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      Diversidad, sistemática y conservación de roedores en el extremo sudoccidental del Bosque Atlántico Interior

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          Abstract

          Presentamos una síntesis del conocimiento actual de los roedores de la provincia de Misiones, Argentina, con énfasis en aspectos taxonómicos, cromosómicos, biogeográficos y de conservación. En esta provincia, el orden está representado por 7 familias: Sciuridae (1 género, 1 especie), Cricetidae (17, 24), Caviidae (2, 2), Cuniculidae (1, 1), Dasyproctidae (1, 1), Echymyidae (3, 3) y Erethizontidae (1, 1). De 1 a 5 especies -dependiendo de la autoridad taxonómica usada- son endémicas de Misiones. Discutimos brevemente algunas problemáticas taxonómicas, destacando aquellos interrogantes que aún persisten (e.g., la compleja situación del género Brucepattersonius). Para varias especies aportamos datos cromosómicos novedosos y los comparamos con aquellos disponibles para Brasil. Un análisis de la riqueza a nivel provincial indica que los mayores valores para ese parámetro ocurren hacia el centro-sur del territorio, en un área de interdigitación entre el Bosque Atlántico Interior y la ecorregión de los Campos y Malezales. Discutimos el rol de los grandes ríos de la región como barrera para la dispersión de la fauna (e. g., el Paraná entre Argentina y el este Paraguay). Por lo menos 9 especies de roedores con distribución en la provincia de Misiones han sido referidas bajo alguna categoría de amenaza o cercana a la amenaza. En todos los casos, la supervivencia de esos taxones depende de que se mantenga la integridad y conectividad entre los remanentes boscosos.

          Translated abstract

          We present a synthesis of the current knowledge of the rodents from the province of Misiones, Argentina, with emphasis on taxonomic, chromosomal, biogeographic and conservation issues. In this province, the order is represented by 7 families: Sciuridae (1 genus, 1 species), Cricetidae (17, 24), Caviidae (2, 2), Cuniculidae (1, 1), Dasyproctidae (1, 1), Echymyidae (3, 3) and Erethizontidae (1, 1). From 1 to 5 species -depending on taxonomic authorities- are endemic to Misiones. We briefly discuss some taxonomic problems, highlighting those questions that still persist (e.g., the complex situation of the genus Brucepattersonius). For several species, we provide novel chromosome data and compare it with the information available for Brazil. An analysis of the species richness at the provincial level indicates that the highest values for this parameter occur towards the south-central portion of the territory, in an area of interdigitation between the Interior Atlantic Forest and the ecoregion of Campos y Malezales. We discuss the role of large rivers in the region as barriers to the dispersal of this fauna (e.g., the Paraná between Argentina and eastern Paraguay). At least 9 species of rodents with distribution in the province of Misiones have been classified under some category of threat or near to the threat. In all cases, the survival of these taxa depends on maintaining the integrity and connectivity between forest remnants.

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          Biodiversity hotspots for conservation priorities.

          Conservationists are far from able to assist all species under threat, if only for lack of funding. This places a premium on priorities: how can we support the most species at the least cost? One way is to identify 'biodiversity hotspots' where exceptional concentrations of endemic species are undergoing exceptional loss of habitat. As many as 44% of all species of vascular plants and 35% of all species in four vertebrate groups are confined to 25 hotspots comprising only 1.4% of the land surface of the Earth. This opens the way for a 'silver bullet' strategy on the part of conservation planners, focusing on these hotspots in proportion to their share of the world's species at risk.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            A colchicine, hypotonic citrate, squash sequence for mammalian chromosomes.

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              • Record: found
              • Abstract: not found
              • Article: not found

              Effects of forest fragmentation on small mammals in an Atlantic Forest landscape

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rmacn
                Revista del Museo Argentino de Ciencias Naturales
                Rev. Mus. Argent. Cienc. Nat.
                Museo Argentino de Ciencias Naturales Bernardino Rivadavia e Instituto Nacional de Investigación de las Ciencias Naturales (Ciudad Autónoma de Buenos Aires, , Argentina )
                1853-0400
                June 2018
                : 20
                : 1
                : 151-164
                Affiliations
                [03] Buenos Aires orgnameMuseo Argentino de Ciencias Naturales Bernardino Rivadavia orgdiv1División Mastozoología Argentina
                [01] Posadas Misiones orgnameCONICET-UNaM orgdiv1FCEQyN orgdiv2Laboratorio de Genética Evolutiva (LGE) Argentina
                [02] Puerto Madryn Chubut orgnameCONICET orgdiv1CENPAT orgdiv2Centro Para el Estudio de Sistemas Marinos Argentina
                Article
                S1853-04002018000100014
                0eae2cfb-ae21-4bda-91c4-04ac85572384

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 06 May 2018
                : 30 November 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 80, Pages: 14
                Product

                SciELO Argentina

                Categories
                Homenaje a José Yepes

                Taxonomía,Caviomorpha,Rodentia,Misiones,Taxonomy,Sigmodontinae
                Taxonomía, Caviomorpha, Rodentia, Misiones, Taxonomy, Sigmodontinae

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