Figure 4From: The odor of origin: kinship and geographical distance are reflected in the marking pheromone of male beewolves (Philanthus triangulum F., Hymenoptera, Crabronidae)Correlation between pairwise geographic and chemical distances of populations of P. triangulum males. The trend line was obtained by linear regression in order to visualize the association (data sets 1 and 2; C25-type only; normalization: Würzburg – Düsseldorf; Mantel-test: r = 0.630, p = 0.013; see also Table 4 and text for details).Back to article page