EN
Gola Malimbe Malimbus ballmanni



Taxonomy

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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- A2c+3c+4c A2c+3c+4c

Red List history
Year Category Criteria
2018 Endangered A2c+3c+4c
2016 Endangered A2c+3c
2012 Endangered A2c+3c+4c
2008 Endangered A2c; A3c; A4c
2004 Endangered
2000 Endangered
1996 Endangered
1994 Endangered
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 75,300 medium
Number of locations 2-5 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 6000-15000 poor estimated 2000
Population trend Decreasing medium suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 50-79 - - -
Decline (10 years/3 generation past and future) 50-79 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations - - -
Generation length (yrs) 3.6 - - -

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. The eastern population extends into western Côte d'Ivoire (Goin Débé and Cavally Forest Reserves), covering an area of at least 18,000 km2, where it is locally common; the population has been estimated to lie in the region of 20,000-50,000 birds. However, this estimate is considered optimistic (H. Rainey in litt. 2007). Extrapolated data for the total population must be treated with caution as the species appears to be very rare and localised in the western part of its range (J. Lindsell in litt. 2007).

Trend justification: The total population is suspected to be declining very rapidly in line with severe habitat loss and degradation.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Côte d'Ivoire N Extant Yes
Guinea N Extant Yes
Liberia N Extant Yes
Sierra Leone N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Côte d'Ivoire Cavally and Goin - Debe Forest Reserves
Liberia Zwedru
Liberia Cestos - Senkwen
Liberia Sapo
Sierra Leone Gola Forests
Guinea Massif du Ziama
Sierra Leone Gola Forest Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 400 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2020) Species factsheet: Malimbus ballmanni. Downloaded from http://www.birdlife.org on 02/12/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 02/12/2020.