Fig. 3From: Pre-industrial plague transmission is mediated by the synergistic effect of temperature and aridity indexWavelet analyses of the phase and frequency of the climate-plague nexus in Europe in AD1347–1760. a XWT analysis of temperature and plague. b XWT analysis of aridity index and plague. c WTC analysis of temperature and plague. d WTC analysis of aridity index and plague. e MWC analysis of temperature, aridity index, and plague. f PWC analysis of temperature and plague, with the effect of aridity index controlled. g PWC analysis of aridity index and plague, with the effect of temperature controlled. The color code for the spectrum refers to the significance of the relationship, ranging from dark red (high values) to dark blue (low values). Region with significant coherency (p < 0.05) against red noise is indicated by the black contour line. In the graph, the cone of influence indicates regions not influenced by edge effectBack to article page