Data Zone
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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | A3bcd |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Vulnerable | A3bcd |
| 2012 | Vulnerable | A3cd |
| 2008 | Vulnerable | A3c,d |
| 2004 | Vulnerable | |
| 2000 | Vulnerable | |
| 1996 | Vulnerable | |
| 1994 | Vulnerable | |
| 1988 | Threatened |
| Migratory status | not a migrant | Forest dependency | high |
| Land mass type |
land-mass type - shelf island |
Average mass | 185 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 203,000 | medium |
| Number of locations | 11-100 | - |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 7800-19600 | poor | estimated | 1999 |
| Population trend | decreasing | medium | 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) | - | - | - | |
| Number of subpopulations | 2-100 | - | - | - |
| Percentage in largest subpopulation | 1-89 | - | - | - |
| Generation length (yrs) | 5.6 | - | - | - |
Population justification: The species can be easily overlooked and a study on Masoala peninsula estimated a density of 4 territories per km2, which would have equated to a maximum of approximately 8,800 pairs in the peninsula alone (Thorstrom and Lind 1999). Assuming a conservative measure of 10-25% occupancy of the EOO this would give a total of 3,900-9,800 pairs. This equates to 7,800-19,600 mature individuals.
Trend justification: Modelling the possible effects of climate change have shown that this species's ecological niche may decline by as much as 62% due to climate change over the 50 year period from 2000 to 2050 (Andriamasimanana and Cameron 2013). Assuming a linear decrease, this would equate to a c.26% decline in its ecological niche over its next 3 generations due to climate change alone. Further to this the population is suspected to be declining in line with habitat loss and degradation, and hunting pressure. If present trends continue, the remaining unprotected forest, especially at the lower altitudes preferred by this species, will disappear within decades (Stattersfield et al. 1998). Thus declines of this species within the next 3 generations may be within the 30-49% range.
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Madagascar | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Madagascar | Ambatovaky Special Reserve |
| Madagascar | Andohahela National Park - Section I |
| Madagascar | Andringitra National Park |
| Madagascar | Anjanaharibe Classified Forest |
| Madagascar | Anjozorobe Forest |
| Madagascar | Ankeniheny Classified Forest |
| Madagascar | Betampona Strict Nature Reserve |
| Madagascar | Bezavona Classified Forest |
| Madagascar | Daraina Forest |
| Madagascar | Mananara-North Biosphere Reserve |
| Madagascar | Mangerivola Special Reserve |
| Madagascar | Mantadia National Park and Analamazaotra Special Reserve |
| Madagascar | Marojejy National Park |
| Madagascar | Masoala National Park |
| Madagascar | Midongy South National Park |
| Madagascar | Onive Classified Forest |
| Madagascar | Ranomafana National Park and extension |
| Madagascar | Sihanaka Forest |
| Madagascar | South Anjanaharibe Special Reserve and extension |
| Madagascar | Tsaratanana Strict Nature Reserve and extension |
| Madagascar | Upper Rantabe Classified Forest |
| Madagascar | Vondrozo Classified Forest NPA |
| Madagascar | Zahamena National Park and Strict Reserve |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Altitude | 0 - 1200 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Climate change & severe weather | Habitat shifting & alteration | Timing | Scope | Severity | Impact | ||||
| Future | Whole (>90%) | Rapid Declines | Medium Impact: 6 | ||||||
|
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Recommended citation
BirdLife International (2023) Species factsheet: Brachypteracias leptosomus. Downloaded from
http://datazone.birdlife.org/species/factsheet/short-legged-ground-roller-brachypteracias-leptosomus on 03/06/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 03/06/2023.
