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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Colonisation of islands by the insectivorous mammals
 Matějů, Petr ; Černá Bolfíková, Barbora (advisor) ; Kristýna, Kristýna (referee)
Biological invasions are a serious problem worldwide. Besides the natural colonizations mediated by tectonic movements or formation of a land bridge connection, there are also the artificial ones. Humans can deliberately or undeliberately translocate species across ecosystems. Recently, mainly because of the buisness and tourism there is a dramatical increase in human-mediated biological invasions. Many authors, who discussed invasions in the past, were focused on rodents. Despite its severe impact on the ecosystems the topic of insectivorous mammals remains relatively untouched by scientists so far. Practical part of this thesis is focused on the Northern white-breasted hedgehog (Erinaceus roumanicus) and his dispersal in the Mediterranean area. Mitochondrial control region sequences of 28 samples were analyzed and compared to already published data from GenBank. Discussion was made through phylogenetical analysis. Main topics of discussion were focused on a possible contemporaneity and a course of transfer of the gene flow. Most of the samples showed haplotype similarity with individuals occupying the closest mainland. On the other hand samples from Skyros did not go with the trend. They matched with haplotype from Crete.
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