The dynamics of infection of Tribolium confusum by Hymenolepis diminuta: the influence of infective-stage density and spatial distribution.

摘要: The mean parasite burden of a population Tribolium confusum is shown to rise plateau as the exposure density infective eggs Hymenolepis diminuta increases. level this be dependent on nutritional status host population, being depressed from approximately 18 cysticercoids/beetle in hosts which have been starved prior experimentation, 2 satiated hosts. A simple model used describe shape infection functional response terms predator–prey interaction between (T. confusum) and stages (H. eggs). distribution successful infections/host over-dispersed, even when are exposed arranged uniform spatial pattern. over-dispersion numbers/host become more severe pattern changes under-dispersed, through random, over-dispersed. Experimental results discussed relation dynamics parasite–host interactions, takes place by ingestion free-living stage.