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Mapping ecological corridors in the Upper Paraguay River Basin, Brazil: Applications for sustainability, public policy and decision‐making
Mapping ecological corridors in the Upper Paraguay River Basin, Brazil: Applications for sustainability, public policy and decision‐making
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Mapping ecological corridors in the Upper Paraguay River Basin, Brazil: Applications for sustainability, public policy and decision‐making
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Mapping ecological corridors in the Upper Paraguay River Basin, Brazil: Applications for sustainability, public policy and decision‐making
Mapping ecological corridors in the Upper Paraguay River Basin, Brazil: Applications for sustainability, public policy and decision‐making
Journal Article

Mapping ecological corridors in the Upper Paraguay River Basin, Brazil: Applications for sustainability, public policy and decision‐making

2025
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Overview
The Upper Paraguay Basin (BAP) is one of the largest river basins in South America, covering three countries: Brazil, Bolivia and Paraguay. In Brazil, one of the main risks to BAP conservation is the loss of native vegetation. In the floodplain region of the BAP, more than 13% of native vegetation was converted, while in the surrounding highlands the loss of native vegetation reached over 61% of the area. These values tend to increase, highlighting the importance of territorial planning for sustainable development in the region. In this sense, we mapped the ecological corridors in the Upper Paraguay Basin, in Brazil, to support conservation strategies focused on maintaining connectivity on a regional scale. To achieve this, we use the Least Cost Path and Circuitscape methods, based on a multispecies approach. As a result, we identified 303 fragments of native vegetation or conservation units that can be considered nodes and 859 ecological corridors. Of all the ecological corridors identified, around 288 were lost in just 3 years, due to the conversion of native vegetation. In general, our results were an extensive network of corridors, which can be applied in UPRB territorial planning, aiming to reduce the impacts of loss of connectivity in the region. Our results highlight the importance of territorial planning and quick and effective decision‐making to mitigate the effects of native vegetation loss for biodiversity conservation in the UPRB. Resumo A Bacia do Alto Paraguai (BAP) é uma das maiores bacias hidrográficas da América do Sul, abrangendo três países: Brasil, Bolívia e Paraguai. No Brasil, um dos maiores riscos para a conservação da BAP é a perda de vegetação nativa. Na planície, região baixa da BAP, mais de 13% da vegetação nativa foi convertida, o planalto, região alta, sofreu a maior perda de vegetação nativa, com mais de 61% da área. A tendência desses valores é de aumento, destacando a importância do planejamento territorial para um desenvolvimento sustentável da região. Nesse sentido, nós mapeamos os corredores ecológicos existentes na Bacia do Alto Paraguai, no Brasil, para dar suporte a estratégias de conservação focadas na manutenção da conectividade em escala regional. Para isso, usamos os métodos do caminho de menor custo e Circuitscape, com base em uma abordagem multiespécie. Como resultado, nós identificamos 303 fragmentos de vegetação nativa ou unidades de conservação que podem ser considerados nodos e 859 corredores ecológicos. De todos os corredores ecológicos identificados, cerca de 288 foram perdidos em apenas três anos, devido à conversão da vegetação nativa. Em geral, nossos resultados foram uma extensa rede de corredores, que podem ser aplicados no planejamento territorial da UPRB, visando a redução dos impactos da perda de conectividade da região. Nossos resultados destacam a importância do planejamento territorial e da tomada de decisões rápida e eficaz para mitigar os efeitos da perda de vegetação nativa para a conservação da biodiversidade na UPRB. We identified and mapped ecological corridors on a regional scale for the entire upper paragauai basin, which is one of the largest basins in Brazil. Our results were an extensive network of corridors across the basin, as well as identifying areas for better connectivity. Thus, the network of corridors on a regional scale but linked to the landscape scale, obtained in our results, is a useful basis to support the definition and implementation of public policies in the region.