Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina

Autores
Frate, Ludovico; Acosta, Alicia T. R.; Cabido, Marcelo Ruben; Hoyos, Laura Emilia; Carranza, Maria Laura
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The context in which a forest exists strongly influences its function and sustainability. Unveiling the multi-scale nature of forest fragmentation context is crucial to understand how human activities affect the spatial patterns of forests across a range of scales. However, this issue remains almost unexplored in subtropical ecosystems. In this study, we analyzed temporal changes (1979-2010) in forest contexts in the Argentinean dry Chaco at multiple extents. We classified forests over the last three decades based on forest context amount (Pf) and structural connectivity (Pff), which were measured using a moving window approach fixed at eight different extents (from local, ∼ 6 ha, to regional, ∼ 8300 ha). Specific multi-scale forest context profiles (for the years 1979 and 2010) were defined by projecting Pf vs. Pff mean values and were compared across spatial extents. The distributions of Pf across scales were described by scalograms and their shapes over time were compared. The amount of agricultural land and rangelands across the scales were also analyzed. The dry Chaco has undergone an intensive process of fragmentation, resulting in a shift from landscapes dominated by forests with gaps of rangelands to landscapes where small forest patches are embedded in agricultural lands. Multi-scale fragmentation analysis depicted landscapes in which local exploitation, which perforates forest cover, occurs alongside extensive forest clearings, reducing forests to small and isolated patches surrounded by agricultural lands. In addition, the temporal diminution of Pf's variability along with the increment of the mean slope of the Pf's scalograms, indicate a simplification of the spatial pattern of forest over time. The observed changes have most likely been the result of the interplay between human activities and environmental constraints, which have shaped the spatial patterns of forests across scales. Based on our results, strategies for the conservation and sustainable management of the dry Chaco should take into account both the context of each habitat location and the scales over which a forest pattern might be preserved, altered or restored.
Fil: Frate, Ludovico. Università degli Studi del Molise; Italia
Fil: Acosta, Alicia T. R.. Università degli Studi di Roma Tre; Italia
Fil: Cabido, Marcelo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Hoyos, Laura Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Carranza, Maria Laura. Università degli Studi del Molise; Italia
Materia
FRAGMENTATION
GRAN CHACO
SCALES
FOREST LOSS
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:11336/54607

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spelling Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central ArgentinaFrate, LudovicoAcosta, Alicia T. R.Cabido, Marcelo RubenHoyos, Laura EmiliaCarranza, Maria LauraFRAGMENTATIONGRAN CHACOSCALESFOREST LOSShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The context in which a forest exists strongly influences its function and sustainability. Unveiling the multi-scale nature of forest fragmentation context is crucial to understand how human activities affect the spatial patterns of forests across a range of scales. However, this issue remains almost unexplored in subtropical ecosystems. In this study, we analyzed temporal changes (1979-2010) in forest contexts in the Argentinean dry Chaco at multiple extents. We classified forests over the last three decades based on forest context amount (Pf) and structural connectivity (Pff), which were measured using a moving window approach fixed at eight different extents (from local, ∼ 6 ha, to regional, ∼ 8300 ha). Specific multi-scale forest context profiles (for the years 1979 and 2010) were defined by projecting Pf vs. Pff mean values and were compared across spatial extents. The distributions of Pf across scales were described by scalograms and their shapes over time were compared. The amount of agricultural land and rangelands across the scales were also analyzed. The dry Chaco has undergone an intensive process of fragmentation, resulting in a shift from landscapes dominated by forests with gaps of rangelands to landscapes where small forest patches are embedded in agricultural lands. Multi-scale fragmentation analysis depicted landscapes in which local exploitation, which perforates forest cover, occurs alongside extensive forest clearings, reducing forests to small and isolated patches surrounded by agricultural lands. In addition, the temporal diminution of Pf's variability along with the increment of the mean slope of the Pf's scalograms, indicate a simplification of the spatial pattern of forest over time. The observed changes have most likely been the result of the interplay between human activities and environmental constraints, which have shaped the spatial patterns of forests across scales. Based on our results, strategies for the conservation and sustainable management of the dry Chaco should take into account both the context of each habitat location and the scales over which a forest pattern might be preserved, altered or restored.Fil: Frate, Ludovico. Università degli Studi del Molise; ItaliaFil: Acosta, Alicia T. R.. Università degli Studi di Roma Tre; ItaliaFil: Cabido, Marcelo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Hoyos, Laura Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Carranza, Maria Laura. Università degli Studi del Molise; ItaliaPublic Library of Science2015-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54607Frate, Ludovico; Acosta, Alicia T. R.; Cabido, Marcelo Ruben; Hoyos, Laura Emilia; Carranza, Maria Laura; Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina; Public Library of Science; Plos One; 10; 12; 12-20151932-6203CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0142855info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0142855info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:54:40Zoai:ri.conicet.gov.ar:11336/54607instacron: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:34982025-09-29 09:54:40.63CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
title Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
spellingShingle Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
Frate, Ludovico
FRAGMENTATION
GRAN CHACO
SCALES
FOREST LOSS
title_short Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
title_full Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
title_fullStr Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
title_full_unstemmed Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
title_sort Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina
dc.creator.none.fl_str_mv Frate, Ludovico
Acosta, Alicia T. R.
Cabido, Marcelo Ruben
Hoyos, Laura Emilia
Carranza, Maria Laura
author Frate, Ludovico
author_facet Frate, Ludovico
Acosta, Alicia T. R.
Cabido, Marcelo Ruben
Hoyos, Laura Emilia
Carranza, Maria Laura
author_role author
author2 Acosta, Alicia T. R.
Cabido, Marcelo Ruben
Hoyos, Laura Emilia
Carranza, Maria Laura
author2_role author
author
author
author
dc.subject.none.fl_str_mv FRAGMENTATION
GRAN CHACO
SCALES
FOREST LOSS
topic FRAGMENTATION
GRAN CHACO
SCALES
FOREST LOSS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The context in which a forest exists strongly influences its function and sustainability. Unveiling the multi-scale nature of forest fragmentation context is crucial to understand how human activities affect the spatial patterns of forests across a range of scales. However, this issue remains almost unexplored in subtropical ecosystems. In this study, we analyzed temporal changes (1979-2010) in forest contexts in the Argentinean dry Chaco at multiple extents. We classified forests over the last three decades based on forest context amount (Pf) and structural connectivity (Pff), which were measured using a moving window approach fixed at eight different extents (from local, ∼ 6 ha, to regional, ∼ 8300 ha). Specific multi-scale forest context profiles (for the years 1979 and 2010) were defined by projecting Pf vs. Pff mean values and were compared across spatial extents. The distributions of Pf across scales were described by scalograms and their shapes over time were compared. The amount of agricultural land and rangelands across the scales were also analyzed. The dry Chaco has undergone an intensive process of fragmentation, resulting in a shift from landscapes dominated by forests with gaps of rangelands to landscapes where small forest patches are embedded in agricultural lands. Multi-scale fragmentation analysis depicted landscapes in which local exploitation, which perforates forest cover, occurs alongside extensive forest clearings, reducing forests to small and isolated patches surrounded by agricultural lands. In addition, the temporal diminution of Pf's variability along with the increment of the mean slope of the Pf's scalograms, indicate a simplification of the spatial pattern of forest over time. The observed changes have most likely been the result of the interplay between human activities and environmental constraints, which have shaped the spatial patterns of forests across scales. Based on our results, strategies for the conservation and sustainable management of the dry Chaco should take into account both the context of each habitat location and the scales over which a forest pattern might be preserved, altered or restored.
Fil: Frate, Ludovico. Università degli Studi del Molise; Italia
Fil: Acosta, Alicia T. R.. Università degli Studi di Roma Tre; Italia
Fil: Cabido, Marcelo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Hoyos, Laura Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Carranza, Maria Laura. Università degli Studi del Molise; Italia
description The context in which a forest exists strongly influences its function and sustainability. Unveiling the multi-scale nature of forest fragmentation context is crucial to understand how human activities affect the spatial patterns of forests across a range of scales. However, this issue remains almost unexplored in subtropical ecosystems. In this study, we analyzed temporal changes (1979-2010) in forest contexts in the Argentinean dry Chaco at multiple extents. We classified forests over the last three decades based on forest context amount (Pf) and structural connectivity (Pff), which were measured using a moving window approach fixed at eight different extents (from local, ∼ 6 ha, to regional, ∼ 8300 ha). Specific multi-scale forest context profiles (for the years 1979 and 2010) were defined by projecting Pf vs. Pff mean values and were compared across spatial extents. The distributions of Pf across scales were described by scalograms and their shapes over time were compared. The amount of agricultural land and rangelands across the scales were also analyzed. The dry Chaco has undergone an intensive process of fragmentation, resulting in a shift from landscapes dominated by forests with gaps of rangelands to landscapes where small forest patches are embedded in agricultural lands. Multi-scale fragmentation analysis depicted landscapes in which local exploitation, which perforates forest cover, occurs alongside extensive forest clearings, reducing forests to small and isolated patches surrounded by agricultural lands. In addition, the temporal diminution of Pf's variability along with the increment of the mean slope of the Pf's scalograms, indicate a simplification of the spatial pattern of forest over time. The observed changes have most likely been the result of the interplay between human activities and environmental constraints, which have shaped the spatial patterns of forests across scales. Based on our results, strategies for the conservation and sustainable management of the dry Chaco should take into account both the context of each habitat location and the scales over which a forest pattern might be preserved, altered or restored.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/54607
Frate, Ludovico; Acosta, Alicia T. R.; Cabido, Marcelo Ruben; Hoyos, Laura Emilia; Carranza, Maria Laura; Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina; Public Library of Science; Plos One; 10; 12; 12-2015
1932-6203
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54607
identifier_str_mv Frate, Ludovico; Acosta, Alicia T. R.; Cabido, Marcelo Ruben; Hoyos, Laura Emilia; Carranza, Maria Laura; Temporal changes in forest contexts at multiple extents: Three decades of fragmentation in the Gran Chaco (1979-2010), Central Argentina; Public Library of Science; Plos One; 10; 12; 12-2015
1932-6203
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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