Extended Data Fig. 1: The impact of host pace-of-life (columns, slower as you move right) on the relative importance of reproduction-based versus survival-based host population regulation in generating demographically competent host populations for a pathogen with density-dependent transmission across a range of strengths of host population regulation (rows, increasing as you go up).

The y axis of each panel represents pathogen transmissibility and the x axis represents pathogen virulence (in terms of its effect on host mortality). Dark blue represents survival-based regulation producing much higher demographic competence. Bright green represents reproduction-based regulation producing much higher demographic competence. White represents density-dependent survival and reproduction producing a similar effect. Grey represents regions where neither reproduction-based nor survival-based regulation can maintain endemic disease in a starting population of 1000 hosts as a result of pathogen extinction.