Summary

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Western chimpanzees (Pan troglodytes verus) are present in Catio.
It is estimated that three communities of 20-30 individuals occur in the site.
The chimpanzee population trend is unknown.
The area of the site is unknown.
Key threats to chimpanzees are logging, agricultural activities and fires.
Conservation activities are not implemented.

Site characteristics

The site is located in southwestern Guinea-Bissau. It consists of the forest surrounding the town of Catio.

Table 1. Basic site information for Catio

Species	Pan troglodytes verus
Area
Coordinates	Lat: 11.269725 , Lon: -15.255653
Type of site	Non-protected area
Habitat types	Subtropical/tropical moist lowland forest, Agricultural land, Subtropical/tropical heavily degraded former forest
Type of governance

Types of sites Governance types Habitat types

Ape status

Between 2003 and 2018 chimpanzees have been observed in the site; it is estimated that three groups of 20-30 individuals occur in the area (Quecuta pers. comm. 2023).

Table 2. Ape population estimates reported for Catio

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 verus	2018				60-90	Catio	Opportunistic observation		Quecuta, Q. personal observation

Sampling methods Analytical frameworks

Threats

Table 3. Threats to apes reported for Catio

Category	Specific threats	Threat level	Description	Year of threat
2 Agriculture & aquaculture	2.1 Annual & perennial non-timber crops	High (more than 70% of population affected)	Cashew and fruit plantations (Quecuta pers. comm. 2023).	Ongoing (2023)
5 Biological resource use	5.1 Hunting & collecting terrestrial animals	Present (unknown severity)	Between 2013 and 2023 three baby chimpanzees were captured for the pet trade (Quecuta pers. comm. 2023).	2013-Ongoing (2023)
5 Biological resource use	5.3 Logging & wood harvesting	High (more than 70% of population affected)	Wood harvesting and logging to clear land for agriculture (Quecuta pers. comm. 2023).	Ongoing (2023)
7 Natural system modifications	7.1 Fire & fire suppression	High (more than 70% of population affected)	Fires due to agricultural activities (Quecuta pers. comm. 2023).	Ongoing (2023)