Coexistence mechanism of sympatric predaceous diving beetle larvae

Ecology, Journal Year: 2024, Volume and Issue: 105(4)

Published: Feb. 15, 2024

The authors declare no conflicts of interest. Data (Watanabe et al., 2024) are available in Zenodo at https://doi.org/10.5281/zenodo.10539009. Appendix S1. Please note: publisher is not responsible for the content or functionality any supporting information supplied by authors. Any queries (other than missing content) should be directed to corresponding author article.

Language: Английский

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Effects of urban environmental factors on the water-exiting behaviour of predaceous diving beetles

Journal of Insect Conservation, Journal Year: 2025, Volume and Issue: 29(2)

Published: April 1, 2025

Language: Английский

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Temporal Alpha and Beta Diversity of Diving Beetles (Coleoptera: Dytiscidae) Reveals Biotic Heterogenisation in Urban Ponds

Freshwater Biology, Journal Year: 2024, Volume and Issue: 70(1)

Published: Dec. 24, 2024

ABSTRACT Urbanisation has led to decreasing quantity and quality of both terrestrial aquatic habitats, resulting in biodiversity loss urban ecosystems. Current research focused on spatial patterns along gradients, while temporal have received little attention. Here, we investigated how alpha beta diversity beetles changed through time, if pond structural connectivity (i.e., clustering the ponds) presence or absence fish affected change. We trapped diving (Dytiscidae) 20 ponds Helsinki Metropolitan Area, Finland, for six years analysed data using generalised linear mixed models index. found that (a) dytiscid diversity, i.e., species richness total abundances, decreased increased. (b) Clustered had higher than isolated ponds, but did not differ between clustered ponds; lower losses gains ponds. (c) Ponds with change during study period, without experienced declining over time; fish. Our results indicate assemblages biotic heterogenisation years, processes are different Dytiscids more likely maintain stable populations due immigration via rescue effects long‐lasting negative may replace urban‐sensitive urban‐adapted species. The dynamics invertebrates suggest improving landscape local habitat conditions can mitigate support communities

Language: Английский

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Dine‐in or take‐away? Scavenging strategies in predaceous diving beetles at different water depths

Entomologia Experimentalis et Applicata, Journal Year: 2024, Volume and Issue: 172(8), P. 704 - 709

Published: April 8, 2024

Abstract Predaceous diving beetle adults scavenge for carrion in freshwater habitats. We identified two scavenging strategies used by adult Dytiscus sinensis Feng (Coleoptera: Dytiscidae) to locate and consume food at the bottom of water when needing surface air store renewal: dine‐in then relocate (dine‐in strategy) carry (take‐away strategy). In 5‐cm‐deep water, a higher proportion individuals successfully located within an 8‐min test window than 25‐cm‐deep water. Their latencies locating did not differ among depths. preferred take‐away strategy them adopted Further, 10‐cm‐deep showed that success rate or efficiency relocating increase with experience it first time. This might explain why D. shallower which had lower risks losing food. The present study revealed direct bottom‐up benefit dytiscids foraging where finding securing were easier. Our findings demonstrate surfacing requirement dytiscid was reflected depth‐dependent preferences.

Language: Английский

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Integrating Historical and Contemporary Data for Narrow-Foot Hygrotus Diving Beetle (Hygrotus diversipes Leech, 1966): Perspectives Studying Invertebrates of Management and Conservation Concern

Western North American Naturalist, Journal Year: 2024, Volume and Issue: 84(4)

Published: Dec. 17, 2024

Language: Английский

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