Summary

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Central chimpanzees (Pan troglodytes troglodytes) & western lowland gorillas (Gorilla gorilla gorilla) are present in Tala-Tala Forest Management Unit.
It has been estimated that 895 chimpanzees and 4,678 gorillas inhabit the site.
The population trends are unknown.

Site characteristics

Table 1. Basic site information for Tala-Tala Forest Management Unit

Species	'Pan troglodytes troglodytes, Gorilla gorilla gorilla
Area	6,167 km²
Coordinates	Lat: 1.8182 , Lon: 15.178
Type of site	Logging concession
Habitat types	Subtropical/tropical dry forest, Subtropical/tropical swamp forest, Wetlands (lakes, rivers, streams, bogs, marshes)
Type of governance	Private governance

IUCN habitat categories Site designations

Ape status

Table 2. Ape population estimates reported for Tala-Tala Forest Management Unit

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
Gorilla gorilla gorilla	2016-2018		1.18	0.76 (0.52-1.11)	4,678 (3,202-6,835)	Tala-Tala Forest Management Unit	Line transects	Distance sampling	Ngoran et al. (2019)	No nest decay study was conducted. The authors used nest decay rate from neighboring sites, leading to different numbers. The estimate given here are the conservative estimate
Pan troglodytes troglodytes	2016-2018		0.48	0.15 (0.10-0.20)	895 (638-1,256)	Tala-Tala Forest Management Unit	Line transects	Distance sampling	Ngoran et al. (2019)	No nest decay study was conducted. The authors used nest decay rate from neighboring sites, leading to different numbers. The estimate given here are the conservative estimate

Threats

Table 3. Threats to apes reported for Tala-Tala Forest Management Unit

Category	Specific threats	Threat level	Description	Year of threat
5 Biological resource use	5.1 Hunting & collecting terrestrial animals	High (more than 70% of population affected)	Although hunting signs are relatively high in the Tala-Tala forest, with an encounter rate of 0.55 signs/km, they account for only 15% of all human activity signs, which have an overall encounter rate of 3.62 signs/km (Ngoran et al. 2019).	2015-Ongoing (2019)
5 Biological resource use	5.3.2 Commercial logging	Medium (30-70% of population affected)	Apart from specific hunting and logging activities, machete cuts and trails are frequently observed. The high abundance of machete cuts and trails highlights the significant presence of human activities throughout the Tala-Tala forest. Indeed, in carrying out various activities within the UFA Tala-Tala, trails are used to access desired locations. During movements along trails or off-trail, marks are often left on trees (Ngoran et al. 2019).	Ongoing (2019)
11 Climate change & severe weather	11.1 Habitat shifting & alteration	Medium (30-70% of population affected)
2 Agriculture & aquaculture	2.1.1 Shifting agriculture	Present (unknown severity)	This area plays a vital role in conserving elephants, great apes, and numerous other wildlife species. Despite significant human pressures such as hunting, agriculture, and logging, the Tala-Tala forest remains crucial for maintaining ecological connectivity within the TRIDOM landscape (Ngoran et al. 2019).	Ongoing (2019)

IUCN Threats list

Conservation activities

Challenges

Table 5. Challenges reported for Tala-Tala Forest Management Unit

Challenges	Specific challenges	Source	Year(s)
	Unknown

Enablers

Research activities

Documented behaviours

Table 7. Behaviours documented for Tala-Tala Forest Management Unit

Behavior	Source
Not reported

Exposure to climate change impacts

External links

Relevant datasets

References

N'Goran, K. P., Allam Mbalampouom, A., Le-Duc Yeno, S., Mahoungou, S., & Akenji Nji, L. (2019). Rapport de l’inventaire des grands et moyens mammifères dans l’UFA Tala-Tala.

Page created by: Tene Sop Date: 2024-11-27 10:33:00

Tala-Tala Forest Management Unit

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