Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina

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We compared several attributes of vegetation structure of the understory and of bird species richness, guild abundance, and total abundance between a 200-ha area of semiarid Chacoan forest and another 200-ha area of the same forest where shrubs were manually removed, in Santiago del Estero province,...

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Autores principales: Codesido, Mariano, Bilenca, David Norberto
Publicado: 2009
Materias:
Argentina
Bird assemblage
Chaco
Guilds
Manual shrub removal
Subtropical forest
Vegetation structure
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n1_p47_Codesido
http://hdl.handle.net/20.500.12110/paper_10754377_v20_n1_p47_Codesido
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10754377_v20_n1_p47_Codesido
record_format dspace
spelling paper:paper_10754377_v20_n1_p47_Codesido2023-06-08T16:05:15Z Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina Codesido, Mariano Bilenca, David Norberto Argentina Bird assemblage Chaco Guilds Manual shrub removal Subtropical forest Vegetation structure We compared several attributes of vegetation structure of the understory and of bird species richness, guild abundance, and total abundance between a 200-ha area of semiarid Chacoan forest and another 200-ha area of the same forest where shrubs were manually removed, in Santiago del Estero province, Argentina. We seasonally recorded birds at 60 point count stations (30 in each type of habitat) between March 1998 and August 1999. The shrubless area showed higher percentages of herb cover and bare ground than the forest, whereas in the forest there were higher covers of litter and shrubs and a higher shrub height than in the shrubless area. Moreover, the shrubless area showed a lower species richness and bird abundance than the forest in summer. At the guild level, analyses revealed that bark insectivores were more abundant in the shrubless area, whereas foliage insectivores, terrestrial insectivores, and arboreal seed eaters were more abundant in the forest. Our results show that shrub removal has a great influence on the structure of bird assemblages, which persists several years later after the application of this technique. We recommend that, in case of massive shrub removal, stripes of shrubby vegetation should be maintained in order to guarantee the inclusion of shrub-associated bird species in the mosaic landscape. © The Neotropical Ornithological Society. Fil:Codesido, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilenca, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n1_p47_Codesido http://hdl.handle.net/20.500.12110/paper_10754377_v20_n1_p47_Codesido
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Bird assemblage
Chaco
Guilds
Manual shrub removal
Subtropical forest
Vegetation structure
spellingShingle Argentina
Bird assemblage
Chaco
Guilds
Manual shrub removal
Subtropical forest
Vegetation structure
Codesido, Mariano
Bilenca, David Norberto
Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina
topic_facet Argentina
Bird assemblage
Chaco
Guilds
Manual shrub removal
Subtropical forest
Vegetation structure
description We compared several attributes of vegetation structure of the understory and of bird species richness, guild abundance, and total abundance between a 200-ha area of semiarid Chacoan forest and another 200-ha area of the same forest where shrubs were manually removed, in Santiago del Estero province, Argentina. We seasonally recorded birds at 60 point count stations (30 in each type of habitat) between March 1998 and August 1999. The shrubless area showed higher percentages of herb cover and bare ground than the forest, whereas in the forest there were higher covers of litter and shrubs and a higher shrub height than in the shrubless area. Moreover, the shrubless area showed a lower species richness and bird abundance than the forest in summer. At the guild level, analyses revealed that bark insectivores were more abundant in the shrubless area, whereas foliage insectivores, terrestrial insectivores, and arboreal seed eaters were more abundant in the forest. Our results show that shrub removal has a great influence on the structure of bird assemblages, which persists several years later after the application of this technique. We recommend that, in case of massive shrub removal, stripes of shrubby vegetation should be maintained in order to guarantee the inclusion of shrub-associated bird species in the mosaic landscape. © The Neotropical Ornithological Society.
author Codesido, Mariano
Bilenca, David Norberto
author_facet Codesido, Mariano
Bilenca, David Norberto
author_sort Codesido, Mariano
title Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina
title_short Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina
title_full Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina
title_fullStr Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina
title_full_unstemmed Responses of a bird assemblage to manual shrub removal in a Chacoan subtropical semiarid forest, Argentina
title_sort responses of a bird assemblage to manual shrub removal in a chacoan subtropical semiarid forest, argentina
publishDate 2009
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10754377_v20_n1_p47_Codesido
http://hdl.handle.net/20.500.12110/paper_10754377_v20_n1_p47_Codesido
work_keys_str_mv AT codesidomariano responsesofabirdassemblagetomanualshrubremovalinachacoansubtropicalsemiaridforestargentina
AT bilencadavidnorberto responsesofabirdassemblagetomanualshrubremovalinachacoansubtropicalsemiaridforestargentina
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