VU
Desertas Petrel Pterodroma deserta



Taxonomy

Taxonomic note

Pterodroma feae and P. deserta (del Hoyo and Collar 2014) were previously lumped as P. feae 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
- - D1+2

Red List history
Year Category Criteria
2018 Vulnerable D1+2
2016 Vulnerable D1+2
2014 Vulnerable D1+2
2012 Not Recognised
2010 Not Recognised
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 61,500,000 medium
Extent of Occurrence breeding/resident (km2) 20 medium
Number of locations 1 -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 250-999 good estimated 2012
Population trend Stable 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) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 16 - - -

Population justification: The breeding population at Bugio has been estimated at 160-180 pairs (Menezes et al. 2010, BirdLife International 2015). Based on these data, the population is placed in the band for 250-999 mature individuals, assumed to equate to c.350-1,500 individuals in total.

Trend justification: The population is suspected to be stable (Ramirez 2008), although the species faces a number of threats and is susceptible to stochastic events and human impacts.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Brazil N Extant Yes
Cape Verde N Extant Yes
Guinea-Bissau U Extant
Ireland V Presence Uncertain
Morocco N Extant Yes
Portugal N Extant Yes
Senegal U Presence Uncertain
Spain U Presence Uncertain
United Kingdom V Presence Uncertain
USA N Extant Yes
Western Sahara U Presence Uncertain

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Morocco Canary current shelf 1
Morocco Canary current shelf 2
Morocco Canary current shelf 3

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subtropical/Tropical Dry major breeding
Marine Neritic Pelagic major non-breeding
Marine Neritic Pelagic major breeding
Marine Oceanic Epipelagic (0-200m) major non-breeding
Marine Oceanic Epipelagic (0-200m) major breeding
Rocky areas (eg. inland cliffs, mountain peaks) major breeding
Altitude 50 - 300 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
Past, Unlikely to Return Whole (>90%) Negligible declines Past Impact
Stresses
Species mortality
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Ongoing Majority (50-90%) Causing/Could cause fluctuations Medium Impact: 6
Stresses
Ecosystem degradation, Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Capra hircus Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) Negligible declines Past Impact
Stresses
Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Felis catus Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) Slow, Significant Declines Past Impact
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Named species Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) No decline Past Impact
Stresses
Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Oryctolagus cuniculus Timing Scope Severity Impact
Past, Unlikely to Return Majority (50-90%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation
Invasive and other problematic species, genes & diseases Problematic native species/diseases - Larus michahellis Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Species disturbance, Reduced reproductive success, Species mortality

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

Recommended citation
BirdLife International (2022) Species factsheet: Pterodroma deserta. Downloaded from http://www.birdlife.org on 06/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/12/2022.