Amazon streams impacted by bauxite mining present distinct local contributions to the beta diversity of aquatic insects, fish, and macrophytes.

Autor: Ferreira VRS; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil. Electronic address: victor_rennan890@hotmail.com., Cunha EJ; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil; Instituto Tecnológico Vale (ITV), Rua Boaventura da Silva, 955, Belém 66055-900, Brazil., Calvão LB; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., Luiza-Andrade A; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil; Laboratory of Biodiversity and Conservation (LABICON), Departamento de Biologia, Universidade Federal de Rondônia (UNIR), BR 364, Km 9,5, Porto Velho, RO 76801-974, Brazil., de Resende BO; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., de Carvalho FG; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil; Instituto Tecnológico Vale (ITV), Rua Boaventura da Silva, 955, Belém 66055-900, Brazil., Bomfim FF; Laboratory of the Ecology of Primary Producers (ECOPRO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., Fares AL; Laboratory of the Ecology of Primary Producers (ECOPRO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., Cabral GS; Laboratory of the Ecology of Primary Producers (ECOPRO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., Lima M; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., de Assis Montag LF; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., Michelan TS; Laboratory of the Ecology of Primary Producers (ECOPRO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil., Juen L; Laboratory of Ecology and Conservation (LABECO), Graduate Program in Ecology, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 1, Belém, PA 66075-110, Brazil.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Oct 28, pp. 177292. Date of Electronic Publication: 2024 Oct 28.
DOI: 10.1016/j.scitotenv.2024.177292
Abstrakt: Integrating the physicochemical characteristics of aquatic environments with their biotas is essential for the conservation and monitoring of biodiversity, given the sensitivity of both the biotic and the abiotic components to environmental changes linked to water quality and human activities. In the present study, we evaluate how the contributions of different taxa to beta diversity, through local and species effects, can indicate the priority sites for conservation and ecological restoration in an Amazon region impacted by bauxite mining. We also investigate how environmental conditions at local and landscape scales influence the beta diversity of the aquatic biota. We hypothesize that unique species assemblages (a high local contribution) are more likely to be found in more degraded streams, with these assemblages being influenced strongly by local conditions and landscape characteristics. Our findings indicate that local contributions to beta diversity can be explained significantly by physicochemical variables, such as the pH and electrical conductivity of the water, with streams impacted by mining exhibiting distinct species compositions. The environmental factors affected different biological groups in distinct manners, including fish, aquatic insects (water bugs, and the larvae of mayflies, stoneflies, caddisflies, and dragonflies), adult dragonflies, and macrophytes. Streams with unique communities also often exhibited low species richness, which highlights the need for environmental restoration. These results reinforce the value of the use of beta diversity metrics as guidelines for conservation and restoration efforts in aquatic ecosystems that have been affected by anthropogenic disturbances. Furthermore, our findings underscore the importance of a multi-taxon approach to ensure the formulation of a more comprehensive picture of the responses of a region's biodiversity to anthropogenic impacts.
(Copyright © 2024. Published by Elsevier B.V.)
Databáze: MEDLINE
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