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Forest Ecosystems
Figure 9 | Forest Ecosystems

Figure 9

From: A spatially-explicit count data regression for modeling the density of forest cockchafer (Melolontha hippocastani) larvae in the Hessian Ried (Germany)

Figure 9

Empirical semi-variograms for the randomized quantile residuals of four negative binomial regression models (Eqs. 8.3, A; 8.4, B;8.51, C;8.51Duchon, D) with spatial trend functions of different complexity (solid black dots). Additionally pointwise 95% confidence intervals for the null hypothesis of spatial independency are plotted that are based on 1 000 random permutations of the coordinates (dashed lines with blank dots).

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