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Grallaricula lineifrons 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_onStatus_vu_offStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Grallariidae

Scientific Name: Grallaricula lineifrons (Chapman, 1924)
Common Name(s):
English Crescent-faced Antpitta
Taxonomic Source(s): SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2017
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Butchart, S., Gilroy, J., Sharpe, C.J.
Justification:
This species has a small range and numbers are likely to be declining owing to habitat loss. However, the range is not yet severely fragmented or restricted to few locations. For these reasons, the species is classified as Near Threatened.

Previously published Red List assessments:

Geographic Range [top]

Range Description:Grallaricula lineifrons is known from few localities on the west slope of the Central Andes in south Colombia (east Cauca), and on the east slope of the Andes in Ecuador (west Napo, south-east Carchi, Cañar and north Loja) (Lehmann et al. 1977, Ridgely and Tudor 1994). It is considered rare to locally uncommon within this range, although its cryptic habits may disguise its true status (Ridgely and Tudor 1994).

Countries occurrence:
Native:
Colombia; Ecuador
Additional data:
Continuing decline in area of occupancy (AOO):Yes
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:20900
Continuing decline in extent of occurrence (EOO):YesExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:NoLower elevation limit (metres):2900
Upper elevation limit (metres):3400
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The global population size has not been quantified, but this species is described as 'fairly common but patchily distributed' (Stotz et al. 1996).

Trend Justification:  Data on trends are lacking, but declines are likely to be occurring, owing to on-going rapid habitat loss.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:UnknownContinuing decline of mature individuals:Yes
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No
No. of individuals in largest subpopulation:100

Habitat and Ecology [top]

Habitat and Ecology:It occurs in the undergrowth of epiphyte-clad montane evergreen forest, elfin forest and adjacent secondary woodland, on relatively steep slopes, at 2,900-3,400 m (Fjeldså and Krabbe 1990, Ridgely and Tudor 1994, Parker et al. 1996).

Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):2.9
Movement patterns:Not a Migrant

Threats [top]

Major Threat(s): Although apparently well protected at two sites (in east Cauca and north Loja) (Wege and Long 1995), widespread and severe deforestation of montane forest within its range has occurred owing to agricultural expansion, and further degradation is projected (Stattersfield et al. 1998). Lowering of the tree-line through cutting and burning for pasture is a major threat in Ecuador (del Hoyo et al. 2003). Some parts of its range are also threatened by burning and timber extraction for charcoal (Freile and Santander 2005).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
It occurs in Purace National Park, Colombia, and Cayambe-Coca Ecological Reserve, Ecuador.

Conservation Actions Proposed
Conduct surveys of suitable habitats within and surrounding the known range to determine its true distribution and abundance. Ensure that remaining tracts of suitable habitat receive adequate protection. Conduct studies to determine the level of tolerance of secondary habitats, particularly in areas where primary habitat is extirpated.

Amended [top]

Amended reason: Map revised.

Classifications [top]

1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability:Suitable season:resident major importance:Yes
1. Land/water protection -> 1.2. Resource & habitat protection

In-Place Research, Monitoring and Planning
  Action Recovery plan:No
  Systematic monitoring scheme:No
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
  Invasive species control or prevention:No
In-Place Species Management
  Successfully reintroduced or introduced beningly:No
  Subject to ex-situ conservation:No
In-Place Education
  Subject to recent education and awareness programmes:No
  Included in international legislation:No
  Subject to any international management/trade controls:No
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.2. Small-holder farming
♦ timing:Ongoing ♦ scope:Majority (50-90%) ♦ severity:Slow, Significant Declines  
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.2. Small-holder grazing, ranching or farming
♦ timing:Ongoing ♦ scope:Majority (50-90%) ♦ severity:Slow, Significant Declines  
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.3. Unintentional effects: (subsistence/small scale) [harvest]
♦ timing:Ongoing ♦ scope:Majority (50-90%) ♦ severity:Rapid Declines  
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.4. Unintentional effects: (large scale) [harvest]
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Rapid Declines  
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology

Bibliography [top]

del Hoyo, J., Elliott, A. and Christie, D. 2003. Handbook of the Birds of the World, Vol. 8: Broadbills to Tapaculos. Lynx Edicions, Barcelona, Spain.

Fjeldså, J. and Krabbe, N. 1990. Birds of the high Andes. Apollo Books, Copenhagen.

Freile J. F.; Santander T. 2005. Áreas Importantes para la Conservación de las Aves en Ecuador. In: BirdLife International, Conservation International (ed.), Áreas Importantes para la Conservación de las Aves en los Andes Tropicales: sitios prioritarios para la conservación de la biodiversidad, pp. 283-370. BirdLife International, Quita, Ecuador.

IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-3. Available at: www.iucnredlist.org. (Accessed: 07 December 2016).

IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-1. Available at: www.iucnredlist.org. (Accessed: 27 April 2017).

Lehmann, C.; Silliman, J. R.; Eisenmann, E. 1977. Rediscovery of the Crescent-faced Antpitta in Colombia. Condor 79: 387-388.

Parker, T.A., Stotz, D.F. and Fitzpatrick, J.W. 1996. Ecological and distributional databases. In: Stotz, D.F., Fitzpatrick, J.W., Parker, T.A. and Moskovits, D.K. (eds), Neotropical bird ecology and conservation, pp. 113-436. University of Chicago Press, Chicago.

Ridgely, R.S. and Tudor, G. 1994. The birds of South America. University of Texas Press, Austin, Texas.

Stattersfield, A.J., Crosby, M.J., Long, A.J. and Wege, D.C. 1998. Endemic bird areas of the world: priorities for bird conservation. BirdLife International, Cambridge, U.K.

Stotz, D.F., Fitzpatrick, J.W., Parker, T.A. and Moskovits, D.K. 1996. Neotropical Birds: Ecology and Conservation. University of Chicago Press, Chicago.

Wege, D.C. and Long, A.J. 1995. Key Areas for threatened birds in the Neotropics. BirdLife International, Cambridge, U.K.


Citation: BirdLife International. 2017. Grallaricula lineifrons (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T22703389A110976028. . Downloaded on 17 July 2018.
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