UFA 09-024

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Summary

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Leaflet

• Central chimpanzees (Pan troglodytes troglodytes) & western lowland gorillas (Gorilla gorilla gorilla) are present in UFA 09-02.
• The population size is unknown.
• The population trend is unknown.

Site characteristics

Table 1. Basic site information for UFA 09-024

Species	'Pan troglodytes troglodytes, Gorilla gorilla gorilla
Area	747.62 km²
Coordinates	Lat: 2.2498 , Lon: 10.4144
Type of site	Logging concession
Habitat types	Subtropical/tropical dry forest, Subtropical/tropical moist lowland forest, Subtropical/tropical heavily degraded former forest
Type of governance	Private governance

IUCN habitat categories Site designations

Ape status

Table 2. Ape population estimates reported for UFA 09-024

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 troglodytes	2014		1.64	0.34 (0.22-0.54)	257 (163-408)		Line transects	Distance sampling	Beukou Choumbou et al. (2021)
Pan troglodytes troglodytes	2020		0.116	0.038 (0.018-0.082)	28 (13-61)		Line transects	Distance sampling	Beukou Choumbou et al. (2021)
Gorilla gorilla gorilla	2014		1.64	0.01 (0.003-0.04)	9		Line transects	Distance sampling	Beukou Choumbou et al. (2021)
Gorilla gorilla gorilla	2020		0.116				Line transects	Distance sampling	Beukou Choumbou et al. (2021)	Density and abundance of gorillas could not be estimated due to insuffisence of gorilla nests
Pan troglodytes troglodytes & Gorilla gorilla gorilla	2014		0.52 (0.34-0.78)		389 (257-587)		Line transects	Distance sampling
Pan troglodytes troglodytes & Gorilla gorilla gorilla	2020		0.064 (0.03-1.39)		49 (23-104)		Line transects	Distance sampling

Threats

Table 3. Threats to apes reported for UFA 09-024

Category	Specific threats	Threat level	Description	Year of threat
5 Biological resource use	5.3.2 Commercial logging	High (more than 70% of population affected)		2014-Ongoing (2020)
5 Biological resource use	5.1 Hunting & collecting terrestrial animals	Medium (30-70% of population affected)		2014-Ongoing (2020)
11 Climate change & severe weather	11.1 Habitat shifting & alteration	Medium (30-70% of population affected)		2014-Ongoing (2020)
1 Residential & commercial development	1.2 Commercial & industrial areas	Present (unknown severity)		2014-Ongoing (2020)

IUCN Threats list

Challenges

Table 5. Challenges reported for UFA 09-024

Challenges	Specific challenges	Source	Year(s)
4 Institutional support	4.1 Lack of law enforcement	Beukou Choumbou et al. 2021	2014-2020

Documented behaviours

Table 7. Behaviours documented for UFA 09-024

Behavior	Source
Not reported

References

Beukou Choumbou, G. B., Nzooch Dongmo, Z. L., Sombambo, M., Njal Njock, S., Mbiapa Tchoumi, T., Ekane, H., Mounga Abana, A., Nzitouo, U., Sambou Mambala, P., & N'Goran, K. P. (2021). Dynamique de la population des grands et moyens mammifères dans le PN de Campo Maan et sa zone périphérique.WWF Report

Page created by: Tene Sop Date: 2024-11-30 14:23:00