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Analysis of institutional authors

Rico, EugenioAuthorFernandez-Valiente, EduardoAuthorQuesada, AntonioAuthor

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June 23, 2025
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Top-down vs. bottom-up effects on the planktonic microbial food web of a maritime Antarctic lake

Publicated to: Polar Biology. 48 (3): 78- - 2025-09-01 48(3), DOI: 10.1007/s00300-025-03391-9

Authors:

Camacho, A; Rochera, C; Rico, E; Fernández-Valiente, E; Vincent, WF; Quesada, A
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Affiliations

Univ Autonoma Madrid, Dept Biol, Madrid, Spain - Author
Univ Autonoma Madrid, Dept Ecol, Madrid, Spain - Author
Univ Laval, Ctr Northern Studies CEN, Takuvik, Quebec City, PQ, Canada - Author
Univ Laval, Dept Biol, Quebec City, PQ, Canada - Author
Univ Valencia, Cavanilles Inst Biodivers & Evolutionary Biol, Valencia, Spain - Author
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Abstract

This study evaluated the influence of nutrient (bottom-up) and biological (top-down) controls on the planktonic microbial food web of Lake Limnopolar, an oligotrophic lake in maritime Antarctica. Using a factorial experiment, we manipulated nutrient levels (nitrogen and phosphorus) and macrozooplankton abundance (absence/presence, and abundance increased by 30x) to simulate environmental variations. Nutrient additions led to moderate phytoplankton growth in the absence of zooplankton, indicating nutrient limitation. The presence of zooplankton enhanced algal growth, favoured chlorophytes over diatoms, and significantly increased bacterial abundance while reducing particularly ciliates. These results indicate a cascading effect typical of biological control and they highlight the role of biotic interactions, even in extreme environments where abiotic factors are thought to dominate. Understanding biological controls in such extreme environments is essential, as it underscores the complexity of ecosystem functioning in the polar regions, which are increasingly seen as early indicators of global change.
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Keywords

<italic>boeckella poppei</italicAntarcticaBacterioplanktoBiotic controlBoeckella poppeiByers peninsulaCopepodDry valley lakesDynamicsFresh-water ecosystemsLivingston islandMicrobial loopPhosphorus deficiencyPhytoplanktonPicoplanktonPredationProtistsTrophic cascades

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal POLAR BIOLOGY due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category Agricultural and Biological Sciences (Miscellaneous). Notably, the journal is positioned en el Cuartil Q3 for the agency WoS (JCR) in the category Biodiversity Conservation.

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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-01:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 2 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Canada.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: Last Author (QUESADA DEL CORRAL, ANTONIO).

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Awards linked to the item

This work was supported by grant CGL2005-06549-C02-02/ANT to AC, funded by the Spanish Ministry of Education and Science with European FEDER funds. Latest work by AQ was additionally supported by project PID2020-116520RB-100. We are very grateful for the logistic help and support from the UTM-CSIC and from the Las Palmas crew (Armada Espanola) that made possible this expedition.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This study was funded by Spanish Ministry of Education and Science (Grant No.: CGL2005-06549-C02-02/ANT), and partly co-funded by Agencia Estatal de Investigacion (Grant No.: PID2020-116520RB-100)
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