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Article

Diatoms from the Spring Ecosystems Selected for the Long-Term Monitoring of Climate-Change Effects in the Berchtesgaden National Park (Germany)

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MUSE—Museo delle Scienze, Research & Collections Department (Limnology & Phycology), Corso del Lavoro e della Scienza 3, 38123 Trento, Italy
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Department of Biological, Geological and Environmental Sciences—BiGeA, Alma Mater Studiorum University of Bologna, Via Irnerio 42, 40126 Bologna, Italy
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Institute of Hydrobiology of NAS of Ukraine, Geroiv Stalingrada 12, 04210 Kyiv, Ukraine
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Emilia-Romagna Region, Geological, Seismic & Soil Survey, Viale della Fiera, 8, 40127 Bologna, Italy
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Klima-Zentrum, Bayerisches Landesamt für Umwelt, Hans-Högn-Straße 12, 95030 Hof/Saale, Germany
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Department of Evolution and Ecology, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 28E, 72076 Tübingen, Germany
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Botany Department, Faculty of Science, Ain Shams University, Abbassia Square, Cairo 11566, Egypt
*
Author to whom correspondence should be addressed.
Academic Editor: Rafael J. Bergillos
Water 2022, 14(3), 381; https://doi.org/10.3390/w14030381
Received: 31 December 2021 / Revised: 23 January 2022 / Accepted: 24 January 2022 / Published: 27 January 2022
We studied diatoms from the fifteen springs selected in the Berchtesgaden National Park on behalf of the Bavarian State Ministry for the Environment to be sentinel environments of climate-change effects. For three of these springs, diatom data based on samples taken in 1997 were also available. A total of 162 species belonging to 49 genera were found sampling three microhabitat types (lithic materials, bryophytes, surface sediments). The cumulative percentage of all species included in a threat category including endangered species was 43%, confirming previous findings for comparable environments of the Alps. We could find a statistically significant positive association between the Meinzer variability index for discharge and the cumulative relative abundance of aerial diatom species. This study thus highlighted once again the relevance of discharge (and associated water-level) variability as an environmental determinant of diatom assemblages in spring ecosystems. Increased nitrate concentrations in some springs, likely due to diffuse airborne pollution and, locally, to impacts such as forest management, game, and cattle, led to a relevant occurrence of eutraphentic diatom species. Our results show a segregation of the older data in non-parametric diatom-based ordinations, suggesting a strong potential for the use of spring diatoms in studies aiming at tracking the effects of climate and environmental change. View Full-Text
Keywords: diatoms; springs; ecological characteristics; climate-change effects; discharge variability; Berchtesgaden National Park; North-eastern Alps diatoms; springs; ecological characteristics; climate-change effects; discharge variability; Berchtesgaden National Park; North-eastern Alps
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MDPI and ACS Style

Cantonati, M.; Bilous, O.; Spitale, D.; Angeli, N.; Segadelli, S.; Bernabè, D.; Lichtenwöhrer, K.; Gerecke, R.; Saber, A.A. Diatoms from the Spring Ecosystems Selected for the Long-Term Monitoring of Climate-Change Effects in the Berchtesgaden National Park (Germany). Water 2022, 14, 381. https://doi.org/10.3390/w14030381

AMA Style

Cantonati M, Bilous O, Spitale D, Angeli N, Segadelli S, Bernabè D, Lichtenwöhrer K, Gerecke R, Saber AA. Diatoms from the Spring Ecosystems Selected for the Long-Term Monitoring of Climate-Change Effects in the Berchtesgaden National Park (Germany). Water. 2022; 14(3):381. https://doi.org/10.3390/w14030381

Chicago/Turabian Style

Cantonati, Marco, Olena Bilous, Daniel Spitale, Nicola Angeli, Stefano Segadelli, Dimitri Bernabè, Kurt Lichtenwöhrer, Reinhard Gerecke, and Abdullah A. Saber. 2022. "Diatoms from the Spring Ecosystems Selected for the Long-Term Monitoring of Climate-Change Effects in the Berchtesgaden National Park (Germany)" Water 14, no. 3: 381. https://doi.org/10.3390/w14030381

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