Distribution of benthic testate amoeba assemblages along a water depth gradient in freshwater lakes of the Meshchera Lowlands, Russia, and utility of the microfossils for inferring past lake water level

ИР автоматически получен из ЭБС Scoupus
Категория: биология, география
Авторы (ПГУ): Малышева Елена Александровна [100]  , Цыганов Андрей Николаевич [0]  
Аннотация: Testate amoebae are important components of benthic communities in freshwater lakes, where they play an essential role in decomposer food webs. They are used widely in paleoecological investigations because of their high taxonomic diversity, well-defined ecological preferences and decay-resistant tests. Studies of testate amoeba assemblages in lake surface sediments are necessary to better understand lake ecosystem function and improve the use of these organisms as bio-indicators in paleoecology. This study explored the use of testate amoebae as proxies for inferring past water level in freshwater lakes, and expanded upon the limited body of research into lake testate amoebae in Russia. Our results indicate that species composition of testate amoeba assemblages in the lakes was typical for such biotopes, with most of the species belonging to the genera Difflugia, Centropyxis, Arcella and Euglypha. Analysis of variation of testate amoebae along a water-depth gradient showed that three assemblage types could be distinguished: shallow-water (0–4.5 m), intermediate-water-depth (4.5–20.5) and deep-water (20.5–33 m). Deep-water assemblages did not contain any unique taxa and were dominated by eurybiotic and planktonic species. Species diversity was highest in the intermediate-water-depth assemblages and lowest in deep-water ones. Although variations in testate amoeba assemblages across water depth in freshwater lakes are complex and context-dependent, there are clear patterns in species composition and diversity, which can be used to infer past lake water levels. Future studies on the effect of water depth on testate amoeba assemblages in diverse types of freshwater lakes should increase the utility of the method.
Тип: Статья
Вид: электронная копия бумажного издания
Количество частей: 1
Год издания: 2019
Издательство: Springer
Где опубликовано: Зарубежный журнал
Место опубликования: Journal of Paleolimnology
Целевая аудитория: Исследователь, Преподаватель
Целевое назначение: Научное
Отрасль науки: 03.02.08 Экология (по отраслям)
Лицензия: Нет ограничений
Ограничения: Нет ограничений
Правообладатель: Издательство: Kluwer Academic Publishers Springer Netherlands
ISSN: Online ISSN 1573-0417, Print ISSN 0921-2728
DOI: 10.1007/s10933-019-00080-6
Импакт-фактор журнала (SJR): 2.009
Библиографическая ссылка: Tsyganov A.N., Malysheva E.A., Zharov A.A., Sapelko T.V. , Mazei Yu.A. Distribution of benthic testate amoeba assemblages along a water depth gradient in freshwater lakes of the Meshchera Lowlands, Russia, and utility of the microfossils for inferring past lake water level //Journal of Paleolimnology, 2019, Vol. 62, pp 137-150; doi:10.1007/s10933-019-00080-6
Страницы (с ... по ...): 137-150
Том: Vol. 62
Внешняя веб-ссылка: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85066063325&origin=inward
Язык: Английский
Место хранения:Вне ПГУ
Дата размещения:26.10.2019
Владелец:Малышева Елена Александровна
Ссылка на ресурс:
http://elib.pnzgu.ru/library/1572117954