Emergence of Amphibious Insects from an Old Beaver Pond in the Upper Khoper Valley under Conditions of the Forest Steppe

IF 0.7 4区环境科学与生态学 Q4 ECOLOGY

Contemporary Problems of Ecology Pub Date : 2023-12-05 DOI:10.1134/s1995425523060197

A. E. Silina, N. N. Sushchik, M. I. Gladyshev, E. M. Kurina, A. A. Kolmakova, D. G. Seleznev

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Abstract

This work presents the results of studies of the emergence of amphibiotic insects from the old beaver pond on the Yuzhnaya River of the Privolzhskaya Lesostep Nature Reserve in the Upper Khoper basin. The parameters of abundance, biomass, and frequency of occurrence are given for insects from 34 families and 8 orders; the timing of their emergence in different parts of the pond is indicated. The dominant and common species are identified: chironomids Paramerina cingulata (Walk.) and Cricotopus silvestris (F.), biting midges (Bezzia bicolor (Mg.)), chaoborids Chaoborus flavicans (Mg.), and mayflies Cloeon inscriptum (Bgtss.). The intensity of the emergence of insects is 12.10 individuals/m² per day; the average daily transfer of biomass is 49.23 mg/m² per day. The analysis of the fatty acid composition and content of the main biogenic elements in adults of amphibiotic insects is carried out. The results of calculations of the energy and matter transfer, including biogenic elements (carbon, phosphorus, and nitrogen) and polyunsaturated fatty acids (PUFAs) during the emergence of insects from various orders (Ephemeroptera, Odonata, Trichoptera, and Diptera) into adjacent terrestrial ecosystems, are presented. The transfer of wet biomass from water to land is 7.385 g/m² per year and, in dry weight, 2.216 g/m² per year; transfer of the main nutrients is carbon, 1.21 g/m² per year; nitrogen, 0.25 g/m² per year; and phosphorus, 0.03 g/m² per year. PUFA transfer is 24.16 kg/km² per year.

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森林草原条件下Khoper河谷上游老海狸池中两栖昆虫的出现

摘要本文介绍了上霍珀尔盆地Privolzhskaya Lesostep自然保护区尤日纳亚河老海狸池中两栖昆虫出现的研究结果。给出了8目34科昆虫的丰度、生物量和发生频率参数;指出了它们在池塘不同部位出现的时间。鉴定出的优势种和常见种有:鸣蠓(Paramerina cingulata, Walk.)和银纹蟋蟀(criotopus silvestris, F.)、蠓(Bezzia bicolor, Mg.)、蠓(Chaoborus flavicans, Mg.)和五月蝇(Cloeon inscriptum, Bgtss.)。出虫强度为12.10只/m2 / d;平均每日生物量转移量为49.23 mg/m2 /天。对两栖昆虫成虫的脂肪酸组成及主要生物源元素含量进行了分析。本文给出了不同目昆虫(蜉蝣目、食翅目、毛翅目和双翅目)进入邻近陆地生态系统过程中能量和物质转移的计算结果，包括生物源元素(碳、磷、氮)和多不饱和脂肪酸(PUFAs)。湿生物质从水中向陆地的转移量为7.385 g/m2 /年，干重为2.216 g/m2 /年;主要营养物质的转移是碳，每年1.21 g/m2;氮气，0.25 g/m2 /年;磷，每年0.03克/平方米。PUFA的转移量为每年24.16公斤/平方公里。

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

Contemporary Problems of Ecology 环境科学-生态学

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Contemporary Problems of Ecology is a multidisciplinary periodical that publishes original works on the following subjects: theoretical and methodical issues of ecology, regional aspects of ecology, regional ecological disasters, structure and functioning of ecosystems, anthropogenic transformation of ecosystems. All basic aspects of modern ecology, including the most complicated interactions between living organisms and their environment, are presented. Some of the journal issues are dedicated to global changes in biological diversity at various levels of organization (populations, species, ecosystems) principles and methods of nature conservation.