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Low impact of metal pollution on genetic variation in the earthworm Dendrobaena octaedra measured by allozymes

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Low impact of metal pollution on genetic variation in the earthworm Dendrobaena octaedra measured by allozymes

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dc.contributor.author Simonsen, Vibeke pl
dc.contributor.author Laskowski, Ryszard [SAP11012037] pl
dc.contributor.author Bayley, Mark pl
dc.contributor.author Holmstrup, Martin pl
dc.date.accessioned 2016-10-27T11:30:35Z
dc.date.available 2016-10-27T11:30:35Z
dc.date.issued 2008 pl
dc.identifier.issn 0031-4056 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/31809
dc.language eng pl
dc.title Low impact of metal pollution on genetic variation in the earthworm Dendrobaena octaedra measured by allozymes pl
dc.type JournalArticle pl
dc.description.physical 51-60 pl
dc.abstract.en Numerous previous studies have reported significant effects of metal. pollution on earthworm populations. In this study we investigated the effects of heavy metal pollution on the genetic diversity of populations of the earthworm Dendrobaena octaedra sampled along well-defined metal, gradients at two different locations. One hundred and sixty-two specimens, representing six locations along a gradient of heavy metal, pollution in Poland (Olkusz), and 193 specimens, representing seven Locations along a similar gradient in Sweden (Gusum), were collected. All worms were analysed for 10 isozymes. The fraction of unique clones was 0.61 for the Polish specimens and 0.84 for the Swedish. The number of individuals sharing the same clonal type was tow both within the Local. populations and between populations in the different locations. Only three clones were shared by the two countries for a total of eight individuals. No homogeneity among the samples within each country was observed. The variation in two enzymes, esterase and superoxide dismutase, was weakly correlated to a metal toxicity index calculated using EC(50) values for earthworms. Such a correlation was neither observed for the fraction of unique clones nor for clonal. diversity. The results suggest that genetic diversity of D. octoedra populations is only weakly affected by pollution with heavy metals despite clear effects on population densities. pl
dc.description.volume 52 pl
dc.description.number 1 pl
dc.identifier.doi 10.1016/j.pedobi.2008.02.003 pl
dc.identifier.eissn 1873-1511 pl
dc.title.journal Pedobiologia pl
dc.language.container eng pl
dc.affiliation Wydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowisku pl
dc.subtype Article pl
dc.rights.original bez licencji pl


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