Effects of different prey on larval growth in the diving beetle Cybister sugillatus Erichson, 1834 (Coleoptera: Dytiscidae)

IF 0.5 4区农林科学 Q4 ENTOMOLOGY

Aquatic Insects Pub Date : 2023-01-19 DOI:10.1080/01650424.2022.2141259

Taichi Fukuoka, R. Tamura, Shun Yamasaki, S. Ohba

引用次数: 2

Abstract

Abstract The population size of the diving beetle Cybister sugillatus Erichson 1834 (Coleoptera: Dytiscidae) has been declining in Japan; therefore, there is a need to understand their fundamental ecology for conservation purpose. Understanding the feeding habits in the larval stage will contribute to habitat restoration and ex situ conservation. In this study, we investigated the effects of the availability of different kinds of prey, such as Odonata nymphs and tadpoles, on larval growth of C. sugillatus. The results showed that Odonata nymphs were the preferred prey for larval growth because C. sugillatus larvae did not show significant growth on tadpoles alone. This trend was also observed in other Cybister species. Our results suggest that habitat restoration requires the development of an environment rich in a variety of aquatic invertebrates, including Odonata nymphs. In ex situ conservation, stable rearing and breeding of C. sugillatus can be made possible by providing them with Odonata nymphs as food.

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不同饵料对潜水甲虫幼虫生长的影响(鞘翅目:蛱蝶科)

摘要日本潜水甲虫(Cybister sugillatus Erichson 1834)种群数量呈下降趋势(鞘翅目:蟹科);因此，有必要了解它们的基本生态，以达到保护的目的。了解幼虫期的摄食习性有助于生境恢复和迁地保护。本研究研究了不同种类的食饵(如蛙类若虫和蝌蚪)对棘棘夜蛾幼虫生长的影响。结果表明，水蛭幼虫单独在蝌蚪上生长不明显，因此水蛭若虫是水蛭幼虫生长的首选猎物。这一趋势在其他Cybister物种中也被观察到。我们的研究结果表明，栖息地的恢复需要一个丰富的水生无脊椎动物的环境的发展，包括齿形若虫。在非原生境保护中，为棘球棘球绦虫提供若虫作为食物，可以使棘球棘球绦虫的稳定饲养和繁殖成为可能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.