Structural changes of helminthofauna in rodents caused by introduction and settlement of animals in the Volga Delta

Ivanov, V. A.; Kalmykov, A. P.; Федорович, Вальков Владимир; Semenova, N. N.; Parshina, O. Yu.

doi:10.1134/s207909611104007x

Cited by 12 publications

(8 citation statements)

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“…alakolensis : Pygorchis alakolensis Zhatkanbaeva, 1967. Synonym . Pygorchis alacolensis Zhatkanbaeva, 1967 (Semenova & Ivanov, 1985; Ivanov et al ., 2003; Schuster, 2013). Collection Comenius Museum Přerov (J. Sitko), one specimen, number P-P-1870/6 (fig.…”

Section: Resultsmentioning

confidence: 99%

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Molecular characterization of European Pygorchis Looss, 1899

Heneberg

Sitko

2021

J. Helminthol.

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Adult trematodes of the genus Pygorchis Looss, 1899 (Trematoda: Philophthalmidae) parasitize the cloaca of birds. The genus contains three species, all of which are rarely reported and molecular phylogenetics of which have not been applied. The absence of reference DNA sequences limit studies of their indistinct larval forms. Based on the materials that were obtained from birds of the Czech origin, we performed a molecular characterization of both currently known Pygorchis spp., which are known from the Palearctic, the type species Pygorchis affixus Looss, 1899 and Pygorchis alakolensis Zhatkanbaeva, 1967, and provided morphological description of the examined P. alakolensis specimen. We found that the two species were of similar dimensions; the only difference was in the position of testes and in the extent of vitelline follicles. However, the position of testes in P. affixus was variable, and approximately 10% of examined P. affixus individuals had testes positioned obliquely. The second feature that allows differential diagnostic, the extent of vitelline follicles, was more reproducible as the vitelline follicles of P. affixus did not extend beyond the intestinal caeca, or, in exceptional cases, they extended them at only one side. In the examined P. alakolensis individual, the testes were positioned obliquely, and the vitelline follicles extended beyond the intestinal caeca. We reported P. alakolensis for the first time from Europe; previously, it was known only from Central Asian lakes and rivers. We confirmed the classification of Pygorchis into Philophtalmidae.

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Section: Resultsmentioning

confidence: 99%

“…Synonym . Pygorchis alacolensis Zhatkanbaeva, 1967 (Semenova & Ivanov, 1985; Ivanov et al ., 2003; Schuster, 2013).…”

Section: Resultsmentioning

confidence: 99%

Molecular characterization of European Pygorchis Looss, 1899

Heneberg

Sitko

2021

J. Helminthol.

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“…Despite the relatively high helminth diversity observed in the myomorph rodents from the National Park "Smolny", it still does not reach its maximum, since more than 80 species of parasitic worms are known for small wild rodents in European Russia [9,[27][28][29][30][31][32][33][34]45,77,[86][87][88]. Thus, we have registered 39 helminth species in the myomorph rodents from the Samarskaya Luka, located 300 km south-east [27,28,34,77].…”

Section: Discussionmentioning

confidence: 99%

“…In the Voronezh State Nature Reserve, 53 species of parasites were observed in small rodents [29,31]. Fifty-one species of helminths are known for myomorph rodents from the Volga delta [30,86]. In the Central Chernozem Reserve, 32 species of helminths were observed in myomorph rodents [32].…”

Section: Discussionmentioning

confidence: 99%

“…Considering that full-scale helminthological studies of vertebrates in the National Park "Smolny" have not previously been carried out, the trend of parasitological research associated with the inventory of animal helminth fauna as one of the stages of the inventory of the fauna of protected areas, monitoring and preserving biological diversity is relevant [9,[27][28][29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

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Helminths in Myomorph Rodents (Rodentia, Myomorpha) from the National Park “Smolny” and Its Surroundings (European Russia)

Kirillova

Ruchin

Kirillov

2021

Forests

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The National Park “Smolny” is a large forest area, located in the center of European Russia. The helminth fauna of myomorph rodents was studied for the first time within the National Park in 2018–2020. Rodents were examined by the method of complete helminthological dissection. A total of 30 species of parasites were recorded in 11 rodent species: 6 trematodes, 11 cestodes and 13 nematodes. The trematode Plagiorchis maculosus (Rudolphi, 1802) was found in Clethrionomys glareolus (Schreber, 1780) from the Russian fauna for the first time. Clethrionomys glareolus and Microtus arvalis (Pallas, 1779) are new hosts for P. maculosus and metacestode Versteria mustelae (Gmelin, 1790), respectively. The most widespread and eurybiont rodent species have the most diverse and rich helminth fauna, such as C/ glareolus (14 species), Apodemus agrarius (Pallas, 1771) (12) and Sylvaemus uralensis (Pallas, 1811) (10). The helminth fauna is less diverse in Sylvaemus flavicollis (Melchior, 1834), M. arvalis (7 species each), Microtus agrestis (Linnaeus, 1761) (5), Microtus subterraneus (de Selys-Longchamps, 1836) (3), Sicista betulina (Pallas, 1779) (2) and Arvicola amphibius (Linnaeus, 1758) (1). Comparative analysis the helminth fauna of small rodents from the National Park “Smolny” with micromammals from other regions of European Russia revealed that the high similarity with other areas reaches the helminth fauna of M. subterraneus, S. flavicollis, S. uralensis, S. betulina, A. amphibius and M. agrestis.

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