Taxonomic note
Myrmoderus ruficauda (del Hoyo and Collar 2016) was previously listed as Myrmeciza ruficauda.
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | C2a(i) | A2c+3c+4c; C2a(i); D1 |
Year | Category | Criteria |
---|---|---|
2018 | Endangered | C2a(i) |
2016 | Endangered | B1ab(i,ii,iii,iv,v);C2a(i) |
2012 | Endangered | B1ab(i,ii,iii,iv,v);C2a(i) |
2008 | Endangered | B1a+b(i,ii,iii,iv,v); C2a(i) |
2004 | Endangered | |
2000 | Endangered | |
1996 | Vulnerable | |
1994 | Vulnerable | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | Medium |
Land mass type |
Land-mass type - continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 155,000 | medium |
Number of locations | 11-100 | - |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 600-1700 | poor | estimated | 2000 |
Population trend | Decreasing | poor | suspected | - |
Decline (3 years/1 generation past) | - | - | - | |
Decline (5 years/1 generation past) | - | - | - | |
Decline (10 years/1 generation past) | - | - | - | |
Decline (10 years/3 generation future) | 30-49 | - | - | - |
Decline (10 years/3 generation past and future) | 30-49 | - | - | - |
Number of subpopulations | 2-100 | - | - | - |
Percentage in largest subpopulation | 1-89 | - | - | - |
Generation length (yrs) | 4.8 | - | - | - |
Population justification: The population is estimated to number 1,000-2,499 individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 667-1,666 mature individuals, rounded here to 600-1,700 mature individuals.
Trend justification: A rapid and continuing population decline is suspected, owing to rates of habitat loss.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Brazil | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Brazil | Mamanguape |
Brazil | Mata do Estado (Mata do Sirigi) |
Brazil | Serra do Mascarenhas |
Brazil | Igarassu |
Brazil | Tapacurá |
Brazil | Complexo Gurjaú |
Brazil | Brejo dos Cavalos |
Brazil | Guadalupe |
Brazil | Serra do Urubu |
Brazil | Engenho Coimbra (Usina Serra Grande) |
Brazil | Murici |
Brazil | Reserva Biológica de Pedra Talhada |
Brazil | Fazenda Santana |
Brazil | Baixo-Sul |
Brazil | Sooretama / Linhares |
Brazil | Vitória da Conquista |
Brazil | Rio Mucuri |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
Forest | Subtropical/Tropical Dry | major | resident |
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Altitude | 0 - 600 m | Occasional altitudinal limits | (max) 950 m |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
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Agriculture & aquaculture | Livestock farming & ranching - Agro-industry grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
|||||||||
Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
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Recommended citation
BirdLife International (2022) Species factsheet: Myrmoderus ruficauda. Downloaded from
http://www.birdlife.org on 18/08/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 18/08/2022.