Figure 5.

Composition and structure sharing schedule: species composition and Culicoides richness follow a nestedness pattern. (A) Pattern of nestedness is plotted in the central panel, where the assemblage at each epidemiological week is row-wise filled and the occurrence of species in column-wise on an incidence matrix. Rows and columns are arranged to maximize the decreasing fill and overlap (NODF) of the matrix. Cells color illustrates calendar season affiliation. Accordance between species occurrence ranking ((B), upper panel) and species arrangement in A is presented by a bar chart of observed species weekly occurrence. Red labeled species indicate Culicoides incriminated in Orbivirus transmission. Moreover, richness ((C), left panel) and weekly composition matching are illustrated by the weekly species richness bar chart parallelizing the week order in the nestedness matrix (A). Proportion of the total assemblage cover by each richness level is indicated at the left side of the bar. Inner density plot shows significance of NODF (red line) towards the null distribution of NODF scores (n = 1000).