Fig. 2From: Generalist host species drive Trypanosoma cruzi vector infection in oil palm plantations in the Orinoco region, ColombiaRegression tree analysis for vector infection. To test the relationship between vector infection prevalence and host species habitat associations we used a regression tree model. We considered domestic, generalist, and specialist sylvatic as habitat associations. Circles and rectangles represent non-terminal and terminal nodes, respectively. The circled node at the top is labeled with the number of infected individuals (n = 296) and total R. prolixus infection rate variance explained by the tree (77%). Links between nodes are labeled with the presence (1) or absence (0) of a species-habitat association. All nodes are labeled with the predicted infection rate and the number of individuals that meet the preceding link(s) condition(s). The highest infection rate, 88%, was predicted for R. prolixus feeding solely from generalist mammal species. On the other hand, the lowest infection rate (64%) was predicted for individuals having blood meals only from specialist mammal speciesBack to article page