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

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2021	Near Threatened	B1ab(iii)+2ab(iii)
2016	Near Threatened	C2a(ii)
2012	Near Threatened	C2a(ii)
2011	Near Threatened	C2a(ii)
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Migratory status	not a migrant	Forest dependency	medium
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	750 km2	good
Area of Occupancy (breeding/resident)	576 km2
Number of locations	11-100	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	50000-99999 mature individuals	poor	estimated	2014
Population trend	decreasing	poor	suspected	-
Rate of change over the past 10 years/3 generations (longer of the two periods)	16.3%	-	-	-
Generation length	4.7 years	-	-	-
Number of subpopulations	2	-	-	-

Population justification: Using spatially explicit habitat models linked to density functions conducted, Oleiro and Kesler (2015) estimated a population of 100,803 individuals on Pohnpei. This is roughly equivalent to 67,202 mature individuals, placed here in the band 50,000-99,999 mature individuals.

Trend justification: The results of surveys conducted in 1994 suggested that a decline of 74-75% had occurred since 1983 (Buden 2000). Compared with surveys in 1994 (Buden 2000), Oleiro and Kesler (2015) found that detection rates in surveys conducted in 2012 decreased by 20.4%. This is equivalent to a rate of decline of 16.3% over three generations (14.1 years [Bird et al. 2020]). The authors also found that since 1983, detection rates in mangroves increased, but decreased over time in all other habitats (R. Davis in litt. 2020). Modelling of future landscape scenarios by Oleiro and Kesler (2015) predicted that the population would increase by 15% over 100 years. This would be equivalent to an increase of c.2% over three generations, suggesting that in future the population may become stable to increasing. However, detections of this species were negatively associated with disturbed habitats (R. Davis in litt. 2020), and despite a slowing of the rate that native forests are converted to agriculture, it appears to still be ongoing (B. Raynor in litt. 2012; Ellis et al. 2018), and therefore the overall current population trend is suspected to be declining. 

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Micronesia, Federated States of	extant	native	yes

Country/Territory	IBA Name
Micronesia, Federated States of	Pohnpei Watershed Forest Reserve

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Altitude	0 - 600 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%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species mortality
Biological resource use	Hunting & trapping terrestrial animals - Persecution/control	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species mortality
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Pohnpei Lorikeet Trichoglossus rubiginosus. Downloaded from https://datazone.birdlife.org/species/factsheet/pohnpei-lorikeet-trichoglossus-rubiginosus on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/12/2024.