Multiple facets of biodiversity are threatened by mining-induced land-use change in the brazilian amazon
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Universidade Federal de Minas Gerais
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Artigo de periódico
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Aim: Mining is increasingly pressuring areas of critical importance for biodiversity con-servation, such as the Brazilian Amazon. Biodiversity data are limited in the tropics,restricting the scope for risks to be appropriately estimated before mineral licensingdecisions are made. As the distributions and range sizes of other taxa differ markedlyfrom those of vertebrates—the common proxy for analysis of risk to biodiversity frommining—whether mining threatens lesser-studied taxonomic groups differentially at aregional scale is unclear.Location: Brazilian Amazon. Methods: We assess risks to several facets of biodiversity from industrial miningby comparing mining areas (within 70 km of an active mining lease) and areas unaf-fected by mining, employing species richness, species endemism, phylogenetic diver-sity and phylogenetic endemism metrics calculated for angiosperms, arthropods andvertebrates.Results: Mining areas contained higher densities of species occurrence records thanthe unaffected landscape, and we accounted for this sampling bias in our analyses.None of the four biodiversity metrics differed between mining and nonmining areasfor vertebrates. For arthropods, species endemism was greater in mined areas. Minedareas also had greater angiosperm species richness, phylogenetic diversity and phylo-genetic endemism, although less species endemism than unmined areas.Main Conclusions: Unlike for vertebrates, facets of angiosperm and arthropod diver-sity are relatively higher in areas of mining activity, underscoring the need to considermultiple taxonomic groups and biodiversity facets when assessing risk and evaluatingmanagement options for mining threats. Particularly concerning is the proximity ofmining to areas supporting deep evolutionary history, which may be impossible torecover or replace. As pressures to expand mining in the Amazon grow, impact as-sessments with broader taxonomic reach and metric focus will be vital to conservingbiodiversity in mining regions.
Abstract
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Espécies, Minerais
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Endemism, Evolutionary potential, Extractive industries, Habitat loss, Indirect impacts, Mineralresource governance, Phylogenetic diversity, Phylogeography, Species richness
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https://onlinelibrary.wiley.com/doi/10.1111/ddi.13753