Taxonomic note
Laterallus spilonota (del Hoyo and Collar 2014) was previously listed as L. spilonotus.
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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | C1+2a(i) |
Year | Category | Criteria |
---|---|---|
2020 | Vulnerable | C1+2a(i) |
2016 | Vulnerable | B1ab(i,ii,iii,iv,v) |
2013 | Vulnerable | B1ab(i,ii,iii,iv,v) |
2012 | Vulnerable | B1ab(i,ii,iii,iv,v) |
2008 | Vulnerable | B1a+b(i,ii,iii,iv,v) |
2006 | Vulnerable | |
2004 | Vulnerable | |
2000 | Vulnerable | |
1994 | Lower Risk/Near Threatened | |
1988 | Near Threatened |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 15,100 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 3300-6700 mature individuals | medium | estimated | 2000 |
Population trend | decreasing | poor | estimated | 2014-2024 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
Generation length | 2.5 years | - | - | - |
Number of subpopulations | 6 | - | - | - |
Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: The population was estimated to number 5,000-10,000 individuals by Rosenberg (1990), and repeat surveys on Santa Cruz Island in 2000 gave broadly similar results. This roughly equates to 3,300-6,700 mature individuals.
Trend justification: The species is undergoing a slow decline. The rate of decline was extrapolated from a decline in detections of 9% (c.f. 1986-1987 surveys) during 2000 surveys on Santa Cruz (Gibbs et al. 2003). By 2007, the decline was steeper (Shriver et al. 2011). Therefore, the population decline is here tentatively placed in the band 1-19% over ten years.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Ecuador | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Ecuador | Áreas costeras de Fernandina y del occidente de Isabela |
Ecuador | Isla San Cristóbal |
Ecuador | Tierras altas de Isabela |
Ecuador | Tierras altas de Santa Cruz |
Ecuador | Tierras altas de Santiago |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Arable Land | suitable | resident |
Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
Forest | Subtropical/Tropical Moist Montane | major | resident |
Grassland | Subtropical/Tropical High Altitude | major | resident |
Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | major | resident |
Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | major | resident |
Altitude | 0 - 1700 m | Occasional altitudinal limits |
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 | ||||||
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Climate change & severe weather | Temperature extremes | Timing | Scope | Severity | Impact | ||||
Future | Whole (>90%) | Causing/Could cause fluctuations | Low Impact: 5 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Bos taurus | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Canis familiaris | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Capra hircus | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Cinchona pubescens | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Equus caballus | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Felis catus | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Sus domesticus | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Asio flammeus | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Tyto alba | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
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Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
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Recommended citation
BirdLife International (2024) Species factsheet: Galapagos Rail Laterallus spilonota. Downloaded from
https://datazone.birdlife.org/species/factsheet/galapagos-rail-laterallus-spilonota on 22/11/2024.
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 22/11/2024.