Fig. 6From: Influence of climatic factors on Ixodes ricinus nymph abundance and phenology over a long-term monthly observation in Switzerland (2000–2014)a Correlation between number of days from 1st January to the first date over 6mmHg (2-days moving average of saturation deficit), and yearly cumulated nymph density (CND). b Number of days from 1st of January to the first date over 6mmHg (2-days moving average of saturation deficit), from 2000 to 2014Back to article page