There is hardly any sunshine exposed surface on this Earth, be it water or terrain, which
would not support some biota. Still, many habitats offer harsh conditions requiring …

Seasonal dynamics of all major protozoan groups were investigated in the plankton of the
River Danube, upstream of Budapest (Hungary), by bi-weekly sampling over a 1-year long …

According to resource allocation theory, animals face a trade off between the allocation of
resources into reproduction and into individual growth/maintenance. This trade off is …

Heliozoans are ambush protists that inhabit most limnetic systems. However, ecological
information about planktonic heliozoans is still limited. In this study, we investigated …

Extreme habitats often harbor specific communities that differ substantially from non-extreme
habitats. In many cases, these communities are characterized by archaea, bacteria and …

Flagellates are important bacterial grazers in most planktonic food webs. The prey-size
preference of the mixotrophic flagellate, Ochromonas sp.(Chrysophyceae), isolated from an …

Predicting the effects of dissolved organic matter (DOM) on pelagic food webs can be
difficult because DOM modifies water column optics and can have contrasting effects on …

Predation is a well-known factor that structures rotifer communities. However, the role of
protists as predators is relatively understudied. Here, we investigated predatory behavior of …

We quantified the population growth of the predatory heliozoan Actinosphaerium eichhornii
fed separately four rotifer prey (Anuraeopsis fissa, Brachionus calyciflorus, Brachionus …

Summary 1 Mixotrophic organisms can combine two functionally different modes of nutrition
to acquire carbon:(i) by using photosynthesis for inorganic carbon fixation; and (ii) by taking …