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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Comparison of behavior and foraging ability between two congeneric species of large-bodied diving beetle (Coleoptera: Dytiscidae) larvae, a non-expanding species and a distribution-expanding species

European Journal of Entomology, Journal Year: 2025, Volume and Issue: 122, P. 56 - 64

Published: March 20, 2025

Global warming has altered the distribution of several insect species, including those inhabiting aquatic environments and this range expansion may modify existing interspecific interactions by facilitating new encounters between species that were not originally sympatric. is highly likely to expand Cybister tripunctatus lateralis (Coleoptera: Dytiscidae) in Japan, leading competition for food resources among congeneric species. In particular, larvae share similar feeding habits, suggesting occur, although yet been verified. Therefore, study aimed compare microhabitat use foraging abilities two - C. with an expanded area brevis, a non-expanding body size. We compared (1) behavior quantified visual scan census, (2) time taken reach food, number prey animals consumed each laboratory experiments. The results indicated behavioral patterns tended involve mainly perch rest on plants. There no clear differences there variations instars. was difference species; however, it evident reached earlier than brevis. suggested utilize common underwater microhabitat, competitive advantage over brevis terms resources. However, further experimental verification continued trends should be carefully monitored, as reproductive habitats field differ advantages depend water temperature.

Language: Английский

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Different habitat use of two Cybister (Coleoptera: Dytiscidae) species larvae in a paddy field water system

Entomological Science, Journal Year: 2024, Volume and Issue: 27(4)

Published: Nov. 7, 2024

Abstract In recent years, it has been suggested that Cybister tripunctatus lateralis is increasing in abundance and expanding its distribution, there concern about the effects of interspecific competition with another congeneric species, brevis . Although two species appear to have overlapping niches, they are often observed sympatrically. Larval habitat use by was investigated a paddy field water system. The results display C. more abundant ditches fields. It thought , which an ecology suited high temperatures, selected fields, where temperatures tend rise, as reproductive habitat. contrast, phenology generally synchronized, no differences underwater position rice paddies were observed. Thus, niches overlap fields may occur.

Language: Английский

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Review of Dytiscidae (Coleoptera) eggs: focus on Japanese species

Journal of Insect Conservation, Journal Year: 2024, Volume and Issue: 29(1)

Published: Nov. 19, 2024

Language: Английский

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