Difference between revisions of "Zanaga"
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= Summary = | = Summary = | ||
− | <div style="float: right">{{#display_map: height=190px | width=300px | scrollzoom=off | zoom=5 | layers= OpenStreetMap, OpenTopoMap|-2.468761, 13.627850~[[Zanaga]]~Pan troglodytes troglodytes, Gorilla gorilla gorilla}}</div> | + | <div style="float: right">{{#display_map: height=190px | width=300px | scrollzoom=off | zoom=5 | layers= OpenStreetMap, OpenTopoMap|-2.468761, 13.627850~[[Zanaga]]~'Pan troglodytes troglodytes'', ''Gorilla gorilla gorilla''}}</div> |
* Central chimpanzees (''Pan troglodytes troglodytes'') and western lowland gorillas (''Gorilla gorilla gorilla'') are present in Zanaga. | * Central chimpanzees (''Pan troglodytes troglodytes'') and western lowland gorillas (''Gorilla gorilla gorilla'') are present in Zanaga. | ||
* The population size is unknown. | * The population size is unknown. | ||
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{| border="1" cellpadding="5" cellspacing="0" class="Site_characteristics-table" | {| border="1" cellpadding="5" cellspacing="0" class="Site_characteristics-table" | ||
|Species | |Species | ||
− | |Pan troglodytes troglodytes, Gorilla gorilla gorilla | + | |'Pan troglodytes troglodytes'', ''Gorilla gorilla gorilla'' |
|- | |- | ||
|Area | |Area | ||
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!Species | !Species | ||
!Year | !Year | ||
+ | !Occurrence | ||
+ | !Encounter or vistation rate (nests/km; ind/day) | ||
+ | !Density estimate [ind./ km²] (95% CI) | ||
!Abundance estimate (95% CI) | !Abundance estimate (95% CI) | ||
− | ! | + | !Survey area |
− | ! | + | !Sampling method |
− | ! | + | !Analytical framework |
− | |||
!Source | !Source | ||
!Comments | !Comments | ||
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|- | |- | ||
|''Pan troglodytes troglodytes'' | |''Pan troglodytes troglodytes'' | ||
+ | | | ||
| | | | ||
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|Zanaga | |Zanaga | ||
|Unknown | |Unknown | ||
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|- | |- | ||
|''Gorilla gorilla gorilla'' | |''Gorilla gorilla gorilla'' | ||
+ | | | ||
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|Zanaga | |Zanaga | ||
|Unknown | |Unknown | ||
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!Year of threat | !Year of threat | ||
|- | |- | ||
− | | | + | |10 Geological events |
| | | | ||
− | | | + | |Absent |
| | | | ||
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|- | |- | ||
− | | | + | |12 Other threat |
| | | | ||
− | | | + | |Absent |
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|3 Energy production & mining | |3 Energy production & mining | ||
|3.2 Mining & quarrying | |3.2 Mining & quarrying | ||
− | |High | + | |High (more than 70% of population affected) |
− | |Presence of a large scale iron ore mine project ([ https://www.zanagair on.com/project/ Zanaga Iron Ore Project]) . | + | |Presence of a large scale iron ore mine project ([https://www.zanagair on.com/project/ Zanaga Iron Ore Project]) . |
|Ongoing (2023) | |Ongoing (2023) | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
|- | |- | ||
|5 Biological resource use | |5 Biological resource use | ||
|5.1 Hunting & collecting terrestrial animals | |5.1 Hunting & collecting terrestrial animals | ||
− | |High | + | |High (more than 70% of population affected) |
|Commercial hunting is the biggest threat to wildlife in the area (IUCN 2014). | |Commercial hunting is the biggest threat to wildlife in the area (IUCN 2014). | ||
|Ongoing (2014) | |Ongoing (2014) | ||
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|5 Biological resource use | |5 Biological resource use | ||
|5.3 Logging & wood harvesting | |5.3 Logging & wood harvesting | ||
− | |High | + | |High (more than 70% of population affected) |
|Three Asian logging companies operating in overlapping parts of the mine concession. Loggers are principally interested in exploiting and exporting Okoumé (Aucoumea klaineana), a hardwood used for plywood (Stiles 2014). | |Three Asian logging companies operating in overlapping parts of the mine concession. Loggers are principally interested in exploiting and exporting Okoumé (Aucoumea klaineana), a hardwood used for plywood (Stiles 2014). | ||
|Ongoing (2014) | |Ongoing (2014) | ||
|- | |- | ||
− | | | + | |1 Residential & commercial development |
+ | | | ||
+ | |Unknown | ||
+ | | | ||
+ | | | ||
+ | |- | ||
+ | |2 Agriculture & aquaculture | ||
| | | | ||
|Unknown | |Unknown | ||
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|- | |- | ||
− | | | + | |4 Transportation & service corridors |
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|Unknown | |Unknown | ||
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|- | |- | ||
− | | | + | |6 Human intrusions & disturbance |
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|Unknown | |Unknown | ||
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|- | |- | ||
− | | | + | |7 Natural system modifications |
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|Unknown | |Unknown | ||
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|- | |- | ||
− | | | + | |8 Invasive & other problematic species, genes & diseases |
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− | | | + | |Unknown |
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|- | |- | ||
− | | | + | |9 Pollution |
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|Unknown | |Unknown | ||
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|- | |- | ||
− | | | + | |11 Climate change & severe weather |
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− | | | + | |Unknown |
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Latest revision as of 09:18, 18 March 2025
Central Africa > Republic of the Congo > Zanaga
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Summary
- Central chimpanzees (Pan troglodytes troglodytes) and western lowland gorillas (Gorilla gorilla gorilla) are present in Zanaga.
- The population size is unknown.
- The population trend is unknown.
- The site has a total size of 25,570 km².
- Key threats to apes are illegal logging, hunting and mining activities.
- Conservation activities are not documented.
Site characteristics
The site is part of the Birougou-Batéké-Zanaga landscape, which has been identified as a priority landscape for western lowland gorilla and central chimpanzee conservation (IUCN 2014). The site overlaps with one of the largest iron ore deposits in Africa, located in a strip 47 kilometres long and three kilometres wide in the Republic of the Congo, bordering Gabon. A core section of the GuineoCongolian Forest is found over this vast mineral deposit, where endangered species like western lowland gorillas, chimpanzees, and forest elephants are found. Moreover, adjacent to the deposit lies the Ogooué River, one of Africa’s largest rivers by discharge (Stiles 2014).
Table 1. Basic site information for Zanaga
Species | 'Pan troglodytes troglodytes, Gorilla gorilla gorilla |
Area | 25,570 km² |
Coordinates | Lat: -2.468761 , Lon: 13.627850 |
Type of site | Logging concession |
Habitat types | Subtropical/tropical moist lowland forest |
Type of governance |
IUCN habitat categories Site designations
Ape status
Table 2. Ape population estimates reported for Zanaga
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 troglodytes | Zanaga | Unknown | |||||||||
Gorilla gorilla gorilla | Zanaga | Unknown |
Threats
Zanaga Iron Ore Company Limited is an iron ore exploration and development company, incorporated in the British Virgin Islands. The Company listed on AIM in November 2010 and trades under the symbol “ZIOC”. The logging companies operating in the area have already done a great deal of damage to the ecosystem diversity and composition of the forests surrounding the mine (Sitles 2014).
Table 3. Threats to apes reported for Zanaga
Category | Specific threats | Threat level | Description | Year of threat |
---|---|---|---|---|
10 Geological events | Absent | |||
12 Other threat | Absent | |||
3 Energy production & mining | 3.2 Mining & quarrying | High (more than 70% of population affected) | Presence of a large scale iron ore mine project (on.com/project/ Zanaga Iron Ore Project) . | Ongoing (2023) |
5 Biological resource use | 5.1 Hunting & collecting terrestrial animals | High (more than 70% of population affected) | Commercial hunting is the biggest threat to wildlife in the area (IUCN 2014). | Ongoing (2014) |
5 Biological resource use | 5.3 Logging & wood harvesting | High (more than 70% of population affected) | Three Asian logging companies operating in overlapping parts of the mine concession. Loggers are principally interested in exploiting and exporting Okoumé (Aucoumea klaineana), a hardwood used for plywood (Stiles 2014). | Ongoing (2014) |
1 Residential & commercial development | Unknown | |||
2 Agriculture & aquaculture | Unknown | |||
4 Transportation & service corridors | Unknown | |||
6 Human intrusions & disturbance | Unknown | |||
7 Natural system modifications | Unknown | |||
8 Invasive & other problematic species, genes & diseases | Unknown | |||
9 Pollution | Unknown | |||
11 Climate change & severe weather | Unknown |
Conservation activities
Challenges
Table 5. Challenges reported for Zanaga
Challenges | Specific challenges | Source | Year(s) |
---|---|---|---|
Not reported |
Enablers
Table 6. Enablers reported for Zanaga
Enablers | Specific enablers | Source | Year(s) |
---|---|---|---|
1 Site management | |||
2 Resources and capacity | |||
3 Engaged community | |||
4 Institutional support | |||
5 Ecological context | |||
6 Safety and stability |
Research activities
Documented behaviours
Table 7. Behaviours documented for Zanaga
Behavior | Source |
---|---|
Not reported |
Exposure to climate change impacts
External links
Relevant datasets
References
IUCN (2014). Regional Action Plan for the Conservation of Western Lowland Gorillas and Central Chimpanzees 2015–2025. Gland, Switzerland: IUCN SSC Primate Specialist Group. 56 pp.
Stiles, D. (2014). The Zanaga iron ore mine – a test of best laid plans for preserving wildlife. Retrieved February 27, 2023 from Mongabay. https://news.mongabay.com/2014/10/the-zanaga-iron-ore-mine-a-testof-best-laid-plans-for-preserving-wildlife/
Page created by: A.P.E.S. Wiki team Date: NA