Current address: Department of Population Ecology, Zoological Institute, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen 0, Denmark.
Population genetics of a successful invader: the marsh frog Rana ridibunda in Britain
Article first published online: 26 FEB 2003
Volume 12, Issue 3, pages 639–646, March 2003
How to Cite
Zeisset, I. and Beebee, T. J. C. (2003), Population genetics of a successful invader: the marsh frog Rana ridibunda in Britain. Molecular Ecology, 12: 639–646. doi: 10.1046/j.1365-294X.2003.01775.x
- Issue published online: 26 FEB 2003
- Article first published online: 26 FEB 2003
- Received 22 November 2002; revision received 4 December 2002; accepted 4 December 2002
- alien species;
- Rana ridibunda;
We investigated the genetic outcome of successful invasion by an alien species, the marsh frog Rana ridibunda, in Britain. Twelve adults translocated from Hungary into Kent (Romney) in 1935 resulted rapidly in a large localized population. A further successful translocation in 1973 from Romney to Sussex (Lewes), together with other range extensions, provided an opportunity to test bottleneck effects during colonization events. Romney and Lewes frogs had similar genetic diversities to those in Hungary at 14 random amplified polymorphic DNA marker (RAPD) and five microsatellite loci. The introduced populations were, however, differentiated genetically from each other and from a reference population in Hungary. Fitness assessments (larval growth and survival) revealed no differences between the Lewes and Romney populations. Despite starting with few founders, significant bottleneck effects on R. ridibunda in Britain were therefore undetectable, presumably because population expansions were rapid immediately after the translocations.