Taxonomic note
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.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
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 |
---|---|---|
- | - | B1ab(i,ii,iii,v) |
Year | Category | Criteria |
---|---|---|
2016 | Vulnerable | B1ab(i,ii,iii,v) |
2012 | Vulnerable | B1ab(i,ii,iii,v) |
2008 | Vulnerable | B1a+b(i,ii,iii,v) |
2004 | Vulnerable | |
2000 | Vulnerable | |
1996 | Vulnerable | |
1994 | Vulnerable | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | High |
Land mass type |
Land-mass type - continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 6,700 | medium |
Number of locations | 6-10 | - |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 6000-15000 | poor | estimated | 2016 |
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) | - | - | - | |
Decline (10 years/3 generation past and future) | - | - | - | |
Number of subpopulations | 2-100 | - | - | - |
Percentage in largest subpopulation | - | - | - | |
Generation length (yrs) | 3.8 | - | - | - |
Population justification: The population in the Udzungwas is known from eight localities (Dinesen et al. 2001) and is guessed to exceed 10,000 individuals (L. Dinesen in litt. 2007), because the stronghold for this species in the high altitude part of the Udzungwa forest is likely to be largely unaltered (L. Dinesen in litt. 2016). However, the total population of Nyumbanitu and Ndundulu Forests and Udzungwa National Park has been estimated at possibly no more than 2,500 individuals (L. Hansen in litt. 2007). The range of 10,000-19,999 individuals therefore remains as a preliminary population estimate requiring further documentation. This equates to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.
Trend justification: The species's population is suspected to be in decline owing to the clearance of forest in parts of its range, although the likely rate of decline remains unquantified.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Tanzania | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Tanzania | Udzungwa National Park |
Tanzania | Livingstone Mountains forests |
Tanzania | Njombe forests |
Tanzania | Rubeho Mountains |
Tanzania | Mount Rungwe |
Tanzania | Udzungwa Mountains |
Tanzania | Ukaguru Mountains |
Tanzania | Uvidunda Mountains |
Tanzania | Udzungwa Mountain Range |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Montane | major | resident |
Altitude | 1350 - 2450 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Livestock farming & ranching - Small-holder grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Climate change & severe weather | Habitat shifting & alteration | Timing | Scope | Severity | Impact | ||||
Future | Whole (>90%) | Unknown | Unknown | ||||||
|
Recommended citation
BirdLife International (2022) Species factsheet: Sheppardia lowei. Downloaded from
http://www.birdlife.org on 18/08/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 18/08/2022.