengrass 2006).

Table 3. Threats to apes in Ifon 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		Conversion of forest for farmland (Greengrass 2006).	Ongoing (2006)
3. Energy production & mining		Unknown
4. Transportation & service corridors		Unknown
5. Biological resource use	5.1 Hunting & collecting terrestrial animals	High		Illegal huntings (Greengrass 2006).	Ongoing (2006)
	5.3 Logging & wood harvesting	High		High logging pressure documented during a 2006 survey. Areas of high and riverine forest are subject to illegal logging (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		Absent

IUCN Threats list

Conservation activities

INSERT PARAGRAPH(S)

Table 4. Conservation activities in Ifon 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 Ifon Forest Reserve

Challenge	Source
Lack of law enforcement	Greengrass 2006
Lack of funding	Greengrass 2006

Research activities

Documented behaviours

Table 6. Ape behaviors reported for Ifon Forest Reserve

Behavior	Source
Not reported

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: 03/03/2023