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Trichoptera Life Stages Present Distinct Responses to Environmental Conditions in Amazonian Streams

  • Ecology, Behavior and Bionomics
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Abstract

Biological communities have their biodiversity patterns affected by environmental, spatial, and biogeographic factors that vary from taxa to taxa, and often between life stages. This is especially true when there are differences in the habitat the species use in each of them. Individuals of the insect order Trichoptera are mostly aquatic in their larval stage and terrestrial in their adult stage, which may result in different behaviors and environmental requirements. Our goal was to evaluate the congruence between the larval and adult stages of Trichoptera in Amazonian streams regarding their abundance, richness, and assemblage composition. Additionally, we tried to identify the main environmental factors related to each life stage. For this, larvae and adults of Trichoptera were sampled in the same sites at 12 streams in the Caxiuanã National Forest, Pará state, Brazil. Adult assemblages had greater richness of genera and abundance of individuals than the larval ones, and there was no congruence in the genera composition between these life stages. Our results also showed that different environmental variables structured Trichoptera larvae and adults. Since the sampling of larvae and adults proved to be complementary in the studied streams, we advise that Trichoptera diversity surveys consider both life stages of these organisms.

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Data Availability

All relevant data used in this study is available as supplementary material.

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Funding

M.J.P.A. thanks the National Council for Scientific and Technological Development (CNPq) for funding her PhD research project (Edital Universal MCTI/CNPQ 14/2014 Process # 461032/2014–7). L.J., L.S.B., and R.L. also received a productivity grant from CNPq (process # 304710/2019–9, 305929/2022–4, and 312531/2021–4, respectively). The Coordination for the Improvement of Higher Education Personnel (CAPES) for providing MJPA scholarship (process n° 88882.459978/2019–01 DS). M.S.L. received a postdoctoral scholarship from PDPG-AMAZONIA-LEGAL (CAPES). A.P.J. received a postdoctoral scholarship from PDCTR-FAPEPI/CNPq (Process n°. 306103/2022–2). We are also grateful to Dr. Adolfo Calor and Dr. Fabio Quinteiro for their supports in the identification of adult Trichoptera.

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Contributions

All authors contributed to the study conception and design. Material preparation and data collection were performed by Maria José P. Anacléto, Ana Paula Justino Faria, and Enaira Poliane da Silva Azevedo. All authors contributed to data analysis. The first draft of the manuscript was written by Maria José P. Anacléto and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Maria José P. Anacléto.

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The authors declare no competing interests.

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Edited by Angelo Pallini

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Anacléto, M.J.P., Linares, M.S., Faria, A.P.J. et al. Trichoptera Life Stages Present Distinct Responses to Environmental Conditions in Amazonian Streams. Neotrop Entomol 53, 314–322 (2024). https://doi.org/10.1007/s13744-023-01108-3

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  • DOI: https://doi.org/10.1007/s13744-023-01108-3

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