Figure 2.
SMTP trapping sites. (a) The first 60 Malaise traps (Traps 1-61) erected in the summer of 2003. (b) Ten traps (Traps 1000-1008 and 1353) added in the winter of 2004/2005. (c) Three traps (Traps 2003, 2006 and 2046) added in 2006.
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