Life history of Copelatus kammuriensis Tamu and Tsukamoto, 1955 (Coleoptera: Dytiscidae: Copelatinae) and biological implications

IF 0.5 4区农林科学 Q4 ENTOMOLOGY

Aquatic Insects Pub Date : 2023-09-25 DOI:10.1080/01650424.2023.2253250

Kohei Watanabe, Masakazu Hayashi, Seidai Nagashima

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引用次数: 0

Abstract

AbstractThe diversity of Japanese Dytiscidae has declined substantially in recent years, therefore, a better understanding of the biology and ecology of this insect family is essential to ensure its conservation. In this study, captive breeding experiments were conducted to elucidate the life history, and field surveys were performed to determine the reproductive habitats of the Japanese endemic species Copelatus kammuriensis Tamu and Tsukamoto, 1955. The reproductive habitats, egg-laying environments, immature periods, and unique ecology of the species were identified. The larval periods of five Copelatus species were compared, and that of C. kammuriensis was found to be the shortest; its reproductive habitats were unstable rain pools that easily dried up in the absence of rain over up to 10 days. These results suggest that a short larval period and rapid predatory behaviour are important for the survival of C. kammuriensis.Keywords: Biologyconservationdiving beetleimmature stagestemporary water AcknowledgementsWe express our sincere gratitude to Tomoki Sumikawa at the Ishikawa Insect Museum for his cooperation with rearing experiments and confirming the ages of larvae, and Hirokazu Fukutomi at the Ishikawa Insect Museum for his support with microscopic observations. Finally, we would like to thank Editage (www.editage.jp) for English language editing.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis research was funded by joint research expenses from the Hoshizaki Green Foundation.

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田木和冢本桡翅虫的生活史(鞘翅目:蝶翅科:桡翅虫科)及其生物学意义

摘要近年来，日本菊科昆虫的多样性急剧下降，因此，更好地了解这一昆虫科的生物学和生态学对其保护至关重要。本研究通过圈养繁殖实验阐明了日本特有种北斑蛾(Copelatus kammuriensis Tamu and Tsukamoto, 1955)的生活史，并对其繁殖生境进行了实地调查。鉴定了该物种的繁殖生境、产卵环境、未成熟期和独特生态。比较了5种蠓的幼虫期，发现北蠓幼虫期最短;它的繁殖栖息地是不稳定的雨池，在没有雨水的情况下，10天内很容易干涸。这些结果表明，短的幼虫期和快速的捕食行为对北蛾的生存至关重要。我们衷心感谢石川昆虫博物馆的Tomoki Sumikawa在饲养实验和确定幼虫年龄方面的合作，以及石川昆虫博物馆的Hirokazu fukuomi在显微镜观察方面的支持。最后，我们要感谢意得辑(www.editage.jp)的英文编辑。披露声明作者未报告潜在的利益冲突。本研究由Hoshizaki Green Foundation联合研究费用资助。

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来源期刊

Aquatic Insects 生物-昆虫学

CiteScore

2.00

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： Aquatic Insects is an international journal publishing original research on the systematics, biology, and ecology of aquatic and semi-aquatic insects. The subject of the research is aquatic and semi-aquatic insects, comprising taxa of four primary orders, the Ephemeroptera, Odonata, Plecoptera, and Trichoptera but also aquatic and semi-aquatic families of Hemiptera, Coleoptera, and Diptera, as well as specific representatives of Hymenoptera , Lepidoptera, Mecoptera, Megaloptera , and Neuroptera that occur in lotic and lentic habitats during part of their life cycle. Studies on other aquatic Hexapoda (i.e., Collembola) will be only accepted if space permits. Papers on other aquatic Arthropoda (e.g., Crustacea) will not be considered, except for those closely related to aquatic and semi-aquatic insects (e.g., water mites as insect parasites). The topic of the research may include a wide range of biological fields. Taxonomic revisions and descriptions of individual species will be accepted especially if additional information is included on habitat preferences, species co-existing, behavior, phenology, collecting methods, etc., that are of general interest to an international readership. Descriptions based on single specimens are discouraged. Detailed studies on morphology, physiology, behavior, and phenology of aquatic insects in all stadia of their life cycle are welcome as well as the papers with molecular and phylogenetic analyses, especially if they discuss evolutionary processes of the biological, ecological, and faunistic formation of the group.