Figure 1.
Climate, vegetation and topography of study area (Veracruz, Mexico).
Black lines represent municipalities.
Figure 2.
Occurrences and potential distributions of the vipers commonly distributed in Veracruz, Mexico.
Table 1.
Viper occurrence data (N) and Partial ROC analyses results (Mean Ratio = MR, standard deviation = SD, significance = P).
Figure 3.
Geographic representation of the distance to niche centroid of the vipers.
Figure 4.
Distribution per municipality of smoothed snakebite incidence (2003–2012), marginalization and distances to niche centroid of Crotalus simus and Bothrops asper.
White municipalities have no data.
Figure 5.
Relationships between snakebite incidence and distances to niche centroid of Crotalus simus, Bothrops asper and the marginalization index (INEGI 2010).
Table 2.
Univariate generalized additive models relating snakebite incidence and explanatory variables.
Table 3.
Multivariate generalized additive models relating snakebite incidence and explanatory variables.