Persistent pollutants and the patchiness of urban green areas as drivers of genetic richness in the epiphytic moss Leptodon smithii

Valeria Spagnuolo , Flavia De Nicola , Stefano Terracciano , Roberto Bargagli , Daniela Baldantoni , Fabrizio Monaci , Anna Alfani , Simonetta Giordano


Received January 18, 2014,Revised June 17, 2014, Accepted , Available online December 22, 2014

Volume 26,2014,Pages 2493-2499

We determined genetic variation and metal and polycyclic aromatic hydrocarbon concentrations in Leptodon smithii moss collected in holm oak stands at cities, outskirts and remote areas of Campania and Tuscany (Italy) to investigate if anthropogenic pressure (pollutant emissions and land use change) affects moss genetic richness. In both regions, metal and polycyclic aromatic hydrocarbon concentrations reflected the trend urban > outskirts > remote areas, excepting Tuscany remote site. In both regions, themoss gene diversity increased fromurban to remote areas. The findings suggest the extent and the fragmentation of urban green areas, as drivers of moss genetic richness.

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