Difference between revisions of "Lake Barombi Mbo Forest Reserve"
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+ | [[Central Africa]] > [[Cameroon]] > [[Lake Barombi Mbo Forest Reserve]] | ||
− | + | = Summary = <!-- An overview of the site, with one sentence for each section. May include a site map --> | |
− | + | <div style="float: right"> | |
− | = Summary = | + | {{#display_map: height=200px | width=300px | scrollzoom=off | zoom=5 | layers= OpenStreetMap, OpenTopoMap |
− | + | |4.669490, 9.382303~[[Lake Barombi Mbo Forest Reserve]]~Nigeria-Cameroon Chimpanzee | |
− | * | + | }} |
− | * | + | </div> |
− | * | + | * Nigeria-Cameroon Chimpanzee (''Pan troglodytes ellioti'') are present in Lake Barombi Mbo Forest Reserve. |
− | * | + | * The population size is unknown. |
− | * Key threats to | + | * The chimpanzee population trend is unknown. |
− | * | + | * The site has a total size of 8.5 km². |
+ | * Key threats to chimpanzees are logging, hunting, encroachment due to agricultural expansion, and uncontrolled harvesting of terrestrial plants. | ||
+ | * Conservation activities are not documented. | ||
+ | * The site is designated as a Ramsar site and features Lake Barombi, well-known for its high density of endemic species. | ||
+ | = Site characteristics = <!-- A paragraph summary of physical and geographic aspects of the site, and a table of key information --> | ||
− | + | The Lake Barombi Forest Reserve is located in eastern Cameroon and covers an area of over 850 ha. The site is named after an oval lake 2.5 km in diameter and 110 m deep, lying in a crater with a slope of 150 m at its highest point, and surrounded by tropical forest (Eno Nku 2004). The lake is famous among biologists for the occurrence of 12 endemic fish species, making it one of the places with the highest densities of endemic species per area in the world (Ramsar 2006). The site is also important due to the presence of freshwater sponges, one of which (''Corvospongilla thysi'') is also endemic. The lake is an important sacred site to the Barombi Mbo People and also used for fishing, transport, and farming of the surrounding land (Ramsar 2006). It is also a source of clean water for the metropolis of Kumba and its surrounding (Ramsar 2006). The site was designated as a [https://rsis.ramsar.org/fr/ris/1643 Ramsar] site in 2006. | |
− | + | '''Table 1. Basic site information for Lake Barombi Mbo Forest Reserve''' | |
− | |||
− | |||
− | |||
− | |||
− | '''Table 1 | ||
{| border="1" cellpadding="5" cellspacing="0" class="basic-information" | {| border="1" cellpadding="5" cellspacing="0" class="basic-information" | ||
− | | Area | + | | Area <!-- Please include units: km2/ha e.g 200ha --> |
− | | | + | |8.5 km² |
|- | |- | ||
− | | Coordinates | + | |Coordinates |
− | | | + | |4.669490 N, 9.382303 E |
|- | |- | ||
− | | Designation | + | |Designation |
− | | | + | |Forest Reserve |
|- | |- | ||
− | |Habitat types | + | |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 --> | ||
− | + | Vocalisation documented during a recce survey (Eno Nku 2004). | |
− | + | '''Table 2. Ape population estimates in Lake Barombi Mbo Forest Reserve''' | |
− | |||
− | '''Table 2 | ||
{| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table" | {| border="1" cellpadding="5" cellspacing="0" class="population-estimate-table" | ||
! Species | ! Species | ||
! Year | ! Year | ||
− | ! Abundance estimate (95% | + | ! Abundance estimate (95% CI) |
− | ! Density estimate ( | + | ! Density estimate [ind./ km²] (95% CI) |
! Encounter rate (nests/km) | ! Encounter rate (nests/km) | ||
! Area | ! Area | ||
Line 72: | Line 60: | ||
! A.P.E.S. database ID | ! A.P.E.S. database ID | ||
|- | |- | ||
+ | |''Pan troglodytes ellioti'' | ||
+ | |2004 | ||
| | | | ||
| | | | ||
− | | | + | |Present |
− | | | + | |Lake Barombi Mbo Forest Reserve |
− | | | + | |Index survey (reconnaissance walk) |
− | | | + | |Eno Nku (2004) |
− | | | + | |survey effort 4.5 km |
− | |||
− | |||
| | | | ||
|} | |} | ||
Line 86: | Line 74: | ||
= Threats = <!-- a text overview of threats, followed by a table of key threats --> | = Threats = <!-- a text overview of threats, followed by a table of key threats --> | ||
+ | The competition for farmland in the area that began in 1989 led to the extensive conversion of forest into farmland (Eno Nku 2004). A stripe of forest still exists along the lakeshore to shield the farms, but behind is extended plantations. Other threats include timber extraction, hunting, farming, fuel wood collection, overfishing, use of pesticides, and uncontrolled harvesting of NTFPs (Eno Nku 2004). | ||
− | + | '''Table 3. Threats to apes in Lake Barombi Mbo Forest Reserve''' | |
− | |||
− | |||
− | '''Table 3 | ||
{| border="1" cellpadding="5" cellspacing="0" class="threats-table" | {| border="1" cellpadding="5" cellspacing="0" class="threats-table" | ||
− | !align="left"|Category | + | !align="left"|Category <!-- PLEASE DO NOT CHANGE THE THREAT CATEGORIES --> |
− | !Specific threats | + | !Specific threats <!-- For specific threats, please use list of comma separated keywords from the IUCN list linked below --> |
− | !Threat level | + | !Threat level <!-- For threat level, please use keywords: low, medium, high, present, absent, unknown--> |
− | !Quantified severity <!-- e.g., encounter | + | !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 | + | !Description <!-- Add descriptive information --> |
− | !Year of threat | + | !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 | |1. Residential & commercial development | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
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|- | |- | ||
|2. Agriculture & aquaculture | |2. Agriculture & aquaculture | ||
+ | |2.1 Annual & perennial non-timber crops | ||
+ | |High | ||
| | | | ||
− | | | + | |Habitat encroachment due to agricultural expansion (Eno Nku 2004). |
− | | | + | |Ongoing (2004) |
− | |||
− | |||
|- | |- | ||
|3. Energy production & mining | |3. Energy production & mining | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
Line 122: | Line 108: | ||
|4. Transportation & service corridors | |4. Transportation & service corridors | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
Line 128: | Line 114: | ||
|- | |- | ||
|5. Biological resource use | |5. Biological resource use | ||
+ | |5.1 Hunting & collecting terrestrial animals | ||
+ | |High | ||
| | | | ||
+ | |Unsustainable hunting (Eno Nku 2004). | ||
+ | |Ongoing (2004) | ||
+ | |- | ||
| | | | ||
+ | |5.2 Gathering terrestrial plants | ||
+ | |High | ||
| | | | ||
+ | |Uncontrolled harvesting of NTFPs (Eno Nku 2004). | ||
+ | |Ongoing (2004) | ||
+ | |- | ||
| | | | ||
+ | |5.3 Logging & wood harvesting | ||
+ | |High | ||
| | | | ||
+ | |Timber extraction and fuelwood collection (Eno Nku 2004). | ||
+ | |Ongoing (2004) | ||
|- | |- | ||
− | |6. Human | + | |6. Human intrusion & disturbance |
− | |||
| | | | ||
+ | |Unknown | ||
| | | | ||
| | | | ||
Line 143: | Line 143: | ||
|7. Natural system modifications | |7. Natural system modifications | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
Line 150: | Line 150: | ||
|8. Invasive & other problematic species, genes, diseases | |8. Invasive & other problematic species, genes, diseases | ||
| | | | ||
− | | | + | |Unknown |
| | | | ||
| | | | ||
Line 156: | Line 156: | ||
|- | |- | ||
|9. Pollution | |9. Pollution | ||
+ | |9.3 Agricultural & forestry effluents | ||
+ | |Present, but threat severity unknown | ||
| | | | ||
− | | | + | |Pesticide spraying of cocoa-trees (Ramsar 2006). |
− | | | + | |Ongoing (2006) |
− | |||
− | |||
|- | |- | ||
|10. Geological Events | |10. Geological Events | ||
| | | | ||
− | | | + | |Absent |
| | | | ||
| | | | ||
| | | | ||
|- | |- | ||
− | |11. Climate change & severe weather | + | | 11. Climate change & severe weather |
− | |||
| | | | ||
+ | |Unknown | ||
| | | | ||
| | | | ||
Line 178: | Line 178: | ||
|12. Other options | |12. Other options | ||
| | | | ||
− | | | + | |Absent |
| | | | ||
| | | | ||
Line 186: | Line 186: | ||
[https://www.iucnredlist.org/resources/threat-classification-scheme IUCN Threats list] | [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 Lake Barombi Mbo Forest Reserve''' | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | '''Table 4 | ||
{| border="1" cellpadding="5" cellspacing="0" class="conservation-actions-table" | {| border="1" cellpadding="5" cellspacing="0" class="conservation-actions-table" | ||
− | !align="left"|Category | + | !align="left"|Category <!-- PLEASE DO NOT CHANGE THE CATEGORIES --> |
− | !Specific activity | + | !Specific activity <!-- For specific threats, please use list from the list linked below, OR enter “Not reported” --> |
− | !Description | + | !Description <!-- Add descriptive information --> |
− | !Year of activity | + | !Year of activity <!-- Add descriptive information --> |
|- | |- | ||
|1. Residential & commercial development | |1. Residential & commercial development | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|2. Agriculture & aquaculture | |2. Agriculture & aquaculture | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|3. Energy production & mining | |3. Energy production & mining | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|4. Transportation & service corridors | |4. Transportation & service corridors | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|5. Biological resource use | |5. Biological resource use | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
− | |6. Human | + | |6. Human intrusion & disturbance |
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|7. Natural system modifications | |7. Natural system modifications | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|8. Invasive & other problematic species, genes, diseases | |8. Invasive & other problematic species, genes, diseases | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|9. Pollution | |9. Pollution | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|10. Education & Awareness | |10. Education & Awareness | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|11. Habitat Protection | |11. Habitat Protection | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|12. Species Management | |12. Species Management | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
|- | |- | ||
|13. Livelihood; Economic & Other Incentives | |13. Livelihood; Economic & Other Incentives | ||
− | | | + | |Not reported |
| | | | ||
| | | | ||
Line 270: | Line 263: | ||
[[Conservation activities list (Junker et al. 2017)]] | [[Conservation activities list (Junker et al. 2017)]] | ||
+ | = Challenges = <!-- Overview of challenges in ape conservation --> | ||
− | + | '''Table 5. Challenges reported for Lake Barombi Mbo Forest Reserve''' | |
− | + | {| border="1" cellpadding="5" cellspacing="0" class="challenges-table" | |
− | + | !align="left"|Challenge <!-- Do not change categories --> | |
− | + | !Source <!-- Source for challenge mentioned --> | |
− | |||
− | |||
− | |||
− | '''Table 5 | ||
− | {| border="1" cellpadding="5" cellspacing="0" class=" | ||
− | !align="left"| | ||
− | !Source | ||
|- | |- | ||
− | | | + | |Not reported |
| | | | ||
|- | |- | ||
|} | |} | ||
− | |||
− | |||
= Research activities = <!-- Overview of research activities --> | = Research activities = <!-- Overview of research activities --> | ||
− | |||
− | |||
− | |||
− | |||
===Documented behaviours=== <!-- List of any behaviours observed at the site, including citations --> | ===Documented behaviours=== <!-- List of any behaviours observed at the site, including citations --> | ||
− | '''Table 6 | + | '''Table 6. Ape behaviors reported for Lake Barombi Mbo Forest Reserve''' |
{| border="1" cellpadding="5" cellspacing="0" class="behaviors-table" | {| border="1" cellpadding="5" cellspacing="0" class="behaviors-table" | ||
− | !align="left"|Behavior | + | !align="left"|Behavior |
− | !Source | + | !Source |
|- | |- | ||
− | | | + | |Not reported |
| | | | ||
|- | |- | ||
|} | |} | ||
− | + | =External links= | |
− | + | [https://portals.iucn.org/library/sites/library/files/documents/2011-123-En.pdf IUCN Regional Action Plan for the Conservation of the Nigeria-Cameroon Chimpanzee (Pan troglodytes ellioti)] | |
− | [ | ||
− | |||
− | |||
= References = | = References = | ||
− | + | Eno Nku, M. (2004). Large mammal reconnaissance surveys of Lake Barombi Mbo and Southern Banduku Forests Reserves, SW Province. Report to Wildlife Conservation Society & MINEF. <br> | |
+ | Ramsar (2006). Barombi Mbo Crater Lake. Online: https://rsis.ramsar.org/fr/ris/1643 <br> | ||
<br> | <br> | ||
− | '''Page completed by:''' | + | '''Page completed by: '''A.P.E.S. Wiki team''' Date:''' 28/02/2022 <!-- If you don't want to add your name, you can add "A.P.E.S. Wiki team" --> |
− | |||
− | |||
− |
Latest revision as of 04:52, 28 February 2022
Central Africa > Cameroon > Lake Barombi Mbo Forest Reserve
Summary
- Nigeria-Cameroon Chimpanzee (Pan troglodytes ellioti) are present in Lake Barombi Mbo Forest Reserve.
- The population size is unknown.
- The chimpanzee population trend is unknown.
- The site has a total size of 8.5 km².
- Key threats to chimpanzees are logging, hunting, encroachment due to agricultural expansion, and uncontrolled harvesting of terrestrial plants.
- Conservation activities are not documented.
- The site is designated as a Ramsar site and features Lake Barombi, well-known for its high density of endemic species.
Site characteristics
The Lake Barombi Forest Reserve is located in eastern Cameroon and covers an area of over 850 ha. The site is named after an oval lake 2.5 km in diameter and 110 m deep, lying in a crater with a slope of 150 m at its highest point, and surrounded by tropical forest (Eno Nku 2004). The lake is famous among biologists for the occurrence of 12 endemic fish species, making it one of the places with the highest densities of endemic species per area in the world (Ramsar 2006). The site is also important due to the presence of freshwater sponges, one of which (Corvospongilla thysi) is also endemic. The lake is an important sacred site to the Barombi Mbo People and also used for fishing, transport, and farming of the surrounding land (Ramsar 2006). It is also a source of clean water for the metropolis of Kumba and its surrounding (Ramsar 2006). The site was designated as a Ramsar site in 2006.
Table 1. Basic site information for Lake Barombi Mbo Forest Reserve
Area | 8.5 km² |
Coordinates | 4.669490 N, 9.382303 E |
Designation | Forest Reserve |
Habitat types | Subtropical/tropical moist lowland forest |
IUCN habitat categories Site designations
Ape status
Vocalisation documented during a recce survey (Eno Nku 2004).
Table 2. Ape population estimates in Lake Barombi Mbo Forest Reserve
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 ellioti | 2004 | Present | Lake Barombi Mbo Forest Reserve | Index survey (reconnaissance walk) | Eno Nku (2004) | survey effort 4.5 km |
Threats
The competition for farmland in the area that began in 1989 led to the extensive conversion of forest into farmland (Eno Nku 2004). A stripe of forest still exists along the lakeshore to shield the farms, but behind is extended plantations. Other threats include timber extraction, hunting, farming, fuel wood collection, overfishing, use of pesticides, and uncontrolled harvesting of NTFPs (Eno Nku 2004).
Table 3. Threats to apes in Lake Barombi Mbo Forest Reserve
Category | Specific threats | Threat level | Quantified severity | Description | Year of threat |
---|---|---|---|---|---|
1. Residential & commercial development | Unknown | ||||
2. Agriculture & aquaculture | 2.1 Annual & perennial non-timber crops | High | Habitat encroachment due to agricultural expansion (Eno Nku 2004). | Ongoing (2004) | |
3. Energy production & mining | Unknown | ||||
4. Transportation & service corridors | Unknown | ||||
5. Biological resource use | 5.1 Hunting & collecting terrestrial animals | High | Unsustainable hunting (Eno Nku 2004). | Ongoing (2004) | |
5.2 Gathering terrestrial plants | High | Uncontrolled harvesting of NTFPs (Eno Nku 2004). | Ongoing (2004) | ||
5.3 Logging & wood harvesting | High | Timber extraction and fuelwood collection (Eno Nku 2004). | Ongoing (2004) | ||
6. Human intrusion & disturbance | Unknown | ||||
7. Natural system modifications | Unknown | ||||
8. Invasive & other problematic species, genes, diseases | Unknown | ||||
9. Pollution | 9.3 Agricultural & forestry effluents | Present, but threat severity unknown | Pesticide spraying of cocoa-trees (Ramsar 2006). | Ongoing (2006) | |
10. Geological Events | Absent | ||||
11. Climate change & severe weather | Unknown | ||||
12. Other options | Absent |
Conservation activities
Table 4. Conservation activities in Lake Barombi Mbo Forest Reserve
Category | Specific activity | Description | Year of activity |
---|---|---|---|
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 | Not reported | ||
12. Species Management | Not reported | ||
13. Livelihood; Economic & Other Incentives | Not reported |
Conservation activities list (Junker et al. 2017)
Challenges
Table 5. Challenges reported for Lake Barombi Mbo Forest Reserve
Challenge | Source |
---|---|
Not reported |
Research activities
Documented behaviours
Table 6. Ape behaviors reported for Lake Barombi Mbo Forest Reserve
Behavior | Source |
---|---|
Not reported |
External links
References
Eno Nku, M. (2004). Large mammal reconnaissance surveys of Lake Barombi Mbo and Southern Banduku Forests Reserves, SW Province. Report to Wildlife Conservation Society & MINEF.
Ramsar (2006). Barombi Mbo Crater Lake. Online: https://rsis.ramsar.org/fr/ris/1643
Page completed by: A.P.E.S. Wiki team Date: 28/02/2022