VU
Goldie's Bird-of-paradise Paradisaea decora



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
- - C2a(i); D1

Red List history
Year Category Criteria
2022 Vulnerable C2a(i); D1
2016 Vulnerable C2a(i); D1
2014 Vulnerable C2a(i); D1
2012 Near Threatened B1ab(iii);C1+2a(i);D1
2011 Near Threatened B1a+b(iii); C1; C2a(i)
2008 Near Threatened C1
2004 Near Threatened
2000 Lower Risk/Near Threatened
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

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

Estimate Data quality
Extent of Occurrence (breeding/resident) 3,500 km2 good
Area of Occupancy (breeding/resident) 1,308 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 430-450 mature individuals medium estimated 2008
Population trend decreasing - inferred 2013-2030
Rate of change over the past 10 years/3 generations (longer of the two periods) 5-10% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 5-10% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 5-10% - - -
Generation length 5.8 years - - -
Number of subpopulations 2 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: Data from 2008 suggest that the population may be very small, being estimated at only c.650 individuals, with a maximum of 500 individuals on Fergusson Island, and c.150 individuals on Normanby Island (D. Mitchell in litt. 2008). Based on these estimates, the total number of mature individuals is estimated at 450, with c.350 on Fergusson Island. It is unclear whether the population has declined since this estimate was made. Forest cover in this species' mapped range has declined by c.5% since 2008 (Global Forest Watch 2022, based on data from Hansen et al. [2013] and methods disclosed therein) and this may have led to equivalent population losses although this requires confirmation.

Trend justification: Between 1997 and 2007, populations at study sites declined by c.20% for reasons that were not fully elucidated (D. Mitchell in litt. 2008), while more recent trend data are lacking. Remote sensing data in the three generations to 2021 suggest forest cover in the species' mapped range was reduced by c.7% (Global Forest Watch 2022, based on data from Hansen et al. [2013] and methods disclosed therein) and, as a forest dependent species, P. decora is suspected of having declined at a similar rate.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Papua New Guinea extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest marginal resident
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 300 - 700 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 Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Scale
Pets/display animals, horticulture international

Recommended citation
BirdLife International (2024) Species factsheet: Goldie's Bird-of-paradise Paradisaea decora. Downloaded from https://datazone.birdlife.org/species/factsheet/goldies-bird-of-paradise-paradisaea-decora on 23/11/2024.
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 23/11/2024.