Death of individuals due to density-dependence. Loss of weight of individuals due to density-dependence. The target species is common relative to the mimic. The mimic lives in the same habitat as the target species. The mimic feeds on the same food plant as the target species.
Aposematic coloration occurs in both target and mimic species.
The mimic looks like the target species. Wide realized niche d. Strain I of the myxoma virus which is carried by mosquitoes and causes the disease myxomatosis in rabbits is the most virulent of the five known strains. The rabbits were killed by the calici virus instead. Rabbits have become fully resistant to strain I. d.