At the north-eastern extremity: variation in Cepaea nemoralis around Gdańsk, northern Poland

CAMERON, Robert A.D., Małgorzata OŻGO, Michal HORSÁK and Zdzislaw BOGUCKI. At the north-eastern extremity: variation in Cepaea nemoralis around Gdańsk, northern Poland. Biologia. 2011, vol. 66, No 6, p. 1097-1113. ISSN 0006-3088.

Basic information

• Original name: At the north-eastern extremity: variation in Cepaea nemoralis around Gdańsk, northern Poland
• Authors: CAMERON, Robert A.D. (826 United Kingdom of Great Britain and Northern Ireland), Małgorzata OŻGO (616 Poland), Michal HORSÁK (203 Czech Republic, guarantor, belonging to the institution) and Zdzislaw BOGUCKI (616 Poland).
• Edition: Biologia, 2011, 0006-3088.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: Slovakia
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 0.557
• RIV identification code: RIV/00216224:14310/11:00053753
• Organization unit: Faculty of Science
• UT WoS: 000299102900020
• Keywords in English: Cepaea nemoralis; polymorphism; natural selection; founder effects
• Tags: AKR, rivok

Abstract

Variation in the shell colour and banding polymorphism in the land snail Cepaea nemoralis was studied in 260 populations in the region of Gdańsk, northern Poland. Unlike in other regions of Poland, many populations contain brown shells. Populations from shaded habitats have higher frequencies of brown than those from open and intermediate habitats, largely at the expense of yellow shells. Nearly all brown shells are also unbanded. Apart from this disequilibrium, banding morphs among yellow and pink shells show no relationship to habitat. There are no broad geographical trends in morph-frequencies, but there are very strong correlations among populations very close together, revealed both by pairwise analysis and Moran’s I. Principal Component Analyses show that these correlations relate to overall genetic similarity at the loci involved. The populations are at the north-eastern limits of the species’ range; habitats are mostly anthropogenic, and comparisons with studies in two urban areas (Wrocław, SW Poland, and Sheffield, central England) suggest that the patterns of variation seen are a product of human transport of propagules followed by local dispersal. The effect of habitat here is much less marked than in regions much further west, but it indicates that natural selection has occurred.

Links

• MSM0021622416, plan (intention): Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time