Variation in the shell colour and banding polymorphism of Cepaea nemoralis (L.) in rular areas around Wrocław

POKRYSZKO, Beata M., Robert A. D. CAMERON a Michal HORSÁK. Variation in the shell colour and banding polymorphism of Cepaea nemoralis (L.) in rular areas around Wrocław. Folia Malacologica. 2012, roč. 20, č. 2, s. 87-98. ISSN 1506-7629.

Základní údaje

Originální název

Variation in the shell colour and banding polymorphism of Cepaea nemoralis (L.) in rular areas around Wrocław

Autoři

POKRYSZKO, Beata M. (616 Polsko), Robert A. D. CAMERON (826 Velká Británie a Severní Irsko) a Michal HORSÁK (203 Česká republika, garant, domácí)

Vydání

Folia Malacologica, 2012, 1506-7629

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Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Polsko

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/12:00060190

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

terrestrial snails; polymorphism; Cepaea nemoralis; rural populations

Štítky

AKR, rivok

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Anotace

V originále

105 samples of Cepaea nemoralis (L.) were made in rural locations around the city of Wroclaw in 2008-10. Variation in the shell colour and banding polymorphism showed no relationship to habitat, nor were there any large-scale geographical patterns. In some morphs, there were strong frequency correlations between samples close to one another, but these never extended beyond 20 km, and usually involved much shorter distances. Relative to populations within the city, these populations vary more among themselves, but are individually less polymorphic. Linkage disequilibria in common between city and country suggest a common origin. These results suggest that rural populations have a more recent origin, and that they are more isolated from one another than those in the city. A process of recent passive dispersal by humans, with some local spread appears to account for the pattern of variation observed.