The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland

The aim of our research was to trace changes in the composition and structure of diatom communities and diatom ecological traits under the influence of drought. We also examined the impact of drought on the results of the Polish Diatom Index (IO) and the Indice de Polluo-Sensibilité Spécifique (IPS)...

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Autores principales:	Łukasz Peszek, Aleksandra Zgrundo, Teresa Noga, Natalia Kochman-Kędziora, Anita Poradowska, Mateusz Rybak, Czesław Puchalski, Janina Lee
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Diatom indices Reference assemblages Diatom guilds Climate change Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/540c30dce7f645a09470e38b02514c76
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spelling	oai:doaj.org-article:540c30dce7f645a09470e38b02514c762021-12-01T04:48:29ZThe influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland1470-160X10.1016/j.ecolind.2021.107579https://doaj.org/article/540c30dce7f645a09470e38b02514c762021-06-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21002442https://doaj.org/toc/1470-160XThe aim of our research was to trace changes in the composition and structure of diatom communities and diatom ecological traits under the influence of drought. We also examined the impact of drought on the results of the Polish Diatom Index (IO) and the Indice de Polluo-Sensibilité Spécifique (IPS), which is the most commonly used diatom index in European countries, as a preliminary assessment of how changes in watercourses during climate-change related drought affect environmental quality assessments. The studies were conducted on watercourses in an area devoid of significant anthropogenic pressures, i.e., the protected area of Magura National Park in the Carpathian Mountains, Poland. The chemical parameters and ecological condition based on diatom analysis permitted classifying the watercourses as having good and very good status. Drought periods had a significant impact on some water parameters such as electrolytic conductivity, pH, nitrogen compounds, chlorides, and sulfates. Changes in the composition and structure of diatom communities were observed; however, in larger watercourses they were much smaller than those in smaller watercourses of a higher order. During drought periods, the share of diatoms from the motile guild and terrestrial species increased significantly in the streams. Drought had positive effects on the increased biodiversity of benthic diatom communities. Diatom index values showed statistically significant differences between drought-free and drought periods. In the present study, the differences observed were small enough to not affect the final ecological status classification. However, given the significant increase in the abundance of motile species, which are often classified as indicators of pollution, we believe that in watercourses with lower ecological statuses the occurrence of motile taxa related to drought symptoms (e.g., low water current, formation of depository habitats) could have had an impact on lowering statuses during ecological water assessments.Łukasz PeszekAleksandra ZgrundoTeresa NogaNatalia Kochman-KędzioraAnita PoradowskaMateusz RybakCzesław PuchalskiJanina LeeElsevierarticleDiatom indicesReference assemblagesDiatom guildsClimate changeEcologyQH540-549.5ENEcological Indicators, Vol 125, Iss , Pp 107579- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Diatom indices Reference assemblages Diatom guilds Climate change Ecology QH540-549.5
spellingShingle	Diatom indices Reference assemblages Diatom guilds Climate change Ecology QH540-549.5 Łukasz Peszek Aleksandra Zgrundo Teresa Noga Natalia Kochman-Kędziora Anita Poradowska Mateusz Rybak Czesław Puchalski Janina Lee The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland
description	The aim of our research was to trace changes in the composition and structure of diatom communities and diatom ecological traits under the influence of drought. We also examined the impact of drought on the results of the Polish Diatom Index (IO) and the Indice de Polluo-Sensibilité Spécifique (IPS), which is the most commonly used diatom index in European countries, as a preliminary assessment of how changes in watercourses during climate-change related drought affect environmental quality assessments. The studies were conducted on watercourses in an area devoid of significant anthropogenic pressures, i.e., the protected area of Magura National Park in the Carpathian Mountains, Poland. The chemical parameters and ecological condition based on diatom analysis permitted classifying the watercourses as having good and very good status. Drought periods had a significant impact on some water parameters such as electrolytic conductivity, pH, nitrogen compounds, chlorides, and sulfates. Changes in the composition and structure of diatom communities were observed; however, in larger watercourses they were much smaller than those in smaller watercourses of a higher order. During drought periods, the share of diatoms from the motile guild and terrestrial species increased significantly in the streams. Drought had positive effects on the increased biodiversity of benthic diatom communities. Diatom index values showed statistically significant differences between drought-free and drought periods. In the present study, the differences observed were small enough to not affect the final ecological status classification. However, given the significant increase in the abundance of motile species, which are often classified as indicators of pollution, we believe that in watercourses with lower ecological statuses the occurrence of motile taxa related to drought symptoms (e.g., low water current, formation of depository habitats) could have had an impact on lowering statuses during ecological water assessments.
format	article
author	Łukasz Peszek Aleksandra Zgrundo Teresa Noga Natalia Kochman-Kędziora Anita Poradowska Mateusz Rybak Czesław Puchalski Janina Lee
author_facet	Łukasz Peszek Aleksandra Zgrundo Teresa Noga Natalia Kochman-Kędziora Anita Poradowska Mateusz Rybak Czesław Puchalski Janina Lee
author_sort	Łukasz Peszek
title	The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland
title_short	The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland
title_full	The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland
title_fullStr	The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland
title_full_unstemmed	The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland
title_sort	influence of drought on diatom assemblages in a temperate climate zone: a case study from the carpathian mountains, poland
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/540c30dce7f645a09470e38b02514c76
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The influence of drought on diatom assemblages in a temperate climate zone: A case study from the Carpathian Mountains, Poland

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