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Table 1 Descriptive statistics for nymph density from 2000 to 2014. Yearly mean, maximum and minimum densities of field-collected questing nymphs during the study period

From: Influence of climatic factors on Ixodes ricinus nymph abundance and phenology over a long-term monthly observation in Switzerland (2000–2014)

Year Mean density Maximum density Minimum density Cumulated density (CND)
2000 30.49 100.48 0.19 11,147.38
2001 38.60 146.71 0.10 14,697.43
2002 36.66 132.22 1.14 12,564.97
2003 36.03 163.11 0.10 13,612.82
2004 30.22 105.62 1.62 9295.09
2005 22.34 49.95 4.10 5649.52
2006 38.73 159.68 0 13,735.11
2007 17.04 51.48 0 6999.33
2008 35.47 106.39 0 12,769.21
2009 30.22 134.51 0 11,227.26
2010 20.36 69.32 0 6683.16
2011 32.69 97.09 0 10,830.31
2012 17.52 61.24 0.19 6457.33
2013 22.40 96.38 0 8221.73
2014 17.62 49.71 0 6385.29
  1. Notes: Densities are indicated in number of questing nymphs per 100 m2. Cumulated nymph density (CND) is calculated as the area under the density curve over the years. For this latter measure only (CND), fictive null samplings were considered (see Methods for details)