EX
Saint Helena Crake Zapornia astrictocarpus



Taxonomy

Taxonomic note
Zapornia astrictocarpus (del Hoyo and Collar 2014) was previously placed in the genus Porzana. Monotypic.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2023. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 8. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v8_Dec23.zip.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2024 Extinct
2016 Extinct
2012 Extinct
2008 Extinct
2004 Extinct
2000 Extinct
1994 Extinct
1988 Extinct
Species attributes

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

Estimate Data quality
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend - - -
Generation length 2.56 years - - -

Population justification: No extant population remains.

Trend justification: Little is known about this species. It is known only from subfossil bones, and became extinct sometime after 1502, likely a few decades after human settlement due to deforestation, over-hunting and introduced animals (Hume 2017).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
St Helena (to UK) extinct native yes

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Unknown suitable resident
Altitude   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 Unknown Unknown Past Impact
Stresses
Reduced reproductive success, Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Past, Unlikely to Return Unknown Unknown Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Unspecified species Timing Scope Severity Impact
Past, Unlikely to Return Unknown Unknown Past Impact
Stresses
Species disturbance, Competition, Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Past, Unlikely to Return Unknown Unknown Past Impact
Stresses
Species mortality

Recommended citation
BirdLife International (2024) Species factsheet: Saint Helena Crake Zapornia astrictocarpus. Downloaded from https://datazone.birdlife.org/species/factsheet/saint-helena-crake-zapornia-astrictocarpus on 22/12/2024.
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 22/12/2024.