Taxonomic source(s)
Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
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.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | A2bc+3c+4bc |
Year | Category | Criteria |
---|---|---|
2022 | Vulnerable | A2bc+3c+4bc |
2016 | Least Concern | |
2012 | Least Concern | |
2009 | Least Concern | |
2008 | Least Concern | |
2004 | Least Concern | |
2000 | Lower Risk/Least Concern | |
1994 | Lower Risk/Least Concern | |
1988 | Lower Risk/Least Concern |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 129,000 km2 | |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 135000-270000, 165000 mature individuals | poor | estimated | 2020 |
Population trend | decreasing | - | inferred | 2016-2026 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
Generation length | 3.26 years | - | - | - |
Number of subpopulations | 1-3 | - | - | - |
Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: Much uncertainty. The estimate used here is the product of three AOO measures (spanning 3,600-7,200 km2) from Newman et al. (2021), the smallest being the number of 2x2 km squares for which there are records, the latter being an arbitrary doubling of this value to account for incomplete survey effort of potentially suitable habitat. The density estimate used of 45 birds/km2 (range 18-88 birds/km2) was estimated by expert consultation (G.B. Baker unpublished in Newman et al. 2021). The population size is therefore placed between 135,000 and 270,000 mature individuals, with a best estimate of 165,000 (following Newman et al. 2021) .
Trend justification: In the last decade, reporting rates from available systematically collected 2-ha 20-min surveys, 500-m radius and 5-km area searches (BirdLife Australia 2020) declined by 72% (500-m) and 51% (5-km) in north-western Tasmania; by 38% (500-m) at Pyengana in north-eastern Tasmania; and, in south-eastern Tasmania, by 96% (2-ha) at Meehan Range. The reporting rate on kunanyi/Mount Wellington declined by 89% between 1976–1978 and 2014–2016 (Newman 2017). Data for an array of 2-ha surveys sites on the Wellington Range were inconclusive over 2014–2019 (Newman et al. 2021). A composite trend for those sites with sufficient data indicated that the species has decreased by 51% over the last decade (2009–2019). Given that similar trends are apparent at widely dispersed locations, but that there is some inconsistency, it is concluded that the population as a whole has declined by 30%–49% in the last decade (Newman et al. 2021). Given the ongoing threats of habitat loss, fire and drought (Newman et al. 2021), declines are feared to continue over the next three generations.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Australia | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Australia | Ben Lomond |
Australia | Bruny Island |
Australia | Central Flinders Island |
Australia | Cradle Mountain |
Australia | Douglas-Apsley |
Australia | King Island |
Australia | Maria Island |
Australia | Melaleuca to Birchs Inlet |
Australia | North-west Tasmanian Coast |
Australia | Robbins Passage and Boullanger Bay |
Australia | South-east Tasmania |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Rural Gardens | suitable | resident |
Artificial/Terrestrial | Urban Areas | suitable | resident |
Forest | Temperate | major | resident |
Savanna | Dry | suitable | resident |
Shrubland | Temperate | suitable | resident |
Altitude | 0 - 1240 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 | ||||||
|
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Agriculture & aquaculture | Wood & pulp plantations - Agro-industry plantations | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Climate change & severe weather | Droughts | Timing | Scope | Severity | Impact | ||||
Ongoing | Whole (>90%) | Slow, Significant Declines | Medium Impact: 7 | ||||||
|
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Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
Ongoing | Unknown | Slow, Significant Declines | Unknown | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Strong-billed Honeyeater Melithreptus validirostris. Downloaded from
https://datazone.birdlife.org/species/factsheet/strong-billed-honeyeater-melithreptus-validirostris on 23/12/2024.
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 23/12/2024.