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[[West Africa]] > [[Sierra Leone]] > [[Tonkoli Forest Reserve]]
= Summary = <!-- An overview of the site, with one sentence for each section. May include a site map -->
<div style="float: right">
{{#display_map: height=200px | width=300px | scrollzoom=off | zoom=5 | layers= OpenStreetMap, OpenTopoMap
|8.885335, -11.493043~[[Tonkoli Forest Reserve]]~Western Chimpanzee
}}
</div>
* Western chimpanzees (''Pan troglodytes verus'') are present in Tonkoli Forest Reserve.
* The population size is unknown.
* The chimpanzee population trend is decreasing.
* The site has a total size of 71 km².
* Key threats to chimpanzees are logging, hunting and loss of habitat due to agricultural expansion.
* Conservation activities are not reported.
= Site characteristics = <!-- A paragraph summary of physical and geographic aspects of the site, and a table of key information -->
The site was established as a forest reserve in 1926 ([https://www.protectedplanet.net/8515 WDPA]).
'''Table 1. Basic site information for Tonkoli Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="basic-information"
| Area <!-- Please include units: km2/ha e.g 200ha -->
|71 km²
|-
|Coordinates
|8.885335, -11.493043
|-
|Designation
|Forest Reserve
|-
|Habitat types <!-- List IUCN Habitat Classification 3.0 categories present (without number), see link below -->
|Subtropical/tropical moist lowland forest
|}
[https://www.iucnredlist.org/resources/habitat-classification-scheme IUCN habitat categories] [[Site designations]]
= Ape status = <!--An overview of ape population status (population sizes, trends, etc.), followed by a table of specific surveys and results -->
During a national survey in 2009, interviews were conducted in 24 communities in and around the Tonkoli Reserve; 8 reported the presence of chimpanzees, and 16 communities reported having no chimpanzees in the vicinity (Brncic et al. 2010). Several people reported that chimpanzees were present around their community before the war. Based on interviews, they may still be present in the southeastern part of the reserve (Brncic et al. 2010).
'''Table 2. Ape population estimates in Tonkoli Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table"
! 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 verus''
|2009
|
|
|Present
|Tonkoli Forest Reserve
|Interview survey
|Brncic et al. 2010
|
|
|}
= Threats = <!-- a text overview of threats, followed by a table of key threats -->
The main threats to chimpanzees in the site, as reported by local communities during a 2009 interview survey, include hunting, farming, logging, and civil war (1991-20020). Many people reported that chimpanzees were present before the war, but not seen now for some time. The site was used extensively by rebels during the war. Much of the forest has been damaged or lost as a consequence; chimpanzees have been largely hunted or driven out from the area. In addition, much of the forest has been cleared for agriculture (Brncic et al. 2010).
'''Table 3. Threats to apes in Tonkoli Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="threats-table"
!align="left"|Category <!-- PLEASE DO NOT CHANGE THE THREAT CATEGORIES -->
!Specific threats <!-- For specific threats, please use list of comma separated keywords from the IUCN list linked below -->
!Threat level <!-- For threat level, please use keywords: low, medium, high, present, absent, unknown-->
!Quantified severity <!-- Enter any available quantification of the threat, e.g., the proportion of the area affected by the threat, hunting sign encounter rates-->
!Description <!-- Add descriptive information -->
!Year of threat <!-- Enter specific year(s), “ongoing”, or “unknown”. If the threat is ongoing, please add the year of reference in parentheses -->
|-
|1. Residential & commercial development
|
|Unknown
|
|
|
|-
|2. Agriculture & aquaculture
|2.1 Annual & perennial non-timber crops
|High
|
|a large portion of the forest appears to have been cleared for crops such as rice and pepper (Brncic et al. 2010).
|Ongoing (2010)
|-
|3. Energy production & mining
|
|Unknown
|
|
|
|-
|4. Transportation & service corridors
|
|Unknown
|
|
|
|-
|5. Biological resource use
|5.1 Hunting & collecting terrestrial animals
|High
|
|Hunting was reported as a main threat during a 2010 interview survey in the area (Brncic et al. 2010).
|Ongoing (2010)
|-
|
|5.3 Logging & wood harvesting
|High
|
|Logging and subsequent agricultural activities have severely degraded the forest. A logging company appears to have a concession inside the reserve (Brncic et al. 2010).
|Ongoing (2010)
|-
|6. Human intrusion & disturbance
|6.2 War, civil unrest & military exercises
|High
|
|The decline in chimpanzee population was noticeable to local communities as a result of war and increased severity of related threats, such as hunting and logging (Brncic et al. 2010).
|1991-2002
|-
|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
|
|
|
|-
|}
[https://www.iucnredlist.org/resources/threat-classification-scheme IUCN Threats list]
= Conservation activities = <!-- A summary of the conservation activities, followed by a table of key activities -->
'''Table 4. Conservation activities in Tonkoli Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="conservation-actions-table"
!align="left"|Category <!-- PLEASE DO NOT CHANGE THE CATEGORIES -->
!Specific activity <!-- For specific threats, please use list from the list linked below, OR enter “Not reported” -->
!Description <!-- Add descriptive information -->
!Year of activity <!-- Add descriptive information -->
|-
|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
|11.2. Legally protect primate habitat
|The site is a forest reserve.
|1926-Ongoing (2023)
|-
|12. Species Management
|Not reported
|
|
|-
|13. Livelihood; Economic & Other Incentives
|Not reported
|
|
|-
|}
[[Conservation activities list (Junker et al. 2017)]]
= Challenges = <!-- Overview of challenges in ape conservation -->
'''Table 5. Challenges reported for Tonkoli Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="challenges-table"
!align="left"|Challenge <!-- Do not change categories -->
!Source <!-- Source for challenge mentioned -->
|-
|Not reported
|
|-
|}
= Research activities = <!-- Overview of research activities -->
===Documented behaviours=== <!-- List of any behaviours observed at the site, including citations -->
'''Table 6. Ape behaviors reported for Tonkoli Forest Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="behaviors-table"
!align="left"|Behavior
!Source
|-
|Not reported
|
|-
|}
= References =
Brncic, T.M., Amarasekaran,B. & McKenna,A. 2010. Final Report of the Sierra Leone National Chimpanzee Census Project. Tacugama Chimpanzee Sanctuary, Freetown, Sierra Leone. <br>
<br>
'''Page completed by: '''A.P.E.S. Wiki team''' Date:''' 16/11/2023 <!-- If you don't want to add your name, you can add "A.P.E.S. Wiki team" -->