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dc.contributor.author
Carranza, María Laura
dc.contributor.author
Hoyos, Laura Emilia
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Frate, Ludovico
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Acosta, Alicia T. R.
dc.contributor.author
Cabido, Marcelo Ruben
dc.date.available
2017-02-06T22:04:40Z
dc.date.issued
2015-08
dc.identifier.citation
Carranza, María Laura; Hoyos, Laura Emilia; Frate, Ludovico; Acosta, Alicia T. R.; Cabido, Marcelo Ruben; Measuring forest fragmentation using multitemporal forest cover maps: Forest loss and spatial pattern analysis in the Gran Chaco, central Argentina; Elsevier Science; Landscape And Urban Planning; 143; 8-2015; 238-247
dc.identifier.issn
0169-2046
dc.identifier.uri
http://hdl.handle.net/11336/12603
dc.description.abstract
Forest fragmentation is a landscape-level process that consists of two interdependent components: forestloss and spatial pattern changes to which species respond differently. Efficient programs to conservenative biodiversity require a sound understanding of the relation between forest cover and the spatialpattern of forest fragments, but these issues remain almost unknown for subtropical ecosystems.We examine the forest fragmentation of the Gran Chaco in central Argentina over the last 30 years. Inparticular, we quantify forest loss and spatial pattern changes using random sampling techniques onmulti-temporal forest cover maps (1979, 1999 and 2010). We analyzed forest fragmentation accordingto the following steps: (i) selection of fragmentation pattern indices (PIs), (ii) sampling on forest covermaps and PIs calculation, (iii) statistical comparison by bootstrapping, and (iv) trajectory analysis. Duringthe last three decades, forest cover declined dramatically (∼90%) and the selected pattern metrics (MPS,PD, ED) varied significantly (p < 0.05). The results depict a devastating situation of Gran Chaco forestswith a progressive reduction to few small fragments during the last decades. Furthermore when forestloss exceeded the∼50% of the total land area, the temporal trajectories of the selected PIs underwentan abrupt change. Distinguishing habitat spatial pattern changes from forest loss over time supports theidentification of specific conservation actions and provide the basis to establish the lower threshold offorest cover and the more effective arrangement of fragments necessary to mitigate the fragmentationeffects.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Subtropical Dry Forests
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Pattern Indices
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Sampling
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Relationship Space
dc.subject.classification
Conservación de la Biodiversidad
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Measuring forest fragmentation using multitemporal forest cover maps: Forest loss and spatial pattern analysis in the Gran Chaco, central Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-01-31T15:37:18Z
dc.journal.volume
143
dc.journal.pagination
238-247
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Carranza, María Laura. Università degli Studi del Molise; Italia
dc.description.fil
Fil: Hoyos, Laura Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
dc.description.fil
Fil: Frate, Ludovico. Università degli Studi del Molise; Italia. Istituto di Biologia Agro-Ambientale e Forestal; Italia
dc.description.fil
Fil: Acosta, Alicia T. R.. Università degli Studi di Roma; Italia
dc.description.fil
Fil: Cabido, Marcelo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
dc.journal.title
Landscape And Urban Planning
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.landurbplan.2015.08.006
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169204615001619
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