Range expansion, density and conservation of the Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) in Argentina: The role of araucaria Araucaria angustifolia (Araucariaceae) plantations

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The Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) is a globally Near Threatened species. Its habitat, the araucaria (Araucaria angustifolia) rainforest of south-east Brazil and north-east Argentina, is highly fragmented and reduced to nearly 10% of its original range. The species has a...

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Autores principales: Cabanne, Gustavo Sebastián, Zurita, Gustavo Andrés, Seipke, Sergio Hugo, Bellocq, María Isabel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Naturales
Leptasthenura setaria
conservation
Araucaria
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82961
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82961
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Leptasthenura setaria
conservation
Araucaria
spellingShingle Ciencias Naturales
Leptasthenura setaria
conservation
Araucaria
Cabanne, Gustavo Sebastián
Zurita, Gustavo Andrés
Seipke, Sergio Hugo
Bellocq, María Isabel
Range expansion, density and conservation of the Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) in Argentina: The role of araucaria Araucaria angustifolia (Araucariaceae) plantations
topic_facet Ciencias Naturales
Leptasthenura setaria
conservation
Araucaria
description The Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) is a globally Near Threatened species. Its habitat, the araucaria (Araucaria angustifolia) rainforest of south-east Brazil and north-east Argentina, is highly fragmented and reduced to nearly 10% of its original range. The species has also been recorded in commercial araucaria plantations that comprise about 80% of its suitable habitat in Argentina. This situation provides an opportunity for the conservation of the Araucaria Tit-spinetail in a human-modified landscape. We assessed the occurrence of the species in the region and estimated its density and total population size in araucaria plantations in Argentina. We discuss the value of plantations in the conservation of the bird, and evaluate its conservation status in Argentina using IUCN criteria. The density of the tit-spinetail in araucaria plantations, estimated by a distance sampling method, was 9 birds ha-1. The overall population size in commercial plantations appears to be large (>7,000 birds), showing that araucaria plantations play an important role in the conservation of the bird. However, plantations must not replace the native araucaria forest because the former are an intrinsically fragmented habitat influenced primarily by economic factors and forestry practices. The long-term conservation and restoration of araucaria rainforest in Argentina and Brazil must be guaranteed to conserve the Araucaria Tit-spinetail and other species associated with this rainforest. Based on the restricted and very fragmented habitat, the Araucaria Tit-spinetail should be regarded as Vulnerable in Argentina.
format Articulo
Articulo
author Cabanne, Gustavo Sebastián
Zurita, Gustavo Andrés
Seipke, Sergio Hugo
Bellocq, María Isabel
author_facet Cabanne, Gustavo Sebastián
Zurita, Gustavo Andrés
Seipke, Sergio Hugo
Bellocq, María Isabel
author_sort Cabanne, Gustavo Sebastián
title Range expansion, density and conservation of the Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) in Argentina: The role of araucaria Araucaria angustifolia (Araucariaceae) plantations
title_short Range expansion, density and conservation of the Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) in Argentina: The role of araucaria Araucaria angustifolia (Araucariaceae) plantations
title_full Range expansion, density and conservation of the Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) in Argentina: The role of araucaria Araucaria angustifolia (Araucariaceae) plantations
title_fullStr Range expansion, density and conservation of the Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) in Argentina: The role of araucaria Araucaria angustifolia (Araucariaceae) plantations
title_full_unstemmed Range expansion, density and conservation of the Araucaria Tit-spinetail Leptasthenura setaria (Furnariidae) in Argentina: The role of araucaria Araucaria angustifolia (Araucariaceae) plantations
title_sort range expansion, density and conservation of the araucaria tit-spinetail leptasthenura setaria (furnariidae) in argentina: the role of araucaria araucaria angustifolia (araucariaceae) plantations
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/82961
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