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A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
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Fauna, distribution, and DNA barcoding data of caddisflies (Insecta, Trichoptera) in Croatia
Mladen Kučinić1, Ana Previšić1,2, Anđela Ćukušić3
1Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102A, 10000 Zagreb, Croatia.
Zookeys
|December 22, 2025
Summary
This study details Croatia's caddisfly (Trichoptera) diversity, identifying 228 taxa across various regions and basins. DNA barcoding data enhances this comprehensive faunistic and taxonomic review.
Area of Science:
- Entomology
- Biodiversity research
- Zoogeography
Background:
- Trichoptera (caddisfly) research in Croatia has a developing history.
- Understanding insect biodiversity is crucial for ecological assessments.
- Croatia's diverse geography presents unique biogeographic patterns.
Purpose of the Study:
- To provide a comprehensive overview of Trichoptera diversity in Croatia.
- To analyze the distribution and species diversity across geographical and ecological regions.
- To conduct a faunistic and taxonomic review, including synonymy and literature critique.
Main Methods:
- Field surveys for adult specimens.
- DNA barcoding of larval stages for species identification.
- Literature review and taxonomic analysis of existing records.
Main Results:
- A total of 228 Trichoptera taxa (225 species) from 18 families and 74 genera were identified.
- Species distribution was analyzed across Continental (170 species), Alpine (155), and Mediterranean (131) regions.
- Significant data contributed to the BOLD Systems database, with 593 DNA barcoded specimens representing 176 species.
Conclusions:
- This study establishes a robust baseline for Croatian Trichoptera diversity.
- Biogeographic patterns are evident across different regions and river basins.
- Continued research, including molecular methods, is vital for a complete understanding of Trichoptera fauna.
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