Leuke vangsten in een woonwijk
Bzzz/HymenoVaria , Volume 29 - Issue 1 p. 23- 25
A playground in an old part of the city of Drachten is described. Here one finds 30 or more upright tree trunks. Several species of wasp were found on these trunks..In the rest of the grounds one finds several species of bee. The conclusion is that urban areas provide good posibilities for aculeates. But conservation pays too little attention to this fact.
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