A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment

Autores
Puechagut, Patricia Beatriz; Politi, Natalia; Bellis, Laura Marisa; Rivera, Luis Osvaldo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Palm forests of Copernicia alba are a rare habitat in the semi-arid Chaco of Northwestern Argentina, are centres of high species diversity, and provide key resources for many species. Our goal was to assess the conservation status of five C. alba patches in Northwestern Argentina: Reserve; Embarcación; Palma Sola; Vinalito; and, Talar. We compared patches to identify the sites with greatest conservation needs based on four criteria: population size structure; palm density (of individuals with height >1.30. m); probability of seedlings being browsed; and, presence of potential seed dispersers. We found that three (Embarcación, Reserve, and Talar) out of five sites had palm densities greater than 200 individuals/ha and only one site (Embarcación) showed a reverse J-shaped size structure for height. Reserve and Embarcación had the greatest probability of seedlings being browsed (0.99 ± 0.01 and 0.88 ± 0.12, respectively). A total of 14 potential disperser species of mammals and birds were recorded across the five sites. Only Reserve harboured all of the potential dispersers, but at least two potential disperser species were recorded at the other sites. None of the palm patches studied had an adequate conservation status. However, Embarcación met three out of four criteria, and therefore it can be considered to have the best conservation status in the semi-arid Chaco. Palma Sola and Vinalito have the greatest conservation needs. To conserve C. alba in Northwestern Argentina, strategies are needed that ensure seedling establishment for future populations to reach an adequate density and structure.
Fil: Puechagut, Patricia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; Argentina
Fil: Politi, Natalia. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bellis, Laura Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cordoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Biologia. Cat.de Ecologia General; Argentina
Fil: Rivera, Luis Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; Argentina
Materia
BROWSING
COPERNICIA ALBA
FAUNA
LIVESTOCK
NORTHWESTERN ARGENTINA
PALMS
SEED DISPERSAL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/189181
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/189181
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishmentPuechagut, Patricia BeatrizPoliti, NataliaBellis, Laura MarisaRivera, Luis OsvaldoBROWSINGCOPERNICIA ALBAFAUNALIVESTOCKNORTHWESTERN ARGENTINAPALMSSEED DISPERSALhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Palm forests of Copernicia alba are a rare habitat in the semi-arid Chaco of Northwestern Argentina, are centres of high species diversity, and provide key resources for many species. Our goal was to assess the conservation status of five C. alba patches in Northwestern Argentina: Reserve; Embarcación; Palma Sola; Vinalito; and, Talar. We compared patches to identify the sites with greatest conservation needs based on four criteria: population size structure; palm density (of individuals with height >1.30. m); probability of seedlings being browsed; and, presence of potential seed dispersers. We found that three (Embarcación, Reserve, and Talar) out of five sites had palm densities greater than 200 individuals/ha and only one site (Embarcación) showed a reverse J-shaped size structure for height. Reserve and Embarcación had the greatest probability of seedlings being browsed (0.99 ± 0.01 and 0.88 ± 0.12, respectively). A total of 14 potential disperser species of mammals and birds were recorded across the five sites. Only Reserve harboured all of the potential dispersers, but at least two potential disperser species were recorded at the other sites. None of the palm patches studied had an adequate conservation status. However, Embarcación met three out of four criteria, and therefore it can be considered to have the best conservation status in the semi-arid Chaco. Palma Sola and Vinalito have the greatest conservation needs. To conserve C. alba in Northwestern Argentina, strategies are needed that ensure seedling establishment for future populations to reach an adequate density and structure.Fil: Puechagut, Patricia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; ArgentinaFil: Politi, Natalia. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bellis, Laura Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cordoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Biologia. Cat.de Ecologia General; ArgentinaFil: Rivera, Luis Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; ArgentinaElsevier Gmbh2012-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/189181Puechagut, Patricia Beatriz; Politi, Natalia; Bellis, Laura Marisa; Rivera, Luis Osvaldo; A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment; Elsevier Gmbh; Journal for Nature Conservation; 21; 1; 9-2012; 31-361617-1381CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnc.2012.09.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:46:54Zoai:ri.conicet.gov.ar:11336/189181instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:46:54.951CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
title A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
spellingShingle A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
Puechagut, Patricia Beatriz
BROWSING
COPERNICIA ALBA
FAUNA
LIVESTOCK
NORTHWESTERN ARGENTINA
PALMS
SEED DISPERSAL
title_short A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
title_full A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
title_fullStr A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
title_full_unstemmed A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
title_sort A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment
dc.creator.none.fl_str_mv Puechagut, Patricia Beatriz
Politi, Natalia
Bellis, Laura Marisa
Rivera, Luis Osvaldo
author Puechagut, Patricia Beatriz
author_facet Puechagut, Patricia Beatriz
Politi, Natalia
Bellis, Laura Marisa
Rivera, Luis Osvaldo
author_role author
author2 Politi, Natalia
Bellis, Laura Marisa
Rivera, Luis Osvaldo
author2_role author
author
author
dc.subject.none.fl_str_mv BROWSING
COPERNICIA ALBA
FAUNA
LIVESTOCK
NORTHWESTERN ARGENTINA
PALMS
SEED DISPERSAL
topic BROWSING
COPERNICIA ALBA
FAUNA
LIVESTOCK
NORTHWESTERN ARGENTINA
PALMS
SEED DISPERSAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Palm forests of Copernicia alba are a rare habitat in the semi-arid Chaco of Northwestern Argentina, are centres of high species diversity, and provide key resources for many species. Our goal was to assess the conservation status of five C. alba patches in Northwestern Argentina: Reserve; Embarcación; Palma Sola; Vinalito; and, Talar. We compared patches to identify the sites with greatest conservation needs based on four criteria: population size structure; palm density (of individuals with height >1.30. m); probability of seedlings being browsed; and, presence of potential seed dispersers. We found that three (Embarcación, Reserve, and Talar) out of five sites had palm densities greater than 200 individuals/ha and only one site (Embarcación) showed a reverse J-shaped size structure for height. Reserve and Embarcación had the greatest probability of seedlings being browsed (0.99 ± 0.01 and 0.88 ± 0.12, respectively). A total of 14 potential disperser species of mammals and birds were recorded across the five sites. Only Reserve harboured all of the potential dispersers, but at least two potential disperser species were recorded at the other sites. None of the palm patches studied had an adequate conservation status. However, Embarcación met three out of four criteria, and therefore it can be considered to have the best conservation status in the semi-arid Chaco. Palma Sola and Vinalito have the greatest conservation needs. To conserve C. alba in Northwestern Argentina, strategies are needed that ensure seedling establishment for future populations to reach an adequate density and structure.
Fil: Puechagut, Patricia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; Argentina
Fil: Politi, Natalia. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bellis, Laura Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cordoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Biologia. Cat.de Ecologia General; Argentina
Fil: Rivera, Luis Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Cátedra de Desarrollo Sustentable y Biodiversidad; Argentina
description Palm forests of Copernicia alba are a rare habitat in the semi-arid Chaco of Northwestern Argentina, are centres of high species diversity, and provide key resources for many species. Our goal was to assess the conservation status of five C. alba patches in Northwestern Argentina: Reserve; Embarcación; Palma Sola; Vinalito; and, Talar. We compared patches to identify the sites with greatest conservation needs based on four criteria: population size structure; palm density (of individuals with height >1.30. m); probability of seedlings being browsed; and, presence of potential seed dispersers. We found that three (Embarcación, Reserve, and Talar) out of five sites had palm densities greater than 200 individuals/ha and only one site (Embarcación) showed a reverse J-shaped size structure for height. Reserve and Embarcación had the greatest probability of seedlings being browsed (0.99 ± 0.01 and 0.88 ± 0.12, respectively). A total of 14 potential disperser species of mammals and birds were recorded across the five sites. Only Reserve harboured all of the potential dispersers, but at least two potential disperser species were recorded at the other sites. None of the palm patches studied had an adequate conservation status. However, Embarcación met three out of four criteria, and therefore it can be considered to have the best conservation status in the semi-arid Chaco. Palma Sola and Vinalito have the greatest conservation needs. To conserve C. alba in Northwestern Argentina, strategies are needed that ensure seedling establishment for future populations to reach an adequate density and structure.
publishDate 2012
dc.date.none.fl_str_mv 2012-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/189181
Puechagut, Patricia Beatriz; Politi, Natalia; Bellis, Laura Marisa; Rivera, Luis Osvaldo; A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment; Elsevier Gmbh; Journal for Nature Conservation; 21; 1; 9-2012; 31-36
1617-1381
CONICET Digital
CONICET
url http://hdl.handle.net/11336/189181
identifier_str_mv Puechagut, Patricia Beatriz; Politi, Natalia; Bellis, Laura Marisa; Rivera, Luis Osvaldo; A disappearing oasis in the semi-arid Chaco: Deficient palm regeneration and establishment; Elsevier Gmbh; Journal for Nature Conservation; 21; 1; 9-2012; 31-36
1617-1381
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnc.2012.09.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Gmbh
publisher.none.fl_str_mv Elsevier Gmbh
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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