Fig. 4

Yearly semivariograms for Trichuris trichiura (in decimal degrees). Each plot shows a semivariogram for each year of the impact study: a 2007, b 2008, c 2009, d 2010, e 2011, f 2014
Yearly semivariograms for Trichuris trichiura (in decimal degrees). Each plot shows a semivariogram for each year of the impact study: a 2007, b 2008, c 2009, d 2010, e 2011, f 2014