Pitfall trapping is commonly used in Britain and Ireland, and records of carabids may have been submitted to the Ground Beetle Recording Scheme, and mapped in the Provisional Atlas (Luff, 1998) or may be shared via the NBN Atlas (nbnatlas.org). However, for our neighbours in The Netherlands, pitfall trapping for carabids has been used in a more-or-less standardised fashion since 1953,generating a very large and important dataset. This volume analyses the results from 4,400 ‘year-samples'(pitfalls operated either all year or at least for all the months where carabids are active) and 1,500 shorter-term samples, covering the years 1953 to 2018, sampling 2,850 sites, and spanning the full range of Dutch habitats. The authors make a conservative estimate that the work of trapping, sorting and identifying the carabids, and submitting the results, multiplied over the whole dataset has taken ‘far more than 100 person-years'!
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