Sporophila hypochroma

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AVES	PASSERIFORMES	EMBERIZIDAE

Scientific Name:

Sporophila hypochroma

Species Authority:

Todd, 1915

Common Name/s:

English

–

Grey-and-chestnut Seedeater, Rufous-rumped Seedeater

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2012

Assessor/s:

BirdLife International

Reviewer/s:

Butchart, S. & Symes, A.

Contributor/s:

Clay, R.

Justification:
This species is considered Near Threatened as it is thought to be experiencing a moderately rapid population decline owing to the degradation of grassland habitats, conversion to agriculture and exploitation for the wild cagetrade (Collar et al. 1992).

History:

2008	–	Near Threatened
2004	–	Near Threatened

Geographic Range [top]

Range Description:	Sporophila hypochroma has an apparently disjunct range in north and east Bolivia (Beni, La Paz and Santa Cruz), south-west Brazil (Mato Grosso do Sul and Goiás), north-east Argentina (Buenos Aires, Chaco, Corrientes, Entre Ríos and Formosa), Paraguay (throughout the east and south-east, and Presidente Hayes in Chaco) (Ridgely and Tudor 1989, Pearman and Abadie 1995, Armonía 1995, Chebez et al. 1998) and Uruguay (in Paysandu and Artigas) (Ridgely and Tudor 1989). Breeding has been proven in Argentina, Bolivia and Paraguay (Pearman and Abadie 1995, Hayes 1995, Lowen et al. 1996, R. P. Clay in litt. 2000). Southern breeding populations migrate north to winter in Brazil (Ridgely and Tudor 1989, R. P. Clay in litt. 2000) and possibly in Concepcíon, Paraguay (R. P. Clay in litt. 2000). Populations in Bolivia are apparently sedentary, but there are no data from late autumn and early winter (Di Giácomo and Contreras 1998).
Countries:	Native: Argentina; Bolivia, Plurinational States of; Brazil; Paraguay; Uruguay
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:	It has been reported near marshes, seasonally flooded grasslands, pastures and savanna-like areas to 1,100 m, but breeding appears restricted to low, seasonally wet grasslands (Pearman and Abadie 1995).
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Widespread destruction and modification of grasslands in central South America for mechanised agriculture, intensive cattle-grazing and afforestation with non-native tree genera, and pressure from trappers suggest that the species is declining rapidly. However, it has been claimed that Argentine populations are expanding in range and number (Pearman and Abadie 1995), but this may be an artifact of improved observer awareness and knowledge.

Major Threat(s):

Widespread destruction and modification of grasslands in central South America for mechanised agriculture, intensive cattle-grazing and afforestation with non-native tree genera, and pressure from trappers suggest that the species is declining rapidly. However, it has been claimed that Argentine populations are expanding in range and number (Pearman and Abadie 1995), but this may be an artifact of improved observer awareness and knowledge.

Conservation Actions [top]

Conservation Actions:	Conservation Actions Underway CMS Appendix I. Conservation Actions Proposed Monitor populations at known sites to determine trends, as well as numbers appearing in the wild bird trade. Campaign for the protection of key native grasslands across the range.

Conservation Actions:

Conservation Actions Underway
CMS Appendix I.

Conservation Actions Proposed
Monitor populations at known sites to determine trends, as well as numbers appearing in the wild bird trade. Campaign for the protection of key native grasslands across the range.

Citation:	BirdLife International 2012. Sporophila hypochroma. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.
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