Ecological and faunistic analysis of helminths in wetland birds of Baikal Siberia: 4. Gaviidae, Phalacrocoracidae, Ardeidae, Podicipedidae, Rallidae

The article analyzes the species composition of helminths of 8 bird species from Gaviidae (Gavia stellata, Gavia arctica), Phalacrocoracidae (Phalacrocorax carbo), Ardeidae (Ardea cinerea), Podicipedidae (Podiceps cristatus, Podiceps nigricollis, Podiceps auritus) and Rallidae (Fulica atra) families. The total volume of material is small - 94 birds have been dissected. The sampling is presented predominantly by the great crested grebe and the common coot, the rest of species is represented by 2 to 7 individuals. We have identified 46 types of helminths in the great crested grebe: 13 types of cestodes, 25 types of trematodes, 6 types of nematodes, and 2 types of acanthocephala. 11 types of parasites have been found in the common coot: cestodes - 3, trematodes - 3, nematodes - 1, acanthocephala - 4. Bird parasites are mainly presented by cestodes and trematodes, the share of nematodes is far smaller. The studied groups of birds are infected by acanthocephala less frequently. Only in the common coot the share of acanthocephala in relation to other classes of helminths was higher. We have established that some of the helminth species are specific for various groups of birds. Many species of waterland birds in parasitological terms remain poorly studied. First of all, we should pay attention to the numerous and common species of birds in Baikal Siberia.