EN
Raiatea Fruit-dove Ptilinopus chrysogaster



Taxonomy

Taxonomic note
Ptilinopus purpuratus and P. chrysogaster (del Hoyo and Collar 2014) were previously lumped as P. purpuratus following Sibley and Monroe (1990, 1993).

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.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- B1ab(iii) B1ab(iii)

Red List history
Year Category Criteria
2018 Endangered B1ab(iii)
2016 Near Threatened D1+2
2014 Near Threatened D1+2
2012 Not Recognised
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

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

Estimate Data quality
Extent of Occurrence (breeding/resident) 3,800 km2
Number of locations 2-5 -
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 1000-2499 mature individuals poor suspected -
Population trend decreasing - suspected -
Generation length 3.2 years - - -
Number of subpopulations 4-5 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: On Huahine (75 km2) and Raiatea (168 km2) it was described as reasonably common and occurring at densities of 6-7 per hectare in some parts of Raiatea. On Tahaa (90 km2), Bora Bora (29 km2) and Maupiti (11 km2) it is uncommon, with populations in 1973 estimated at 500, 50 and 100 birds respectively (Gibbs et al. 2001). Current population sizes on these islands are unknown, and there appear to be no estimates for Huahine and Raiatea. The total population is presumed to be greater than 1,000 mature individuals, and may lie within the band 1,000-2,499 mature individuals.

Trend justification: The population is suspected to be declining based on a lack of recent sightings on Maupiti and the presence across the species's range of swamp harrier (Circus approximans), which has been recorded preying on the species (C. Blanvillain in litt. 2018). Additionally, the species's habitat quality is thought to be declining due to invasive plant species (C. Blanvillain in litt. 2018).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
French Polynesia extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
French Polynesia Vallée de Avera

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 450 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Circus approximans Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Felis catus Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Rattus exulans Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Rattus rattus Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Unspecified species Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation

Utilisation
Purpose Scale
Food - human subsistence, national
Food - human subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Raiatea Fruit-dove Ptilinopus chrysogaster. Downloaded from https://datazone.birdlife.org/species/factsheet/raiatea-fruit-dove-ptilinopus-chrysogaster 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.