EN
Mariana Fruit-dove Ptilinopus roseicapilla



Taxonomy

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
- A3cde; B1ab(iii,iv,v) A3cde; B1ab(iii,iv,v)

Red List history
Year Category Criteria
2016 Endangered A3cde; B1ab(iii,iv,v)
2013 Endangered A3cde; B1ab(iii,v)
2012 Endangered A3cde;B1ab(iii,v)
2008 Endangered A3c,d,e; B1a+b(iii,v)
2004 Endangered
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass 90 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,900 medium
Number of locations 4 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 10000-19999 good estimated 2016
Population trend Decreasing poor estimated -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 50-79 - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 4 - - -
Largest subpopulations 1-89 - - -

Population justification: Based on the most recent surveys, the population was estimated at 16,230 birds, consisting of 9,723 on Saipan (data from 2007 [Camp et al. 2009]), 2,269 on Tinian (data from 2008, [Camp et al. 2012]), 3,383 on Rota (data from 2012 [Camp et al. 2015]) and 855 on Aguijan (data from 2008 [Amidon et al. 2014]).

Trend justification: Analysis of survey data from 1982, 1997 and 2007 indicates that the species' population appears stable on Saipan between 1982 and 2007 (Camp et al. 2009). Surveys in 2008 on Aguijan indicate that the population increased from estimates in 1982 (Amidon et al. in prep.). Surveys in 2008 on Tinian (Camp et al. in press) and 2003 on Rota (Amar et al. 2008) indicate a significant decline on those islands since 1982 . The species has been recently reported on the island of Sarigan, one of the volcanic islands north of Saipan, and may become established on the island through natural colonization. The future rate of decline may be very rapid on Saipan, owing to predation by B. irregularis.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Guam (to USA) N Extinct Yes
Northern Mariana Islands (to USA) N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Northern Mariana Islands (to USA) Rota
Northern Mariana Islands (to USA) Aguiguan Island and Naftan Rock
Northern Mariana Islands (to USA) Tinian Island
Northern Mariana Islands (to USA) Northern Saipan
Northern Mariana Islands (to USA) Topachau-Susupe-Kagman

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Pastureland suitable resident
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Shrubland Subtropical/Tropical Dry suitable resident
Altitude   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 Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
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%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Boiga irregularis Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Leucaena leucocephala Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Named species Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2020) Species factsheet: Ptilinopus roseicapilla. Downloaded from http://www.birdlife.org on 10/07/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 10/07/2020.