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[[West Africa]] > [[Côte d'Ivoire]] > [[Mabi-Yaya Nature 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
|5.670010, -3.542367~[[Réserve naturelle de Mabi-Yaya]]~chimpanzés d'Afrique de l'Ouest
}}
</div>
* Western chimpanzees (''Pan troglodytes verus'') are present in Mabi-Yaya Nature Reserve.
* Population size is unknown.
* The trend or dynamics of the chimpanzee population is unknown.
* This site has a total surface area of 612.82 km².
* The main threats to chimpanzees are poaching and deforestation.
* OIPR monitors the site.
= Site characteristics = <!-- A paragraph summary of physical and geographic aspects of the site, and a table of key information -->
The Mabi Yaya Nature Reserve (RNMY) was created from the merging of two forests classified under the management of SODEFOR. These are the former Mabi classified forest with an area of 59,614 ha and the former Yaya classified forest with an area of 23,873 ha. Administratively, the RNMY is located in the Mé Region and is straddling the departments of Alépé (through the sub-prefectures of Aboisso-Comoé, Alépé, Alosso and Danguira) and Yakassé Attobrou by the sub-prefecture of Biéby. It is limited in its northeast ridge by the Sous - prefecture of Bettié. While subject to strong pressure from loggers, poachers and cocoa farmers, initiatives have been carried out since 2016 by the Mé Regional Council and NGOs, such as Nitidae, as part of the Mé REDD+ Project in order to safeguard this national heritage that constitutes these forests.<br>
In 2019, following all these actions and with the support of a large majority of the local population, the government decided by Decree No. 2019-897 of October 30, 2019 to create the Mabi Yaya Nature Reserve with an area of 61,282.559 ha. This decision concretizes the commitment of the Ivorian government to implement its New Strategy for the Preservation, Rehabilitation and Extension of Forests. <br>
It is crossed in its northwest part by the Mabi River and extends along the Comoé River in its eastern part to the Kossan River in the southwest. There are certain large dispersers of forest tree seeds, such as the elephant (''Loxodonta africana''), the chimpanzee (''Pan troglodytes''), the monkeys ('Cercopithecus' spp and '' Colobus'' spp), hornbills (''Ceratoymna'' spp, ''Bycanistes'' spp, ''Tropicranus albocristatus'', ''Tockus semifasciatus''), large forest duikers, bush pig, etc. Among the reptiles, there are Broad-fronted Crocodiles, which are vulnerable according to the IUCN due to poaching and the destruction of ecosystems, as well as pythons and the vipers. In the class of birds, around 170 species are found in the region.
'''Table 1. Basic site information for Mabi-Yaya Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="basic-information"
| Area <!-- Please include units: km2/ha e.g 200ha -->
|612.82 km²
|-
|Coordinates
|5.670010, -3.542367
|-
|Designation
|Nature reserve
|-
|Habitat types <!-- List IUCN Habitat Classification 3.0 categories present (without number), see link below -->
|Subtropical/tropical moist lowland forest, plantations
|}
[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 -->
The 2021 national forest wildlife inventory documented 2 chimpanzee vocalizations in the reserve. Observation of chimpanzees on 29/06/2023 by camera trap set by OIPR and the NGO NITIDAE. A total of 4 individuals (an adult female, a juvenile, an adolescent male and an adult male) were observed (Soiret pers. comm. 2023).
'''Table 2. Ape population estimates in Mabi-Yaya Nature 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''
|2020
|
|
|0.005
|Entire reserve, 612.82 km2
|Index survey (reconnaissance walk)
|OIPR 2020
|Patrouille ordinaire des agents forestiers de l'OIPR
|
|}
= Threats = <!-- a text overview of threats, followed by a table of key threats -->
The small chimpanzee population is threatened by deforestation due to the clearing and cultivation that took place when the reserve was created. There is also poaching and the risk of zoonosis due to contact between wildlife and humans.
'''Table 3. Threats to apes in Mabi-Yaya Nature 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
|Medium
|
|These plantations existed in the former classified forests. Most of them are cocoa plantations.
|2018
|-
|3. Energy production & mining
|
|Unknown
|
|
|
|-
|4. Transportation & service corridors
|
|Unknown
|
|
|
|-
|5. Biological resource use
|5.1 Hunting & collecting terrestrial animals
|Medium
|
|Poaching with 12-gauge shotguns, snare traps.
|2018
|-
|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
|
|
|
|-
|}
[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 -->
OIPR is responsible for monitoring the site. The site's ecological monitoring protocols and the monitoring operation plan have been drafted and will be validated before the end of 2022. The NGO NITIDAE, with funding from the World Bank, will be responsible for raising awareness. The site management plan is currently being drafted.
'''Table 4. Conservation activities in Mabi-Yaya Nature 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
|2.9. Regularly remove traps and snares around agricultural fields
|Regular patrols by OIPR officers collect shell casings and destroy poachers' traps, shelters and camps.
|2019
|-
|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
|10.1. Educate local communities about primates and sustainable use
|OIPR and the NGO NITIDAE are responsible for raising awareness of biological conservation in the villages along the river.
|2019
|-
|11. Habitat Protection
|11.2. Legally protect primate habitat
|The site is a nature reserve.
|Ongoing (2023)
|-
|12. Species Management
|Not reported
|
|
|-
|13. Livelihood; Economic & Other Incentives
|Not reported
|
|
|-
|}
[[Conservation activities list (Junker et al. 2017)]]
= Challenges to conservation = <!-- Overview of challenges in ape conservation -->
'''Table 5. Challenges reported for Mabi-Yaya Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="challenges-table"
!align="left"|Challenge <!-- Do not change categories -->
!Source <!-- Source for challenge mentioned -->
|-
|Lack of capacity
|OIPR 2021
|-
|}
= Research activities = <!-- Overview of research activities -->
===Documented behaviours=== <!-- List of any behaviours observed at the site, including citations -->
'''Table 6. Ape behaviors reported for Mabi-Yaya Nature Reserve'''
{| border="1" cellpadding="5" cellspacing="0" class="behaviors-table"
!align="left"|Behavior
!Source
|-
|Not reported
|
|-
|}
= References =
OIPR. 2021. Guide méthodologique de suivi-écologique de la Réserve naturelle de Mabi Yaya<br>
<br>
'''Page completed by: '''Serge Soiret & Colonel Azani Dede''' Date:''' 15/09/2023 <!-- If you don't want to add your name, you can add "A.P.E.S. Wiki team" -->