LC
Grey-green Fruit-dove Ptilinopus purpuratus



Taxonomy

Taxonomic note
Ptilinopus purpuratus and P. chrysogaster (del Hoyo and Collar 2014) were previously lumped asP. 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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2014 Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,900
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 not applicable not applicable 2011
Population trend Decreasing 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) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -

Population justification: Both Moorea and Tahiti are now thought to hold populations of a few thousand individuals (J. C. Thibault pers comm in Spotswood 2011), therefore the total population is estimated to lie within the band 2,500-9,999 mature individuals. In 1973 there were an estimated 5,000-6,000 birds on Moorea with 2-3 birds per hectare in some valleys (Gibbs et al. 2001, Spotswood 2011).

Trend justification: It was reportedly very abundant in 1907, but is thought to have declined since 1900, though no systematic surveys have quantified changes and a survey of valleys in Tahiti suggested that populations remained stable in the 20th century (Monnet et al. 1993 in Spotswood 2011). Nevertheless a slow population decline is suspected owing to habitat loss and degradation, including the spread of non-native vegetation. Further potential threats include predation by Swamp Harrier Circus approximans and feral cats, competition with non-native Red-vented Bulbul Pycnonotus cafer and Common Myna Acridotheres tristis, and predation of eggs by rats.


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 Vallée d'Opunohu
French Polynesia Vallée de la Papenoo
French Polynesia Baie de Port Phaéton et lagune de Mitirapa
French Polynesia Crêtes et pentes du Mont Marau
French Polynesia Vallées Maruapo, Papehue, Hopuetamai et Orofero

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 1000 m Occasional altitudinal limits  

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - - Non-trivial Recent

Recommended citation
BirdLife International (2022) Species factsheet: Ptilinopus purpuratus. Downloaded from http://www.birdlife.org on 19/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/08/2022.