Roland Psenner

TL;DR: A model is suggested that divides freshwater bacterioplankton into 4 size ranges of different vulnerability to size-selective protistan grazing, which influenced the size structure of bacteriopLankton as well as the mean per-cell growth of the active bacterial fraction.

TL;DR: The community structure of pelagic microbial assemblages can be influenced by the taxonomic composition of the predator community, albeit to different extents.

TL;DR: In this paper, chemical and biological sedimentary records of a high alpine lake were used to reconstruct palaeoecological conditions and compared with two centuries of instrumental temperature measurements.

TL;DR: Investigating the role of protists, especially heterotrophic nanoflagellates (HNF), in microbial food webs during the summer phytoplankton bloom in the epilimnion and metalimnions of the eutrophic Rimov reservoir found no tight relationship between HNF and the concentration of bacteria and chlorophyll.

TL;DR: The grazlng unpact of 3 different protozoan specles on a muted bacter~al community was studled by means of a s ~ m p h i ~ e d and funct~onally reproducible expenmental m~crobial food web to reflect the potential of BC responses to different predation regimes and the advantages of phenotypic traits in order to coexlst with various grazers.