CR
Fatu Hiva Monarch Pomarea whitneyi



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
A2be+4be; B1ab(ii,v); C2a(i,ii); D A2be+4be; B1ab(ii,v); C2a(i,ii); D A2be+4be; B1ab(ii,v); C1+2a(i,ii); D1+2

Red List history
Year Category Criteria
2018 Critically Endangered A2be+4be; B1ab(ii,v); C2a(i,ii); D
2016 Critically Endangered A2be+4be;B1ab(ii,v);C2a(i,ii);D
2015 Critically Endangered A2be+4be;B1ab(ii,v);C2a(i,ii);D
2013 Critically Endangered A2be+4be;B1ab(ii,v);C2a(i,ii);D
2012 Critically Endangered A2be+4be;B1ab(ii,v);C2a(i,ii);D
2011 Critically Endangered A2b,e; A4b,e; B1a+b(v); C2a(ii)
2009 Critically Endangered B1a+b(v)
2008 Critically Endangered
2004 Critically Endangered
2000 Critically Endangered
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 97 medium
Number of locations 1 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 33 good estimated 2012
Population trend Decreasing good inferred -
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) 80-100 - - -
Number of subpopulations 1 - - -
Largest subpopulations 100 - - -
Generation length (yrs) 6.9 - - -

Population justification: The population was estimated to number 67 individuals in 2009 (T. Ghestemme in litt. 2010). Based on a 30% decline in territories since this estimate, it is now thought to number c. 50 birds, roughly equivalent to 33 mature individuals (T. Ghestemme in litt. 2012).

Trend justification: In February 2000 the total population was estimated at a few hundred pairs (Thibault and Meyer 2001, Gouni 2006), but by 2011 the total population was estimated to have fallen to as low as 50 individuals (Anon. 2010, T. Ghestemme in litt. 2010, 2012). Since the first observation of Black Rats Rattus rattus on Fatu Hiva in 2000 there has been an extremely rapid population decline equating to over 90% over three generations (21 years). Recent predator control has reduced the rate of territory loss from 60% in 2007-2009, to 30% in 2009-2011 (Ghestemme 2012). Between 2010 and 2012, the population started to increase slowly, with the number of adult individuals in protected areas increasing from 27 to 36 (Ghestemme 2013).



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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
French Polynesia Fatu Hiva

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane major resident
Shrubland Subtropical/Tropical Moist major resident
Altitude 50 - 775 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, Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Felis catus Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Rattus rattus Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Reduced reproductive success
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Reduced reproductive success

Recommended citation
BirdLife International (2019) Species factsheet: Pomarea whitneyi. Downloaded from http://www.birdlife.org on 24/08/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 24/08/2019.