| dispersal in patchy environments: effect on the prevalence of small mammal ectoparasites. | part-time ectoparasites on small mammals disperse via the habitat, while full-time parasites spread throughout the host population by direct contacts between host animals. it is therefore supposed that the effect of the natural environment is different for the two groups. this was studied as differences between observed and expected prevalence, the percentage of the infested host population, during different environmental conditions. two possible mechanisms of such an effect were analysed, i.e. ... | 1987 | 3428766 |