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Abstract
The Gran Chaco is a wide ecologic-geographic region comprising northern Argentina, western Paraguay, southern Bolivia and the southwestern extreme of Brazil. This region exhibits extreme temperatures, annually regular frosts, and sedimentary soils; it has been dramatically threatened by agriculture expansion in recent decades. Therefore, increasing knowledge of plant diversity is critical for conservation purposes. We present a Legume checklist of the [ver mas...]
dc.contributor.authorMorales, Matias
dc.contributor.authorOakley, Luis
dc.contributor.authorSartori, Angela L. B.
dc.contributor.authorMogni, Virginia Y.
dc.contributor.authorAtahuachi, Margoth
dc.contributor.authorVanni, Ricardo O.
dc.contributor.authorFortunato, Renee Hersilia
dc.contributor.authorPrado, Darién E.
dc.date.accessioned2019-11-19T13:09:23Z
dc.date.available2019-11-19T13:09:23Z
dc.date.issued2019-08-14
dc.identifier.issn1932-6203
dc.identifier.otherhttps://doi.org/10.1371/journal.pone.0220151
dc.identifier.urihttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0220151
dc.identifier.urihttp://hdl.handle.net/20.500.12123/6327
dc.description.abstractThe Gran Chaco is a wide ecologic-geographic region comprising northern Argentina, western Paraguay, southern Bolivia and the southwestern extreme of Brazil. This region exhibits extreme temperatures, annually regular frosts, and sedimentary soils; it has been dramatically threatened by agriculture expansion in recent decades. Therefore, increasing knowledge of plant diversity is critical for conservation purposes. We present a Legume checklist of the Gran Chaco ecoregion including conservation status of its endemic species. Leguminosae is the third most diverse plant family in the Neotropics. Assuming a rigorous spatial definition of the Gran Chaco, we recorded 98 genera, 362 species, and 404 specific and infraspecific taxa. Endemic/typical taxa were 17%, comparable to adjacent tropical plant formations, and they were found in higher percentages in Caesalpinioideae (24%) and Cercidoideae (33%) than Papilionoideae (11%) subfamily. We also analyzed the plant diversity comparing lineages and subregions. The Gran Chaco Legumes are predominantly widespread generalists, or they belong to either Chaco sensu stricto or Neotropical Seasonally Dry Tropical Forest (SDTF) lineages. Though the Humid Chaco registered the highest species richness, Dry Chaco and Sierra Chaco, the most threatrened subregions, exhibited the highest percentages of exclusive and proper Chaco-lineage species. These results suggest that diversification of Legumes has been most relevant in Dry Chaco and Sierra Chaco, probably by their more demanding and harsh environmental conditions limiting the dispersion of generalists or intrusive-invading species. This study is paramount to reach an improved delimitation of the Gran Chaco ecoregion in transitional areas with the SDTF and Cerrado formations. Conservation status is critical in genera of high economic interest, such as Arachis, Mimosa and Prosopis. At least one third of endemic taxa exhibit a critical status of conservation or are endangered, many of them being relevant to inbreeding program or exhibiting multiple economic uses.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherPlos ONE
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourcePLoS ONE 14(8 ): e0220151 (August 2019)es_AR
dc.subjectSeasonalityeng
dc.subjectEstacionalidades_AR
dc.subjectForestryeng
dc.subjectCiencias Forestaleses_AR
dc.subjectNeotropical Regioneng
dc.subjectRegión Neotropicales_AR
dc.subjectBiogeographyeng
dc.subjectBiogeografíaes_AR
dc.subjectFabaceaees_AR
dc.titleDiversity and conservation of legumes in the Gran Chaco and biogeograpical inferenceses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.filFil: Morales, Matías. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentinaes_AR
dc.description.filFil: Oakley, Luis. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias, Campo Experimental Villarino; Argentina. Red List Authority Coordinator for the Temperate South American Plant Specialist Groups -International Union for Conservation of Nature; Reino Unidoes_AR
dc.description.filFil: Sartori, Angela L.B. Universidade Federal de Mato Grosso do Sul. Instituto de Biociências. Laboratorio de Sistemática Vegetal; Brasiles_AR
dc.description.filFil: Mogni, Virginia Y. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias, Campo Experimental Villarino; Argentinaes_AR
dc.description.filFil: Atahuachi, Margoth Universidad Mayor de San Simón. Centro de Biodiversidad y Genética. Herbario Forestal Nacional M. Cárdenas; Boliviaes_AR
dc.description.filFil: Vanni, Ricardo O. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentinaes_AR
dc.description.filFil: Fortunato, Renné Hersilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Morón. Facultad de Agronomía y Ciencias Agroalimentarias; Argentinaes_AR
dc.description.filFil: Prado, Darién E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Campo Experimental Villarino. Instituto de Investigaciones en Ciencias Agrarias IICAR (UNR-CONICET); Argentinaes_AR
dc.subtypecientifico


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