EN
Uluguru Bush-shrike Malaconotus alius



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
- B1ab(iii)+2ab(iii) B1ab(iii)+2ab(iii); D2

Red List history
Year Category Criteria
2017 Endangered B1ab(iii)+2ab(iii)
2016 Critically Endangered B1ab(iii)
2012 Critically Endangered B1ab(iii)
2010 Critically Endangered B1a+b(iii)
2009 Critically Endangered B1a+b(iii)
2008 Critically Endangered
2006 Critically Endangered
2004 Endangered
2000 Endangered
1996 Critically Endangered
1994 Critically Endangered
1988 Threatened
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 140 medium
Extent of Occurrence breeding/resident (km2) 43
Number of locations 1 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2400 good estimated 2000
Population trend Stable medium estimated -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 1 - - -
Largest subpopulations 100 - - -
Generation length (yrs) 4.4 - - -

Population justification: A survey in 1999-2000 estimated the population at 1,200 pairs or 2,400 mature individuals, and repeat surveys in 2006, 2007 and 2015 found that it had not changed significantly (J. John in litt. 2016). This total roughly equates to 3,600 individuals in total.

Trend justification: Although available habitat is probably declining in extent and quality, repeat surveys have not revealed population declines (J. John in litt. 2007). Habitat has been lost from outside the northern end of the Uluguru Nature Reserve, but restoration in the 100 ha Bunduki gap is being conducted, hence the population may remain stable into the future. 


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Tanzania N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Tanzania Uluguru Mountains

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1100 - 1950 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 Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Declines Medium Impact: 7
Stresses
Ecosystem degradation
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Unspecified species Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2021) Species factsheet: Malaconotus alius. Downloaded from http://www.birdlife.org on 26/02/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/02/2021.