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Dung beetle communities of altitudinal Atlantic forest remnants: diversity and composition

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International Journal of Tropical Insect Science Aims and scope Submit manuscript

Abstract

The Altitudinal Atlantic Forest is comprised of humid forest enclaves on top of the mountains surrounded by the Caatinga's xeric shrubland vegetation. It is considered a humidity refuge of endemism in semi-arid regions, and it is under intense anthropogenic pressure. Dung beetle communities are widely used as an ecological indicator of environmental conservation. However, dung beetle communities of the Altitudinal Atlantic Forest are poorly studied, and their value for biodiversity conservation in semi-arid regions is unknown. We describe and compare dung beetle communities of Altitudinal Atlantic Forest remnants located in the Brazilian Northeast semi-arid region to evaluate whether diversity patterns and species composition differ among the remnants. We captured 1,333 beetles belonging to 24 species. Only one remnant showed a statistically significant difference in diversity based on species richness and abundance, and beta diversity showed a high dissimilarity among remnants. The remnants had in common only one species, and the dominant species were distinct among them. Species composition was 16% similar among the sampled remnants, and we registered species commonly found in the Atlantic Forest, the Caatinga, and Amazonia. The structure of the dung beetle community in each remnant could be related to the historical origin and maintenance of the Altitudinal Atlantic Forest. Species compositions changed as a result of geographic location and surrounding environments, which act as filters to dung beetle species flow and establishment. We highlight the importance of the Altitudinal Atlantic Forest for the conservation and maintenance of biodiversity in the semi-arid region.

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Acknowledgments

We thank Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) by scientific initiation scholarship to JCSC and funding to RCM (CNPQ-PQ2 305298/2014-3), and LGBI (Laboratório de Genética e Biodiversidade de Insetos) team for their support with the field and laboratory work. We appreciate the comments of the evaluators, they helped to improve the document.

Funding

This study was funded by Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq (grant number CNPQ-PQ2 305298/2014–3).

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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Janaina Camara S. da Cunha and Julliana Barretto. Funding acquisition and resources: Rita de Cássia Moura and Fernando Silva. Julliana Barretto wrote the manuscript first draft, and all authors commented on previous versions. All authors read and approved the final manuscript.

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Correspondence to J. Barretto.

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The authors declare that they have no conflict of interest.

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Barretto, J., da Cunha, J.C.S., Silva, F. et al. Dung beetle communities of altitudinal Atlantic forest remnants: diversity and composition. Int J Trop Insect Sci 41, 2873–2881 (2021). https://doi.org/10.1007/s42690-021-00471-1

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  • DOI: https://doi.org/10.1007/s42690-021-00471-1

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