carabids 2011-2014 ...

Data on carabid observations in pitfall traps in Drenthe, Netherlands. Colum names: Blik_nr. = pitfall number; Datum = Date; Jaar = year; serie = location; soort_kever = species name; Totaal = number of individuals; Seriejaar = location-year combination; PosVal = position pitfall (each location contained three pitfalls, only second included in this study, see publication); week = week of the year (ranginging from 1-53). ...