Fig. 2From: Bacterial diversity of wild-caught Lutzomyia longipalpis (a vector of zoonotic visceral leishmaniasis in Brazil) under distinct physiological conditions by metagenomics analysisConstrained multivariate analysis on bacterial abundance profiles of different wild-caught Lu. longipalpis groups based on their food source. CCA (scaling 2) showing the grouping of the experimental sand fly groups according to their f-OTU abundance profiles. The constrained CCA1 and CCA2 axes explain approximately 97% of the variance within the variance matrix of bacterial abundance. Both UF and GR groups co-localized upon the upper left quadrant and separated along CCA1 from the two blood-fed groups (BF and BFI groups). The presence of the parasite draws the BFI group away from its BF counter-group along CCA2. The length of the vectors in blue corresponds to the importance that each of the explanatory (constraining) variables had upon the clustering pattern. Each of the f-OTUs (red) is distributed in the ordination space and its preference for an “ecological niche” can be attributed to its proximity to each of the experimental groupsBack to article page