EN
Abbott's Booby Papasula abbotti



Taxonomy

Taxonomic source(s)
Christidis, L. and Boles, W.E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
Christidis, L.; Boles, W. E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
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
- B2ab(ii,iii) A2bcde; B2ab(ii,iii); D2

Red List history
Year Category Criteria
2016 Endangered B2ab(ii,iii)
2012 Endangered B2ab(ii,iii,v)
2010 Endangered B2a+b(ii,iii,v)
2008 Endangered B2a+b(iii)
2006 Endangered
2005 Endangered
2004 Critically Endangered
2000 Critically Endangered
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

Migratory status full migrant Forest dependency Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 80 medium
Extent of Occurrence non-breeding (km2) 684,000 medium
Extent of Occurrence breeding/resident (km2) 31 good
Number of locations 1 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 6000 medium estimated 2007
Population trend Stable medium 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) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 1 - - -
Largest subpopulations 100 - - -
Generation length (yrs) 14.1 - - -

Population justification: Following an estimate of 2,500 active pairs in 1991, the total number of mature individuals has been put at c.6,000, equating to c.9,000 individuals in total. It should be noted that only a proportion breed in a given year owing to a 15-18 month breeding cycle and the possibility that some unsuccessful pairs take 'rest years' rather than breed in successive years. Despite a helicopter survey in 2002, the 1991 survey is considered the most accurate and comprehensive.

Trend justification: The species's population is estimated to have declined by 30-49% over the last 90 years based on its disappearance from much of its former breeding range in the Indian and Pacific Oceans.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Australia V Extant Yes
Christmas Island (to Australia) N Extant Yes
Indonesia N Extant Yes
Mauritius N Extinct Yes
Seychelles N Extinct Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Christmas Island (to Australia) Christmas Island

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major breeding
Marine Neritic Pelagic major resident
Marine Oceanic Epipelagic (0-200m) major resident
Altitude 160 - 260 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Fishing & harvesting aquatic resources Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Species mortality
Biological resource use Hunting & trapping terrestrial animals Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Species mortality
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Ecosystem degradation
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation, Reduced reproductive success
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Very Rapid Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Declines Medium Impact: 7
Stresses
Indirect ecosystem effects, Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Declines Medium Impact: 7
Stresses
Ecosystem degradation
Pollution Industrial & military effluents Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Ecosystem degradation, Reduced reproductive success
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Future Minority (<50%) Unknown Unknown
Stresses
Species disturbance, Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Very Rapid Declines Past Impact
Stresses
Reduced reproductive success, Species mortality

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2017) Species factsheet: Papasula abbotti. Downloaded from http://www.birdlife.org on 24/11/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 24/11/2017.