Taxonomic note
Zosterops melanocephalus (del Hoyo and Collar 2016) was previously listed as Speirops melanocephalus.
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | D2 |
Year | Category | Criteria |
---|---|---|
2016 | Vulnerable | D2 |
2012 | Vulnerable | D2 |
2008 | Vulnerable | D2 |
2004 | Vulnerable | |
2000 | Vulnerable | |
1996 | Vulnerable | |
1994 | Vulnerable | |
1988 | Lower Risk/Least Concern |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type |
continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 230 km2 | medium |
Number of locations | 1 | - |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 6000-15000 mature individuals | poor | estimated | 2000 |
Population trend | stable | - | suspected | - |
Generation length | 4.4 years | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: The population size is preliminarily estimated to fall into the band 10,000-19,999 individuals. This equates to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Cameroon | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Cameroon | Mount Cameroon and Mokoko-Onge |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Montane | major | resident |
Shrubland | Subtropical/Tropical High Altitude | major | resident |
Altitude | 1800 - 3000 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Geological events | Volcanoes | Timing | Scope | Severity | Impact | ||||
Past, Likely to Return | Majority (50-90%) | Rapid Declines | Past Impact | ||||||
|
|||||||||
Natural system modifications | Fire & fire suppression - Trend Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Causing/Could cause fluctuations | Medium Impact: 6 | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Mount Cameroon Speirops Zosterops melanocephalus. Downloaded from
https://datazone.birdlife.org/species/factsheet/mount-cameroon-speirops-zosterops-melanocephalus on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.