In U. reflexa traps, animals from different taxonomic groups
were identified: rotifers, nematodes and arthropods, including
crustaceans (ostracods) and arachnids (mites). There were also
numerous partially digested remains of animals that could not be
determined. Living protozoa dominated by Vorticella sp. and P. bursaria
were found in the live traps (Fig. 2a). P. bursaria reproduced