Dülmen, Germany with 32 records
Torfvennteich, Germany with 22 records
Merfelder Bruch, Germany with 19 records
Rieselfelder Münster, Germany with 15 records
Langeoog, Germany with 8 records
Ochsenmoor Reserve, Germany with 8 records
Heubachwiesen, Germany with 6 records
Boombach, Germany with 6 records
St. James's Park, Great Britain with 6 records
Heubachniederung, Germany with 4 records
Münster Zoo, Germany with 4 records
Versunken Bokelt, Germany with 3 records
Bislicher Insel, Germany with 2 records
Spiekeroog, Germany with 2 records
Münster, Germany with 2 records
North Rhine-Westphalia, Germany with 2 records
Berlin, Germany with 2 records
Kuhlenvenn, Germany with 1 record
Welter Bachauen, Germany with 1 record
Limburg Province, Netherlands with 1 record

This is a list of the top 20 specific localities, sorted by the total amount of materials.