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Table 1 Parameters for exponential models fitted to indicator semivariograms of the distributions of two tick-borne pathogens

From: Enhanced spatial models for predicting the geographic distributions of tick-borne pathogens

Pathogen Range (a) Nugget (c 0 ) Partial Sill (c 1 ) Normalized sill
Ehrlichia chaffeensis 128.7 km 0.0767 0.140 0.646
Anaplasma phagocytophilum 137.3 km 0.151 0.102 0.402
  1. Total sill is the maximum semivariance, c 0 + c 1 .
  2. Normalized sill is the ratio of the partial sill to the total sill, c 1 /(c 0 + c 1 )
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