ECOLOGICAL ANALYSIS OF TREMATODES (TREMATODA) OF MARSH FROG PELOPHYLAX RIDIBUNDUS (RANIDAE, ANURA) FROM VARIOUS HABITATS OF THE NATIONAL PARK «SAMARSKAYA LUKA» (RUSSIA)
Journal Title: Nature Conservation Research. Заповедная наука - Year 2018, Vol 3, Issue 0
Abstract
A comparative analysis of the trematode fauna of the marsh frog Pelophylax ridibundus from different habitats of the National Park «Samarskaya Luka» is given. It is based on the authors' own materials collected in 1998‒2001 on three locations: on the coast of the Volga channel, floodplain lakes and nearby islands. Twenty-two trematode species were found. Differences in the composition of trematodes and the nature of infestation of amphibians from different biotopes have been revealed. It has been established that the diversity of trematodes and their infectivity are higher in amphibians in floodplain lakes with relatively constant environmental conditions. Frogs from river coast habitats with dynamic environmental conditions are less infected with the same diversity of species. Amphibians of isolated island habitats are characterised by relatively small number of trematode species and a low level of helminth invasion. The causes of differences in amphibian infestation by trematodes in different biotopes are complex. Diversity, high abundance of mollusks and arthropods (intermediate hosts) cause a high level of infestation of frogs with sexually mature flukes, transmitted through food chains. The high density of the amphibians themselves, and, accordingly, of the predators batrachophages, leads to intensive infestation of frogs by larval stages of trematodes. A literature review of the data on the influence of abiotic and biotic factors of the environment on amphibian trematode is given. The formation of the trematode fauna of frogs is influenced by a number of environmental factors acting in the aggregate: the hydrological regime of the reservoir, the diversity and density of populations of intermediate, reservoir and definitive hosts of trematodes in the biocoenosis.
Authors and Affiliations
Igor V. Chikhlyaev, Nadezhda Yu. Kirillova, Alexander A. Kirillov
Keywords
Related Articles
- EP ID EP493003
- DOI 10.24189/ncr.2018.039
- Views 74
- Downloads 0
CHANGES IN THE VASCULAR FLORA OF KHATANGA VILLAGE AND ITS SURROUNDING AREA, TAYMYRSKY BIOSPHERE RESERVE, OVER A LONG PERIOD
The results of the floristic survey of Khatanga surroundings are given. A comparison of the flora's current state with the earlier changes in 1905–1955 and with data of regional floras is conducted. There are 58 species...
OVERVIEW OF HELMINTHS IN SMALL MAMMALS IN THE ZHIGULI STATE RESERVE
Helminths from a total of 24 species of small mammals, representing three orders (Insectivora, Chiroptera, Rodentia) were examined in Zhiguli State Reserve (Russia). 90 species of helminthes were identified: Trematoda –...
PECULIARITIES OF THE IMAGO COLEOPTERA (INSECTA) GROUPS OVERWINTERING IN VARIOUS SUBSTRATA OF THE RESERVE «GALICHYA GORA»
During the 1997–2006 and 2010–2011winter seasons, in the area of Morozova Gora (the nature reserve "Galichya Gora"), in Russia, 1200 samples of various substrata were taken, most of which were 4500 cm3 in volume. In tota...
SPECIES DIVERSITY AND SUCCESSIONAL DYNAMICS IN THE SECONDARY FOREST OF OBAFEMI AWOLOWO UNIVERSITY BIOLOGICAL GARDENS ILE-IFE, NIGERIA
Forests worldwide are being continuously disturbed by human activities and natural events, and tropical rainforest disturbance is specifically pronounced as indicated by its low biodiversity status. This study examined t...
THE ZOOBENTHOS COMMUNITIES OF STREAMS IN THE KATON-KARAGAI STATE NATIONAL NATURAL PARK (THE BUKHTARMA RIVER BASIN, KAZAKHSTAN)
The article presents the results of a study of zoobenthos in streams in the Katon-Karagay national Park, carried out in 2009–2011. Presented are the taxonomic composition, a description of the spatial distribution of the...