A survey of cyathostomins was carried out in working horses from Romania, from where the data of horse small strongyle infections was scanty.
Twenty four species were identified.
Most species showed high organ preference with a niche breadth value between 1 and 1.96, while only 7 species showed a more generalist selection.
The niche breadth of some species was positively or negatively influenced by the summed intensity of the other species.
The cluster analysis of the Cyathostomin community showed a major cluster composed by the three dominant species, followed by a cluster composed by Coronocyclus coronatus, while all the other species presented a tree like structure.