The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)

The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)

Studies on snail communities in nine dam reservoirs in Upper Silesia were carried out in two periods: 1980–90 and 1995–2004. The observed changes referred to domination patterns. There was found that after introduction of two alien gastropods Physella acuta and Potamopyrgus antipodarum they became t...

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Main Authors: Małgorzata Strzelec, Aneta Spyra, Mariola Krodkiewska, Włodzimierz Serafiński
Format: Article
Language:ces
Published: Department of Botany and Zoology, Faculty of Science, Masaryk University 2005-12-01
Series:Malacologica Bohemoslovaca
Online Access:http://mollusca.sav.sk/pdf/4/4.Strzelec2.pdf
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spelling doaj-74f2904249874f74aef609d2fbd2c8492021-08-17T15:49:12ZcesDepartment of Botany and Zoology, Faculty of Science, Masaryk UniversityMalacologica Bohemoslovaca1336-69392005-12-014414710.5817/MaB2005-4-41The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)Małgorzata Strzelec0https://orcid.org/0000-0002-1347-7866Aneta Spyra1Mariola Krodkiewska2Włodzimierz Serafiński3Department of Hydrobiology, University of Silesia, Bankowa 9, P- 40-007 Katowice, PolandDepartment of Hydrobiology, University of Silesia, Bankowa 9, P- 40-007 Katowice, PolandDepartment of Hydrobiology, University of Silesia, Bankowa 9, P- 40-007 Katowice, PolandDepartment of Hydrobiology, University of Silesia, Bankowa 9, P- 40-007 Katowice, PolandStudies on snail communities in nine dam reservoirs in Upper Silesia were carried out in two periods: 1980–90 and 1995–2004. The observed changes referred to domination patterns. There was found that after introduction of two alien gastropods Physella acuta and Potamopyrgus antipodarum they became the dominants in four reservoirs by the simultaneous percentage decrease of earlier native dominants. The species density decreased in second study period in five reservoirs, mainly in effect of alien species invasion, but in some cases in consequence of various human interventions. Taking into account the whole collection the commonest species in the first study period were Radix peregra and Planorbis planorbis, while Radix peregra, Potamopyrgus antipodarum, and Physella acuta in the second. Inexplicable is however the mass occurrence of Valvata piscinalis in Żywiecki dam reservoir, because in whole Soutern Poland it is one of rarest snail species both in rivers and stagnant water bodies.http://mollusca.sav.sk/pdf/4/4.Strzelec2.pdf
collection DOAJ
language ces
format Article
sources DOAJ
author Małgorzata Strzelec
Aneta Spyra
Mariola Krodkiewska
Włodzimierz Serafiński
spellingShingle Małgorzata Strzelec
Aneta Spyra
Mariola Krodkiewska
Włodzimierz Serafiński
The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)
Malacologica Bohemoslovaca
author_facet Małgorzata Strzelec
Aneta Spyra
Mariola Krodkiewska
Włodzimierz Serafiński
author_sort Małgorzata Strzelec
title The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)
title_short The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)
title_full The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)
title_fullStr The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)
title_full_unstemmed The long-term transformations of Gastropod communities in dam-reservoirs of Upper Silesia (Southern Poland)
title_sort long-term transformations of gastropod communities in dam-reservoirs of upper silesia (southern poland)
publisher Department of Botany and Zoology, Faculty of Science, Masaryk University
series Malacologica Bohemoslovaca
issn 1336-6939
publishDate 2005-12-01
description Studies on snail communities in nine dam reservoirs in Upper Silesia were carried out in two periods: 1980–90 and 1995–2004. The observed changes referred to domination patterns. There was found that after introduction of two alien gastropods Physella acuta and Potamopyrgus antipodarum they became the dominants in four reservoirs by the simultaneous percentage decrease of earlier native dominants. The species density decreased in second study period in five reservoirs, mainly in effect of alien species invasion, but in some cases in consequence of various human interventions. Taking into account the whole collection the commonest species in the first study period were Radix peregra and Planorbis planorbis, while Radix peregra, Potamopyrgus antipodarum, and Physella acuta in the second. Inexplicable is however the mass occurrence of Valvata piscinalis in Żywiecki dam reservoir, because in whole Soutern Poland it is one of rarest snail species both in rivers and stagnant water bodies.
url http://mollusca.sav.sk/pdf/4/4.Strzelec2.pdf
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