Dispersal evolution in a population infected with a male-killing endosymbiont

Abstract Host dispersal influences how frequently a parasite encounters new susceptible hosts, which translates into potential conflict between parasite and host interests regarding dispersal. In vertically transmitted parasites, the impact of host dispersal on parasite spread appears limited. Here, it is less intuitive whether parasites can benefit by manipulating host dispersal and, if so, whether they would evolve to increase or decrease host dispersal. We examine host–parasite conflict over