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High diversity of diurnal Lepidoptera associated with landscape heterogeneity in semi-urban areas of Loja City, southern Ecuador

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Abstract

Urbanization rates are increasing worldwide; therefore, urban and semi-urban ecosystems are the focus of various studies that explore their importance for biodiversity conservation. In the order Lepidoptera high species diversity has been observed in areas with distinct levels of disturbance. In Ecuador, most efforts to study the diversity of butterflies have been concentrated in protected natural areas, whereas studies in semi-urban or urban areas are limited. In this study, we measured the diversity of diurnal Lepidoptera in two semi-urban areas, in southern Ecuador. We visited these areas during the dry season, in the hours of peak butterfly activity, and recorded the species and abundances of each. We estimated relative abundances, evenness, and beta diversity to characterize butterfly assemblages. We found high abundance and richness of Lepidoptera species and low similarities between the two semi-urban areas (Jaccard index = 0.21). Highest species richness was observed in the most heterogeneous area in terms of vegetation composition, owing to the type of management that it receives. Four species represented 50% of the total abundance observed in both sites, and various singletons were registered. This pattern of dominance is characteristic of disturbed areas, where generalist species adapt easily to anthropic environments. However, we also found relatively high richness and abundance of the members of the tribe Ithomiini, which are mostly present in primary forests. Our findings highlight the importance of semi-urban areas for conservation of butterfly diversity and the crucial role of proper management of anthropic areas to preserve biodiversity in this changing world.

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Acknowledgments

We would like to thank A. Medina, G. Medina, M. Gutiérrez, and A. Herrera, from the Botanical Garden and the PUEAR for facilitating access to these areas. N. Samaniego helped us during part of the fieldwork and M. Mazón, P. Benítez, and J. Ramírez helped with logistics. We also thank Pierre Boyer for identifying some of the specimens collected, and J. Soberón and A. T Peterson for their suggestions on an early version of the manuscript and prof-reading the document.

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CNP and MEC designed the study; CNP and JDQ collected and prepared specimens; CNP and MFC identified the specimens. CNP, MEC, and MFC performed the analyses. CNP, MEC, MFC, ZA, and NA wrote the manuscript. All authors revised and edited the last version of the manuscript.

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Correspondence to Claudia Nuñez-Penichet.

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All data generated or analyzed during this study are included in this published article [Table 1].

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The authors declare that they have no conflict of interest.

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Nuñez-Penichet, C., Cobos, M.E., Checa, M.F. et al. High diversity of diurnal Lepidoptera associated with landscape heterogeneity in semi-urban areas of Loja City, southern Ecuador. Urban Ecosyst 24, 1155–1164 (2021). https://doi.org/10.1007/s11252-021-01110-w

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  • DOI: https://doi.org/10.1007/s11252-021-01110-w

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