Fig. 4From: Microbial diversity in the floral nectar of Linaria vulgaris along an urbanization gradientNMDS ordination of the total microbial community composition (bacteria and yeasts) in the floral nectar of 20 Linaria vulgaris populations located across an urbanization gradient in the vicinity of Leuven, Belgium. The populations have been color coded to represent the degree of impervious surfaces within 500 m radius of each population, as in Fig. 7 Back to article page