Taxonomic note
Trichoglossus haematodus, T. forsteni, T. capistratus, T. weberi, T. rubritorquis, T. moluccanus and T. rosenbergii (del Hoyo and Collar 2014) were previously lumped as T. haematodus following Christidis and Boles (1994), and before then were split as T. haematodus and T. rubritorquis 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.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | A2d+3d+4d; C2a(i) | A2d+3d+4d; C2a(i); D1 |
Year | Category | Criteria |
---|---|---|
2020 | Endangered | A2d+3d+4d; C2a(i) |
2016 | Vulnerable | C2a(i) |
2014 | Near Threatened | A2cd+3cd+4cd |
2012 | Not Recognised | |
2008 | Not Recognised | |
2004 | Not Recognised | |
2000 | Not Recognised | |
1994 | Not Recognised | |
1988 | Not Recognised |
Migratory status | nomadic | Forest dependency | low |
Land-mass type | Average mass | 130 g |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 34,500 km2 | medium |
Number of locations | 10-19 | - |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 500-1500 mature individuals | poor | suspected | 2020 |
Population trend | decreasing | - | inferred | 2010-2025 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 50-79% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 50-79% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 50-79% | - | - | - |
Generation length | 5 years | - | - | - |
Number of subpopulations | 3-5 | - | - | - |
Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: Population density estimates of the congener Coconut Lorikeet (Trichoglossus haematodus) number 1.9-33 individuals/km2 for Sumbawa (Marsden 1999). Assuming that 10% of the mapped range is occupied by the species, Scarlet-breasted Lorikeet may therefore number 2,100-37,000 individuals, roughly equating to 1,400-25,000 mature individuals. However, the population is thought to number closer to the lower end of the estimate, and considering the known rarity of the species due to increasing pressure from trapping for trade, the population is suspected to be below 1,500 mature individuals. Thus, population size is tentatively placed here in the band of 500-1,500 mature individuals. It is further considered that the largest population on Sumbawa may not exceed 250 mature individuals.
Trend justification: The population is suspected to be undergoing a rapid decline of 50-79% over a three-generation period (15 years; Bird et al. 2020) owing to unsustainable levels of exploitation.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Indonesia | extant | native | yes |
Country/Territory | IBA Name |
---|
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Plantations | suitable | resident |
Artificial/Terrestrial | Urban Areas | suitable | resident |
Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
Forest | Subtropical/Tropical Moist Lowland | suitable | resident |
Forest | Subtropical/Tropical Moist Montane | suitable | resident |
Forest | Subtropical/Tropical Swamp | suitable | resident |
Shrubland | Subtropical/Tropical Dry | suitable | resident |
Shrubland | Subtropical/Tropical Moist | suitable | resident |
Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | suitable | resident |
Altitude | 0 - 700 m | Occasional altitudinal limits |
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%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Agriculture & aquaculture | Wood & pulp plantations - Agro-industry plantations | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Very Rapid Declines | Medium Impact: 7 | ||||||
|
|||||||||
Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
|||||||||
Natural system modifications | Other ecosystem modifications | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Purpose | Scale |
---|---|
Food - human | subsistence, national |
Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Scarlet-breasted Lorikeet Trichoglossus forsteni. Downloaded from
https://datazone.birdlife.org/species/factsheet/scarlet-breasted-lorikeet-trichoglossus-forsteni on 14/12/2024.
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 14/12/2024.