Spatiotemporal distribution of invertebrate fauna in a mesovoid shallow substratum in iron formations

Dornellas, Lígia Maria Saback Moreira; da Silva, Pedro Giovâni; Bichuette, Maria Elina; Auler, Augusto S.; Culver, David C.; Pipan, Tanja; Pires, Lorena Oliveira; de Siqueira Neves, Frederico

doi:10.1007/s10531-024-02801-4

Biodivers Conserv

2024

DOI: 10.1007/s10531-024-02801-4

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Spatiotemporal distribution of invertebrate fauna in a mesovoid shallow substratum in iron formations

Lígia Maria Saback Moreira Dornellas,

Pedro Giovâni da Silva,

Maria Elina Bichuette

et al.

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2024

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Cited by 1 publication

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Subterranean fauna associated with mesovoid shallow substratum in canga formations from southeastern Brazil: invertebrate biodiversity of a highly threatened ecosystem

Dornellas,

da Silva,

Auler

et al. 2024

Sci Rep

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Iron Formations (IF) are threatened by mining, particularly the Mesovoid Shallow Substratum (MSS), an understudied subterranean environment. We evaluate the spatiotemporal patterns of subterranean fauna in MSS of iron duricrust (canga) in the Iron Quadrangle and Southern Espinhaço Range, southeastern Brazil. Samplings took place between July 2014 and June 2022 using five trap types. We sampled 108,005 individuals, 1,054 morphospecies, and seven phyla, globally the largest dataset on MSS in IF. Arthropoda represented 97% of all invertebrates sampled. We identified 31 troglomorphic organisms, primarily Arthropoda and Platyhelminthes. MSS traps were the most efficient method, capturing 80% of all invertebrates. Morphospecies were more prevalent in each locality than shared among localities. Species replacement was the main processes to spatial differences. Over time, we found a decrease of total dissimilarity and importance of species replacement for troglomorphic organisms. A positive correlation between spatial distance and compositional dissimilarity of invertebrates was found. Iron Quadrangle and Southern Espinhaço Range showed marked differences in the spatiotemporal patterns of subterranean fauna. Brazilian IF are threatened, with their biological significance not fully understood but highly endangered due their limited distribution. Conservation efforts require a comprehensive understanding of both biotic and abiotic factors shaping the entire IF ecosystem. Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-75053-5.

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Subterranean fauna associated with mesovoid shallow substratum in canga formations from southeastern Brazil: invertebrate biodiversity of a highly threatened ecosystem

Dornellas,

da Silva,

Auler

et al. 2024

Sci Rep

View full text Add to dashboard Cite

show abstract

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Spatiotemporal distribution of invertebrate fauna in a mesovoid shallow substratum in iron formations

Cited by 1 publication

References 65 publications

Subterranean fauna associated with mesovoid shallow substratum in canga formations from southeastern Brazil: invertebrate biodiversity of a highly threatened ecosystem

Subterranean fauna associated with mesovoid shallow substratum in canga formations from southeastern Brazil: invertebrate biodiversity of a highly threatened ecosystem

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