Figure 1.
Geographical location of the eight sampling areas within the Northern German federal state Lower Saxony. (1) Wingst (district of Cuxhaven), (2) Lingen East (district of Emsland), (3) Lingen West (district of Emsland), (4) Lake “Die Rolle” (district of Nienburg), (5) Rauher Busch (district of Nienburg), (6) Barsinghausen/Mooshuette (district of Hannover), (7) Celle (district of Celle), (8) garden near Flettmar (district of Gifhorn). The small map shows the location of Lower Saxony within Germany. Abbreviations: G: Germany, NL: The Netherlands, B: Belgium, AUS: Austria, TS: Czech Republic, P: Poland.
