• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	C1+2a(i)

Red List history

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	Ambatovaky Special Reserve
Madagascar	Andohahela National Park - Section I
Madagascar	Ankeniheny Classified Forest
Madagascar	Mananara-North National Park
Madagascar	Marojejy National Park
Madagascar	South Anjanaharibe Special Reserve and extension
Madagascar	Upper Rantabe Classified Forest
Madagascar	Vondrozo Classified Forest NPA
Madagascar	Zahamena National Park and Strict Reserve

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	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Slow, Significant Declines		Low Impact: 5
		Stresses Indirect ecosystem effects, Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2019) Species factsheet: Newtonia fanovanae. Downloaded from http://www.birdlife.org on 22/08/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/08/2019.