Introduction to the Special Issue “Aquatic Insects: Biodiversity, Ecology, and Conservation Challenges”

Vilenica, Marina; Vuataz, Laurent; Yanai, Zohar

doi:10.3390/d14070573

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The aquatic insect order Ephemeroptera is one of the groups that has experienced an increase in non‐native species notifications in recent times, owing to the sustained efforts of aquatic entomologists in the last two decades (Vilenica et al, 2022), the rise of autochthonous taxonomy (Domínguez & dos Santos, 2014), and the growing popularity of the order beyond the flyfishing sphere. Currently, four species are formally recognised as introduced, Caenis nigropunctata Klapálek in Hawaii, Caenis rivulorum Eaton in Japan, Cloeon smaeleni Lestage in Brazil, and Cloeon dipterum L. in Argentina, the US, and Canada.…”

Section: Introductionmentioning

confidence: 99%

Predicting the South American invasion pathways of the mayfly Cloeon dipterum Linnaeus 1761 (Ephemeroptera: Baetidae) using species distribution models

Cruz

Alencar

Cardoso

et al. 2023

Insect Conserv Diversity

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1. Cloeon dipterum is one of the rare exotic aquatic insect species found in the American continent. The species was recently introduced to Argentina. Apart from a few recent records concentrated in a small area in Argentina, there are no data available on its distribution on the continent. Using modelling techniques, we predicted for the first time the current and future areas of high invasion risk in South America.2. We produced species distribution models (SDMs) using six algorithms and based on 4672 occurrences and 20 environmental variables for both current conditions and future scenarios (GCMs: CanESM5 and MIROC6/SSPs: 2-4.5 and 5-8.5).3. The models predicted two large contiguous areas of high suitability and stability over time in all future forecasts (Paraná and coastal pathways), both of which are connected to the colonised area in Argentina and extend to Paraguay, Uruguay, and Brazil. The models also identified two potential new areas for introduction, Patagonia (Chile and Argentina) and the northeast of Brazil. However, introduction is considered unlikely in the highly suitable area in the Brazilian Northeast due to the lack of connectivity with donor areas. Models provide specific regions that can be used to detect colonisation expansion and improve our ability to implement measures to prevent introduction. 4. Our results provide evidence that C. dipterum will be a long-term element of South American diversity. Its persistence in distinctive climatic scenarios may pose a threat to resident controphic species, such as Callibaetis.

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Section: Introductionmentioning

confidence: 99%

Predicting the South American invasion pathways of the mayfly Cloeon dipterum Linnaeus 1761 (Ephemeroptera: Baetidae) using species distribution models

Cruz

Alencar

Cardoso

et al. 2023

Insect Conserv Diversity

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A comprehensive DNA barcoding reference database for Plecoptera of Switzerland

Vuataz,

Reding,

Reding

et al. 2024

Sci Rep

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DNA barcoding is an essential tool in modern biodiversity sciences. Despite considerable work to barcode the tree of life, many groups, including insects, remain partially or totally unreferenced, preventing barcoding from reaching its full potential. Aquatic insects, especially the three orders Ephemeroptera, Plecoptera, and Trichoptera (EPT), are key freshwater quality indicators worldwide. Among them, Plecoptera (stoneflies), which are among the most sensitive aquatic insects to habitat modification, play a central role in river monitoring surveys. Here, we present an update of the Plecoptera reference database for (meta)barcoding in Switzerland, now covering all 118 species known from this country. Fresh specimens, mostly from rare or localized species, were collected, and 151 new CO1 barcodes were generated. These were merged with the 422 previously published sequences, resulting in a dataset of 573 barcoded specimens. Our CO1 dataset was delimited in 115 CO1 clusters based on a priori morphological identifications, of which 17% are newly reported for Switzerland, and 4% are newly reported globally. Among the 115 CO1 clusters, 85% showed complete congruence with morphology. Distance-based analysis indicated local barcoding gaps in 97% of the CO1 clusters. This study significantly improves the Swiss reference database for stoneflies, enhancing future species identification accuracy and biodiversity monitoring. Additionally, this work reveals cryptic diversity and incongruence between morphology and barcodes, both presenting valuable opportunities for future integrative taxonomic studies. Voucher specimens, DNA extractions and reference barcodes are available for future developments, including metabarcoding and environmental DNA surveys.

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Aquatic Insects as Bioindicators of Water Quality in the Achenkovil River, Kerala, India.

Kurup

2024

Curr. World Environ

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The origin of the Achenkovil River, the Devarmalai of Western Ghats, is within the Konni reserve forest of Pathanamthitta district, flowing through Pathanamthitta, Kollam, and merging with the Pamba river in the Alappuzha district. This study included the spatial variation of aquatic insect fauna with respect to water quality. The bottom water samples and insect fauna were collected bimonthly using a Niskin sampler and D-frame nets for a period of one year (February 2019 to January 2020). The study yielded 10736 insect fauna under 8 orders, 21 families, 35 genera, and 36 species. How the quality of the water affects biodiversity of aquatic insects was examined using multivariate statistical techniques (PCA and CCA) and Pearson's correlation coefficient. The findings showed that the upstream portion of the river has a remarkable diversity and quantity of aquatic insect species. The major insect group in the collected sample was ephemeroptera. There were no pollution-sensitive taxa in the middle stream or downstream portions of the river, which suggests that the water quality was declining. The middle stream and downstream sections of the river did not contain any pollution-sensitive taxa, indicating deteriorating water quality. Human-caused factors like washing, cleaning cars, and washing cattle and disposal of garbage are common in these regions. Because most aquatic insects are sensitive to environmental fluctuations, they can be used as an efficient tool in biomonitoring studies.

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Introduction to the Special Issue “Aquatic Insects: Biodiversity, Ecology, and Conservation Challenges”

Abstract: In non-marine environments, insects comprise one of the most species-rich and abundant groups of organisms [...]

Cited by 3 publications

References 22 publications

Predicting the South American invasion pathways of the mayfly Cloeon dipterum Linnaeus 1761 (Ephemeroptera: Baetidae) using species distribution models

Predicting the South American invasion pathways of the mayfly Cloeon dipterum Linnaeus 1761 (Ephemeroptera: Baetidae) using species distribution models

A comprehensive DNA barcoding reference database for Plecoptera of Switzerland

Aquatic Insects as Bioindicators of Water Quality in the Achenkovil River, Kerala, India.

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