Calvão L.B. & al. 2024

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Calvão L.B. & al. 2024 - Dragonflies (Insecta, Odonata) from northeast Santa Catarina and notes on the occurrence of species in the region. - Biota Neotropica, 24 (2), 2024 : 1-8. - PDF LINK

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Résumé (traduction libre)

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Abstract
We present a checklist of Odonata (Insecta) species occurring in streams in the municipality of Araquari, northeastern state of Santa Catarina (SC), southern Brazil. Five stream reaches were surveyed bi-annually from March 2016 to March 2018. Overall, we recorded 18 taxa (16 species) from 12 genera and four families. Coenagrionidae and Libellulidae were the most species-rich families (seven species each ; 43% of the total number of species recorded each). Idioneura ancilla Selys, 1860, Telagrion longum Selys, 1876 (Coenagrionidae) and Erythrodiplax umbrata (Linnaeus, 1758) (Libellulidae) are recorded for the firstx time in the state of Santa Catarina. Species occurrence patterns were remarkably seasonal in the studied streams, with 70% of the species recorded in the summer only, and only 25% of the species occurring in both seasons at the same stream. Our findings revealed odonate communities with marked space-time interactions in species occurrence and contribute to understand odonate biology in subtropical streams in a human-dominated landscape, and also contribute to improve the knowledge on odonate distribution in South America.