Variations in the Odonata Assemblages: How Do the Dry Season and Water Bodies Influence Them?

Autor: Medina-Espinoza EF; Depto de Entomología, Museo de Historia Natural, Univ Nacional Mayor de San Marcos, Lima, Lima, Peru. efme.04@gmail.com.; Programa de Pós-Graduação Em Zoologia, Univ Federal Do Pará, Belém, Pará, Brazil. efme.04@gmail.com.; Lab de Ecologia E Conservação (LABECO), Univ Federal Do Pará, Belém, Pará, Brazil. efme.04@gmail.com., Juen L; Programa de Pós-Graduação Em Zoologia, Univ Federal Do Pará, Belém, Pará, Brazil.; Lab de Ecologia E Conservação (LABECO), Univ Federal Do Pará, Belém, Pará, Brazil., Calvão LB; Programa de Pós-Graduação Em Zoologia, Univ Federal Do Pará, Belém, Pará, Brazil.; Lab de Ecologia E Conservação (LABECO), Univ Federal Do Pará, Belém, Pará, Brazil., Arellano Cruz G; Lab de Ecología de Artrópodos (LEA), Univ Nacional Agraria La Molina, Lima, Lima, Perú.
Jazyk: angličtina
Zdroj: Neotropical entomology [Neotrop Entomol] 2024 Jun; Vol. 53 (3), pp. 630-640. Date of Electronic Publication: 2024 Apr 24.
DOI: 10.1007/s13744-024-01153-6
Abstrakt: Diverse abiotic and biotic factors drive the ecological variation of communities across spatial and temporal dimensions. Within the Amazonian landscape, various freshwater environments exhibit distinct physicochemical characteristics. Thus, our study delved into the fluctuations of Odonata assemblages amidst distinct water bodies within Amazonia, encompassing two distinct climatic seasons. Comparative analysis was conducted on Odonata species diversity and assemblage composition across a blackwater pond, a lake, and a stream, spanning the initiation and culmination of the dry season in the southwestern Amazon region in Peru. Our methodology involved capturing adult Odonata using entomological nets on three separate occasions between 11:00 and 14:00 h for each water body in May (beginning of the dry season) and October (end of the dry season) of 2018. We also evaluated the influence of temperature, precipitation, and percent cloud cover on the abundance and richness of adult Odonata. Species richness and composition differed among the three water bodies in both periods of the dry season. No effect of the dry season periods on species richness and abundance was observed. However, except in the oxbow lake, the more abundant species were substituted to the end of the dry season. Our study highlights the influence of water body types on Odonata species diversity and composition. The effects of the sampling period during the dry season may not be immediately apparent in conventional diversity metrics, such as species richness and abundance. Instead, its effects manifest predominantly in the relative abundance of the species that compose these assemblages.
(© 2024. Sociedade Entomológica do Brasil.)
Databáze: MEDLINE
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