Mysterious ciliates: seasonally recurrent and yet hard to predict
Abstract Ciliates represent a crucial link between phytoplankton and bacteria and mesozooplankton in pelagic food webs, but little is known about the processes influencing the dynamics of individual species. Using long-term, high-frequency observations, we compared the diversity and the temporal var...
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Online Access: | http://dx.doi.org/10.1093/plankt/fbac043 https://academic.oup.com/plankt/article-pdf/44/6/891/47210432/fbac043.pdf |
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croxfordunivpr:10.1093/plankt/fbac043 2023-05-15T18:49:43+02:00 Mysterious ciliates: seasonally recurrent and yet hard to predict Kath, Nadja J Thomas, Mridul K Gaedke, Ursula Dolan, John Deutsche Forschungsgemeinschaft 2022 http://dx.doi.org/10.1093/plankt/fbac043 https://academic.oup.com/plankt/article-pdf/44/6/891/47210432/fbac043.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Journal of Plankton Research volume 44, issue 6, page 891-910 ISSN 0142-7873 1464-3774 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2022 croxfordunivpr https://doi.org/10.1093/plankt/fbac043 2022-12-29T15:32:04Z Abstract Ciliates represent a crucial link between phytoplankton and bacteria and mesozooplankton in pelagic food webs, but little is known about the processes influencing the dynamics of individual species. Using long-term, high-frequency observations, we compared the diversity and the temporal variability in biomass and species composition of the ciliate community in large, deep, mesotrophic Lake Constance to that of the phytoplankton and rotifer communities in the same lake. Furthermore, we used boosted regression trees to evaluate possible environmental predictors (temperature, three prey groups, four predator/competitor groups) influencing ciliate net growth. The biomass of all ciliate species showed a common, recurrent seasonal pattern, often with peaks in spring and summer. The ciliate community was more diverse than the rotifer community, exhibited highly synchronous dynamics and its species were regularly encountered during the season. The top-down control by copepods likely contributes to the ciliates’ synchronized decline prior to the clear-water phase when food concentration is still high. The high temporal autocorrelation of the ciliate biomasses together with the inter-annual recurrent seasonal patterns and the low explanatory power of the environmental predictors suggest that the dynamics of individual ciliate species are strictly controlled, yet it remains difficult to determine the responsible factors. Article in Journal/Newspaper Copepods Rotifer Oxford University Press (via Crossref) Journal of Plankton Research |
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Open Polar |
collection |
Oxford University Press (via Crossref) |
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croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Kath, Nadja J Thomas, Mridul K Gaedke, Ursula Mysterious ciliates: seasonally recurrent and yet hard to predict |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Ciliates represent a crucial link between phytoplankton and bacteria and mesozooplankton in pelagic food webs, but little is known about the processes influencing the dynamics of individual species. Using long-term, high-frequency observations, we compared the diversity and the temporal variability in biomass and species composition of the ciliate community in large, deep, mesotrophic Lake Constance to that of the phytoplankton and rotifer communities in the same lake. Furthermore, we used boosted regression trees to evaluate possible environmental predictors (temperature, three prey groups, four predator/competitor groups) influencing ciliate net growth. The biomass of all ciliate species showed a common, recurrent seasonal pattern, often with peaks in spring and summer. The ciliate community was more diverse than the rotifer community, exhibited highly synchronous dynamics and its species were regularly encountered during the season. The top-down control by copepods likely contributes to the ciliates’ synchronized decline prior to the clear-water phase when food concentration is still high. The high temporal autocorrelation of the ciliate biomasses together with the inter-annual recurrent seasonal patterns and the low explanatory power of the environmental predictors suggest that the dynamics of individual ciliate species are strictly controlled, yet it remains difficult to determine the responsible factors. |
author2 |
Dolan, John Deutsche Forschungsgemeinschaft |
format |
Article in Journal/Newspaper |
author |
Kath, Nadja J Thomas, Mridul K Gaedke, Ursula |
author_facet |
Kath, Nadja J Thomas, Mridul K Gaedke, Ursula |
author_sort |
Kath, Nadja J |
title |
Mysterious ciliates: seasonally recurrent and yet hard to predict |
title_short |
Mysterious ciliates: seasonally recurrent and yet hard to predict |
title_full |
Mysterious ciliates: seasonally recurrent and yet hard to predict |
title_fullStr |
Mysterious ciliates: seasonally recurrent and yet hard to predict |
title_full_unstemmed |
Mysterious ciliates: seasonally recurrent and yet hard to predict |
title_sort |
mysterious ciliates: seasonally recurrent and yet hard to predict |
publisher |
Oxford University Press (OUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1093/plankt/fbac043 https://academic.oup.com/plankt/article-pdf/44/6/891/47210432/fbac043.pdf |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_source |
Journal of Plankton Research volume 44, issue 6, page 891-910 ISSN 0142-7873 1464-3774 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/plankt/fbac043 |
container_title |
Journal of Plankton Research |
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1766243322975748096 |