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Temperature and species richness effects in phytoplankton communities
Phytoplankton play an important role as primary producers and thus can affect higher trophic levels. Phytoplankton growth and diversity may, besides other factors, be controlled by seasonal temperature changes and increasing water temperatures. In this study, we investigated the combined effects of...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer-Verlag
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3548109/ https://www.ncbi.nlm.nih.gov/pubmed/22847329 http://dx.doi.org/10.1007/s00442-012-2419-4 |
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author | Schabhüttl, Stefanie Hingsamer, Peter Weigelhofer, Gabriele Hein, Thomas Weigert, Achim Striebel, Maren |
author_facet | Schabhüttl, Stefanie Hingsamer, Peter Weigelhofer, Gabriele Hein, Thomas Weigert, Achim Striebel, Maren |
author_sort | Schabhüttl, Stefanie |
collection | PubMed |
description | Phytoplankton play an important role as primary producers and thus can affect higher trophic levels. Phytoplankton growth and diversity may, besides other factors, be controlled by seasonal temperature changes and increasing water temperatures. In this study, we investigated the combined effects of temperature and diversity on phytoplankton growth. In a controlled laboratory experiment, monocultures of 15 freshwater phytoplankton taxa (green algae, cyanobacteria, and diatoms) as well as 25 mixed communities of different species richness (2–12 species) and taxa composition were exposed to constant temperatures of 12, 18, and 24 °C. Additionally, they were exposed to short-term daily temperature peaks of +4 °C. Increased species richness had a positive effect on phytoplankton growth rates and phosphorous content at all temperature levels, with maximum values occurring at 18 °C. Overyielding was observed at almost all temperature levels and could mostly be explained by complementary traits. Higher temperatures resulted in higher fractions of cyanobacteria in communities. This negative effect of temperature on phytoplankton diversity following a shift in community composition was most obvious in communities adapted to cooler temperatures, pointing to the assumption that relative temperature changes may be more important than absolute ones. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00442-012-2419-4) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-3548109 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Springer-Verlag |
record_format | MEDLINE/PubMed |
spelling | pubmed-35481092013-01-18 Temperature and species richness effects in phytoplankton communities Schabhüttl, Stefanie Hingsamer, Peter Weigelhofer, Gabriele Hein, Thomas Weigert, Achim Striebel, Maren Oecologia Ecosystem ecology - Original research Phytoplankton play an important role as primary producers and thus can affect higher trophic levels. Phytoplankton growth and diversity may, besides other factors, be controlled by seasonal temperature changes and increasing water temperatures. In this study, we investigated the combined effects of temperature and diversity on phytoplankton growth. In a controlled laboratory experiment, monocultures of 15 freshwater phytoplankton taxa (green algae, cyanobacteria, and diatoms) as well as 25 mixed communities of different species richness (2–12 species) and taxa composition were exposed to constant temperatures of 12, 18, and 24 °C. Additionally, they were exposed to short-term daily temperature peaks of +4 °C. Increased species richness had a positive effect on phytoplankton growth rates and phosphorous content at all temperature levels, with maximum values occurring at 18 °C. Overyielding was observed at almost all temperature levels and could mostly be explained by complementary traits. Higher temperatures resulted in higher fractions of cyanobacteria in communities. This negative effect of temperature on phytoplankton diversity following a shift in community composition was most obvious in communities adapted to cooler temperatures, pointing to the assumption that relative temperature changes may be more important than absolute ones. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00442-012-2419-4) contains supplementary material, which is available to authorized users. Springer-Verlag 2012-08-01 2013 /pmc/articles/PMC3548109/ /pubmed/22847329 http://dx.doi.org/10.1007/s00442-012-2419-4 Text en © The Author(s) 2012 https://creativecommons.org/licenses/by/4.0/ This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
spellingShingle | Ecosystem ecology - Original research Schabhüttl, Stefanie Hingsamer, Peter Weigelhofer, Gabriele Hein, Thomas Weigert, Achim Striebel, Maren Temperature and species richness effects in phytoplankton communities |
title | Temperature and species richness effects in phytoplankton communities |
title_full | Temperature and species richness effects in phytoplankton communities |
title_fullStr | Temperature and species richness effects in phytoplankton communities |
title_full_unstemmed | Temperature and species richness effects in phytoplankton communities |
title_short | Temperature and species richness effects in phytoplankton communities |
title_sort | temperature and species richness effects in phytoplankton communities |
topic | Ecosystem ecology - Original research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3548109/ https://www.ncbi.nlm.nih.gov/pubmed/22847329 http://dx.doi.org/10.1007/s00442-012-2419-4 |
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