Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristics

One third of species of Eastern Ukraine’s mayfly fauna develop in coldwater watercourses of Donetsk Elevated Area. Ten species develop in rhithral streams of area and only two in crenal ones. A number of species are presented in area by the populations isolated from main parts of them areals (A...

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Main Author: A.V. Martynov
Format: Article
Language:English
Published: Southern Scientific Centre of the Russian Academy of Science, Federal state budgetary institution 2014-06-01
Series:Кавказский энтомологический бюллетень
Subjects:
Online Access:http://www.ssc-ras.ru/files/files/1_%20Martynov.pdf
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author A.V. Martynov
author_facet A.V. Martynov
author_sort A.V. Martynov
collection DOAJ
description One third of species of Eastern Ukraine’s mayfly fauna develop in coldwater watercourses of Donetsk Elevated Area. Ten species develop in rhithral streams of area and only two in crenal ones. A number of species are presented in area by the populations isolated from main parts of them areals (Alainites muticus, Serratella ignita). Areal of Ecdyonurus dispar gratificus is limited by the area under investigation, where the larvae of this species inhabit pure rhithral watercourses mainly. Larvae of the species which inhabit rhithral zone of region’s streams, are attributed to four types of ecomorphs and take part in formation of different types of the communities. Larvae of each species demonstrate their own stational preferences, which depend on their ecomorphological characteristics. Quantitative ratio of mayflies’ larvae of different species and their types of ecomorphs change considerably during the year. Competition between the species which prefer the same microstations is reduced due to displaced life cycles. In the result, the maximums of biomass and population size of these species are almost never observed simultaneously. Considering that the anthropogenic changes and pollution of rhithral zone of model watercourses is almost absent, their mayfly species composition, the change of quantitative ratio of different species’ larvae during a year, the features of stational distribution and the structure of communities could be considered as model ones in indicative researches on the rhithral zone of Donetsk Elevated area
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spelling doaj.art-b401e414b00b4e2e8b3901b22bed48012023-12-03T12:46:46ZengSouthern Scientific Centre of the Russian Academy of Science, Federal state budgetary institutionКавказский энтомологический бюллетень1814-33261814-33262014-06-01101318DOI:10.23885/1814-3326-2014-10-1-3-18Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristicsA.V. Martynov0National Museum of Natural History at the National Academy of Sciences of UkraineOne third of species of Eastern Ukraine’s mayfly fauna develop in coldwater watercourses of Donetsk Elevated Area. Ten species develop in rhithral streams of area and only two in crenal ones. A number of species are presented in area by the populations isolated from main parts of them areals (Alainites muticus, Serratella ignita). Areal of Ecdyonurus dispar gratificus is limited by the area under investigation, where the larvae of this species inhabit pure rhithral watercourses mainly. Larvae of the species which inhabit rhithral zone of region’s streams, are attributed to four types of ecomorphs and take part in formation of different types of the communities. Larvae of each species demonstrate their own stational preferences, which depend on their ecomorphological characteristics. Quantitative ratio of mayflies’ larvae of different species and their types of ecomorphs change considerably during the year. Competition between the species which prefer the same microstations is reduced due to displaced life cycles. In the result, the maximums of biomass and population size of these species are almost never observed simultaneously. Considering that the anthropogenic changes and pollution of rhithral zone of model watercourses is almost absent, their mayfly species composition, the change of quantitative ratio of different species’ larvae during a year, the features of stational distribution and the structure of communities could be considered as model ones in indicative researches on the rhithral zone of Donetsk Elevated areahttp://www.ssc-ras.ru/files/files/1_%20Martynov.pdfEphemeropteraEastern Ukrainerhithralcrenalstational distributioncommunitiesinterspecific competition
spellingShingle A.V. Martynov
Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristics
Кавказский энтомологический бюллетень
Ephemeroptera
Eastern Ukraine
rhithral
crenal
stational distribution
communities
interspecific competition
title Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristics
title_full Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristics
title_fullStr Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristics
title_full_unstemmed Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristics
title_short Mayflies (Ephemeroptera) of Rhithral and Crenal Zones of Donetsk Elevated Physiographic Area’s Watercourses (Eastern Ukraine): species composition, ecological characteristics
title_sort mayflies ephemeroptera of rhithral and crenal zones of donetsk elevated physiographic area s watercourses eastern ukraine species composition ecological characteristics
topic Ephemeroptera
Eastern Ukraine
rhithral
crenal
stational distribution
communities
interspecific competition
url http://www.ssc-ras.ru/files/files/1_%20Martynov.pdf
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