caa a22 4500 445856874 CHVBK 20180317145430.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10592-009-9994-x doi (NATIONALLICENCE)springer-10.1007/s10592-009-9994-x Genetic erosion in a stenotopic heathland ground beetle (Coleoptera: Carabidae): a matter of habitat size? [Elektronische Daten] [Claudia Drees, Henk De Vries, Werner Härdtle, Andrea Matern, Markus Persigehl, Thorsten Assmann] Two centuries ago large areas of north-west Europe were covered by coherent heathlands which hosted numerous specialized species. Changes in land use made heathlands fragmented and rare, consequently, they are in the focus of nature conservation efforts today. But how large should remaining heathland patches be in order to secure the survival of populations of specialized species? We investigated the genetic diversity at five allozyme loci of Poecilus lepidus, a flightless and stenotopic heathland ground beetle. 29 populations from differently sized heathland patches in north-west Germany were analyzed. Results show a weak but significant genetic differentiation and no evidence for isolation by distance or other patterns of spatial autocorrelation. Linear regression analysis revealed significant relationships between patch size, allelic richness, number of alleles and expected heterozygosity. These findings are explained by severe habitat fragmentation together with strong fluctuations in population size which have been reported for this species in the past. To conserve the vast majority of the species' genetic diversity for a period of 100years we suggest to maintain heathland patches of at least 50ha in size. Springer Science+Business Media B.V., 2009 Allelic richness nationallicence Allozyme nationallicence Landscape genetics nationallicence Habitat fragmentation nationallicence Heathland species nationallicence Genetic diversity nationallicence Drees Claudia Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut De Vries Henk Dutch Butterfly Conservation, Postbus 506, 6700 AM, Wageningen, The Netherlands aut Härdtle Werner Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut Matern Andrea Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut Persigehl Markus Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut Assmann Thorsten Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut Conservation Genetics Springer Netherlands 12/1(2011-02-01), 105-117 1566-0621 12:1<105 2011 12 10592 https://doi.org/10.1007/s10592-009-9994-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-009-9994-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Drees Claudia Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut NATIONALLICENCE 700 1- De Vries Henk Dutch Butterfly Conservation, Postbus 506, 6700 AM, Wageningen, The Netherlands aut NATIONALLICENCE 700 1- Härdtle Werner Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut NATIONALLICENCE 700 1- Matern Andrea Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut NATIONALLICENCE 700 1- Persigehl Markus Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut NATIONALLICENCE 700 1- Assmann Thorsten Institute of Ecology and Environmental Chemistry, Leuphana University Lüneburg, 21335, Lüneburg, Germany aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/1(2011-02-01), 105-117 1566-0621 12:1<105 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer