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Laboratoire d'Océanographie Microbienne
UMR 7621



Dr Sara Beier

Associated scientist


Institute for Baltic Sea Research Warnemünde, Germany


Laboratoire d'Océanographie Microbienne (LOMIC) - UMR 7621 CNRS-SU

Avenue Pierre Fabre - 66650 Banyuls-sur-Mer - France


E-mail: sara.beier @



I am microbial ecologist and my work focuses on scrutinizing the functional response of microbial communities or individual community members on environmental changes. During recent research activities I have addressed niche-separation, species interactions and the response of community members with different life-strategies after experimental manipulations.

The focus of my current research project is on structure-function relationships that influence the community response after environmental disturbances. For this purpose I am using meta-omic data to assess community structures beyond diversity measures, such as the proportion of community members with distinct life history strategies.

My project is funded by the German Research Foundation (DFG) at the Leibniz institute for Baltic Sea Research Warnemuende and will be performed in collaboration with French partner groups (MARBEC, LOMIC).

The Baltic Sea as well as coastal lagoons in South France (Languedoc-Roussillon Region) provide sites that are characterized by either very stable or highly unstable environmental conditions, particularly concerning their salinity. Samples from these sites will serve to compare the genetic composition and the response of microbial communities directly or after exposure to new disturbances.



Sampling at the mouth of the Warnow River into the Baltic Sea, Germany


Sampling at the Ayrolle Lagoon, France


Selected Publications

  • Rain-Franco A, Peter H, Pavan de Moraes G, Beier S. 2024. The cost of adaptability: resource availability constrains functional stability under pulsed disturbances. mSphere 9:e00727-23.
  • Beier S, Werner J, Bouvier T, Mouquet N, Violle C. 2022. Trait-trait relationships and tradeoffs vary with genome size in prokaryotes. Front Microbiol 13.
  • Rain-Franco A, Mouquet N, Gougat-Barbera C, Bouvier T, Beier S. 2022. Niche breadth affects bacterial transcription patterns along a salinity gradient. Mol Ecol 31:1216–1233.
  • Rain-Franco A, de Moraes GP, Beier S. 2021. Cryopreservation and Resuscitation of Natural Aquatic Prokaryotic Communities. Front Microbiol 11.
  • Shen D, Jürgens K, Beier S. 2018. Experimental insights into the importance of ecologically dissimilar bacteria to community assembly along a salinity gradient. Environ Microbiol 20:1170–1184.
  • Beier S, Shen D, Schott T, Jürgens K (2017) Metatranscriptomic data reveal the effect of different community properties on multifunctional redundancy. Mol Ecol 26:6813–6826.


Traductions :

    Le LOMIC en chiffres

    8 Chercheurs CNRS
    3 Enseignant-chercheurs

    1 Chercheuse accueillie

    9 Tech/Ingénieurs

    2 Post doctorants

    2 CDD Ingénieur
    12 Etudiants en thèse