IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
D |
| Vulnerable |
|
IUCN Red List history
| Year |
Category |
| 2012 |
Endangered |
| 2010 |
Endangered |
| 2008 |
Endangered |
| 2005 |
Endangered |
| 2004 |
Critically Endangered |
| 2000 |
Critically Endangered |
| 1996 |
Critically Endangered |
| 1994 |
Critically Endangered |
| 1988 |
Threatened |
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) |
155,000 |
medium |
| Area of Occupancy breeding/resident (km2) |
12 |
medium |
| Number of locations |
|
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
90-110 |
medium |
Estimated |
2004 |
| Population trend |
Stable |
medium |
|
- |
| Number of subpopulations |
1 |
- |
- |
- |
| Largest subpopulation |
|
- |
- |
- |
| Generation length (yrs) |
16 |
- |
- |
- |
|
Population justification: The population is estimated to number 130-160 individuals, roughly equating to 90-110 mature individuals. |
|
Trend justification: Prior to the 2010 fires, the breeding population was stable or increasing slightly (Barov and Derhé 2011); with recent increases in population estimates likely the result of increased survey effort (I. Ramírez in litt. 2005). It is too early to determine the effects of the 2010 fires on the long-term trend of the species. However, should new studies reveal the population to be decreasing, the species's status would need to be reassessed. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Portugal |
Native |
No |
Yes |
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| High Seas |
Atlantic, Northeast 2 - Marine |
 |
| High Seas |
Atlantic, Northeast 3 - Marine |
|
| High Seas |
Atlantic, Northeast 4 - Marine |
|
| Portugal |
Maciço Montanhoso Oriental |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Marine Neritic |
Macroalgal/Kelp |
suitable |
breeding |
| Marine Neritic |
Macroalgal/Kelp |
suitable |
non-breeding |
| Marine Neritic |
Pelagic |
major |
non-breeding |
| Marine Neritic |
Pelagic |
major |
breeding |
| Marine Neritic |
Seagrass (Submerged) |
suitable |
non-breeding |
| Marine Neritic |
Seagrass (Submerged) |
suitable |
breeding |
| Marine Neritic |
Subtidal Loose Rock/pebble/gravel |
suitable |
breeding |
| Marine Neritic |
Subtidal Loose Rock/pebble/gravel |
suitable |
non-breeding |
| Marine Neritic |
Subtidal Rock and Rocky Reefs |
suitable |
non-breeding |
| Marine Neritic |
Subtidal Rock and Rocky Reefs |
suitable |
breeding |
| Marine Neritic |
Subtidal Sandy |
suitable |
non-breeding |
| Marine Neritic |
Subtidal Sandy |
suitable |
breeding |
| Marine Neritic |
Subtidal Sandy-Mud |
suitable |
breeding |
| Marine Neritic |
Subtidal Sandy-Mud |
suitable |
non-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
|
1600 - 1700 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 |
Majority (50-90%) |
Slow, Significant Decline |
Past Impact |
| Stresses |
|---|
| Reduced reproductive success, Species mortality |
|
| Human intrusions & disturbance |
Recreational activities |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Unknown |
Unknown |
| Stresses |
|---|
| Species disturbance, Reduced reproductive success |
|
| Natural system modifications |
Fire & fire suppression / Increase in fire frequency/intensity |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Whole (>90%) |
Unknown |
Unknown |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion, Reduced reproductive success, Species mortality |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Black Rat (Rattus rattus) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Unknown |
Unknown |
| Stresses |
|---|
| Reduced reproductive success |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Domestic Cat (Felis catus) |
Timing |
Scope |
Severity |
Impact |
| Past, Likely to Return |
Minority (<50%) |
Rapid Declines |
Past Impact |
| Stresses |
|---|
| Species mortality |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Domestic Sheep (Ovis aries) |
Timing |
Scope |
Severity |
Impact |
| Past, Unlikely to Return |
Majority (50-90%) |
No decline |
Past Impact |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Goat (Capra hircus) |
Timing |
Scope |
Severity |
Impact |
| Past, Unlikely to Return |
Majority (50-90%) |
No decline |
Past Impact |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Climate change & severe weather |
Habitat shifting & alteration |
Timing |
Scope |
Severity |
Impact |
| Future |
Whole (>90%) |
Unknown |
Unknown |
| Stresses |
|---|
| Indirect ecosystem effects, Ecosystem degradation, Ecosystem conversion |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Food (human) |
Whole |
Adults and juveniles |
Wild |
Subsistence, National |
Non-trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Pterodroma madeira. Downloaded from
http://www.birdlife.org on 25/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 25/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
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