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 |
---|---|---|
- | - | C1+2a(i) |
Year | Category | Criteria |
---|---|---|
2016 | Vulnerable | C1+2a(i) |
2012 | Vulnerable | C2a(i) |
2008 | Vulnerable | C2a(i) |
2004 | Vulnerable | |
2000 | Vulnerable | |
1996 | Vulnerable | |
1994 | Vulnerable | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | High |
Land mass type |
Land-mass type - shelf island |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 147,000 | medium |
Number of locations | 11-100 | - |
Fragmentation | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 2500-9999 | poor | estimated | 1999 |
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) | 20-29 | - | - | - |
Decline (10 years/3 generation past and future) | - | - | - | |
Number of subpopulations | 2-100 | - | - | - |
Largest subpopulations | - | - | - | |
Generation length (yrs) | 7.1 | - | - | - |
Population justification: The population is placed in the range 2,500-9,999 mature individuals based on recent data (F. Hawkins in litt. 2003). This equates to 3,750-14,999 individuals, rounded here to 3,500-15,000 individuals.
Trend justification: The population is suspected to be declining in line with the clearance and degradation of lowland rainforest within the species's range. The likely rate of decline has not been fully estimated, but modelling the possible effects of climate change have shown that this species's ecological niche may decline by 52% due to climate change over the 50 year period from 2000 to 2050 (Andriamasimanana and Cameron 2013). Assuming a linear decrease, this would equate to a c.27% decline in its ecological niche over its next 3 generations, placed here in the range of 20-29% (c.18% in next 2 generations; c.9% in next generation).
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Madagascar | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Madagascar | South Anjanaharibe Special Reserve and extension |
Madagascar | Marojejy National Park |
Madagascar | Upper Rantabe Classified Forest |
Madagascar | Ambatovaky Special Reserve |
Madagascar | Zahamena National Park and Strict Reserve |
Madagascar | Ankeniheny Classified Forest |
Madagascar | Andohahela National Park - Section I |
Madagascar | Vondrozo Classified Forest NPA |
Madagascar | Tsaratanana-Marojejy Corridor NPA (COMATSA) |
Madagascar | Makira Natural Park |
Madagascar | Mananara-North National Park |
Madagascar | Anjanharibe-Sud - Marojejy Future Proposed Protected Area |
Madagascar | Zahamena-Mantadia SAPM |
Madagascar | Ankeniheny Zahamena Corridor NPA (CAZ) |
Madagascar | Ankeniheny - Lakato NPA |
Madagascar | Bemanevika NPA / Tsaratanana massif (south-west) |
Madagascar | Ankarafantsika National Park and Ampijoroa |
Madagascar | Mantadia National Park and Analamazaotra Special Reserve |
Madagascar | Masoala National Park |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Altitude | 100 - 900 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (large 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%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Recommended citation
BirdLife International (2021) Species factsheet: Newtonia fanovanae. Downloaded from
http://www.birdlife.org on 08/03/2021.
Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 08/03/2021.