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CR
Carrizal Seedeater Amaurospiza carrizalensis

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable  

IUCN Red List history

Year Category
2013 Critically Endangered
2012 Critically Endangered
2010 Critically Endangered
2009 Critically Endangered
2008 Critically Endangered
2007 Critically Endangered
2006 Not Evaluated
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised

Species attributes

Migratory status not a migrant Forest dependency High
Land mass type   Average mass 13.3 g

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1 medium
Number of locations 1 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 1-49 poor Estimated 0
Population trend Decreasing poor -
Number of subpopulations 1 - - -
Largest subpopulation 1-50 - - -
Generation length (yrs) 3.8 - - -
Population justification: Although it has now been found at several localities since destruction of the type locality, the global population is nevertheless assumed to be tiny, with fewer than 50 individuals and mature individuals.
Trend justification: Habitat at the type locality, Isla Carrizal, was destroyed and then flooded during the Guri Dam development, and this development destroyed other potentially suitable habitat, therefore the species's population is suspected to be declining, although the likely rate of decline has not been estimated. However, a significant proportion of its habitat is pristine, far from roads and unlikely to be under any threat (M. Lentino in litt. 2010).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Venezuela Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Venezuela Caruachi site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major resident
Altitude 95 - 1600 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Natural system modifications Dams & water management/use / Dams (size unknown) Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Very Rapid Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2014) Species factsheet: Amaurospiza carrizalensis. Downloaded from http://www.birdlife.org on 22/12/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/12/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Critically Endangered
Family Cardinalidae (Grosbeaks, saltators and allies)
Species name author Lentino & Restall, 2003
Population size 1-49 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 1 km2
Country endemic? Yes
Links to further information
- Summary information on this species