Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic Composition

The shell colour and banding polymorphism of Cepaea was studied at 6 sites of Ternopil. Cepaea hortensis was found at all sites, its cohabitation with C. nemoralis was recorded in three cases. Phenotypes were determined in 1166 adult snails or empty shells with well-preserved colouration (830 C. hor...

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Main Authors: N. V. Gural-Sverlova, R. I. Gural
Format: Article
Language:English
Published: Publishing House "Akademperiodyka" 2023-10-01
Series:Zoodiversity
Subjects:
Online Access:https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/537
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author N. V. Gural-Sverlova
R. I. Gural
author_facet N. V. Gural-Sverlova
R. I. Gural
author_sort N. V. Gural-Sverlova
collection DOAJ
description The shell colour and banding polymorphism of Cepaea was studied at 6 sites of Ternopil. Cepaea hortensis was found at all sites, its cohabitation with C. nemoralis was recorded in three cases. Phenotypes were determined in 1166 adult snails or empty shells with well-preserved colouration (830 C. hortensis, 336 C. nemoralis). It was found that part of the areas in Ternopil, as well as in the neighbouring Lviv Region, is inhabited by descendants of the primary introduction of C. hortensis to Western Ukraine with reduced variability in the shell colouration and only with a light body. At four studied sites, colouration traits indicating the presence of later introductions of C. hortensis were found: yellow banded shells, less often pink ones and well-expressed variability in body colouration. The phenotype 10305 in C. hortensis, previously unknown from Ukraine was shown. A significant negative correlation between the yellow shell colour and the band presence in C. nemoralis was found at one site, which is not typical for Western Ukraine and also rare in other introduced Eastern European populations of this species. The potential significance of the results for documenting the introduction history of two Cepaea species into Ukraine is discussed.
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spelling doaj.art-cab69b04e80841e0804ed75a2c15abf02023-12-05T08:27:00ZengPublishing House "Akademperiodyka"Zoodiversity2707-725X2707-72682023-10-0157610.15407/zoo2023.06.507537Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic CompositionN. V. Gural-Sverlova0R. I. Gural1State Museum of Natural History, NAS of Ukraine, LvivState Museum of Natural History, NAS of Ukraine, LvivThe shell colour and banding polymorphism of Cepaea was studied at 6 sites of Ternopil. Cepaea hortensis was found at all sites, its cohabitation with C. nemoralis was recorded in three cases. Phenotypes were determined in 1166 adult snails or empty shells with well-preserved colouration (830 C. hortensis, 336 C. nemoralis). It was found that part of the areas in Ternopil, as well as in the neighbouring Lviv Region, is inhabited by descendants of the primary introduction of C. hortensis to Western Ukraine with reduced variability in the shell colouration and only with a light body. At four studied sites, colouration traits indicating the presence of later introductions of C. hortensis were found: yellow banded shells, less often pink ones and well-expressed variability in body colouration. The phenotype 10305 in C. hortensis, previously unknown from Ukraine was shown. A significant negative correlation between the yellow shell colour and the band presence in C. nemoralis was found at one site, which is not typical for Western Ukraine and also rare in other introduced Eastern European populations of this species. The potential significance of the results for documenting the introduction history of two Cepaea species into Ukraine is discussed.https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/537land snailscepaea hortensiscepaea nemoralispolymorphismukraine
spellingShingle N. V. Gural-Sverlova
R. I. Gural
Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic Composition
Zoodiversity
land snails
cepaea hortensis
cepaea nemoralis
polymorphism
ukraine
title Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic Composition
title_full Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic Composition
title_fullStr Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic Composition
title_full_unstemmed Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic Composition
title_short Two Introduced Cepaea Species (Gastropoda, Helicidae) in Ternopil, Western Ukraine, and Specifics of Their Phenotypic Composition
title_sort two introduced cepaea species gastropoda helicidae in ternopil western ukraine and specifics of their phenotypic composition
topic land snails
cepaea hortensis
cepaea nemoralis
polymorphism
ukraine
url https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/537
work_keys_str_mv AT nvguralsverlova twointroducedcepaeaspeciesgastropodahelicidaeinternopilwesternukraineandspecificsoftheirphenotypiccomposition
AT rigural twointroducedcepaeaspeciesgastropodahelicidaeinternopilwesternukraineandspecificsoftheirphenotypiccomposition