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Porphyrospiza caerulescens

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES PASSERIFORMES EMBERIZIDAE

Scientific Name: Porphyrospiza caerulescens
Species Authority: (Wied, 1830)
Common Name(s):
English Blue Finch, Yellow-billed Blue Finch
Synonym(s):
Passerina caerulescens caerulescens BirdLife International (2004)
Passerina caerulescens caerulescens Stotz et al. (1996)

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Butchart, S., Gilroy, J., Sharpe, C J
Justification:
This species is listed as Near Threatened, as it has become rare and local in many formerly occupied areas, and is likely to be declining moderately rapidly owing to the conversion of its cerrado habitats for agriculture.

Geographic Range [top]

Range Description: Porphyrospiza caerulescens occurs in the interior of north-east and central Brazil (from south-east Pará and south Maranhão to Piauí, west Bahia, Tocantins, Goiás, Districto Federal, west and central Minas Gerais and south Mato Grosso), and east Bolivia (Beni, Santa Cruz and possibly Chuquisaca) (Ridgely and Tudor 1989, Sick 1993, Armonía 1995). It is uncommon, patchily distributed and apparently declining. It has become very rare and local in Brazil but is apparently more numerous in Bolivia, where 5,000 individuals were estimated at Cerro San Simón, west Beni, in 1990 (Parker and Rocha 1991).

Countries:
Native:
Bolivia, Plurinational States of; Brazil
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 'uncommon and patchily distributed' (Stotz et al. 1996).
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This species occurs at 600-1,100 m in campo cerrado, and particularly campo rupestre (Parker and Rocha 1991, da Silva 1995, Parker et al. 1996).

Systems: Terrestrial

Threats [top]

Major Threat(s): Conversion to agriculture for Eucalyptus plantations, soybeans and pasture for exportable crops (encouraged by government land reform) have severely impacted its habitat, particularly in Brazil (Parker and Willis 1997). Two thirds of cerrado habitat had been extensively or significantly modified by 1993 (Conservation International 1999), with most destruction having occurred since 1950 (Cavalcanti 1999).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
Conservation Actions Proposed

Repeat surveys of occupied areas to determine population trends and rates of range contraction. Conduct ecological studies to identify precise habitat requirements and elucidate causes of declines. Effectively protect large areas of suitable habitat.


Citation: BirdLife International 2012. Porphyrospiza caerulescens. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 17 September 2014.
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