Population dynamics of the lice (Mallophaga) on auks (Alcidae) from Newfoundland

Two hundred and seventy alcids representing six species from Newfoundland, Canada, were examined for Mallophaga. A total of twelve species belonging to three genera (Saemundssonia, Cummingsiella, Austromenopon) were recovered. Each host species and the parasites recovered from it are discussed seperately. Details of prevalence and intensity of parasitism are given, as are seasonal and annual data. Differences between the burdens of adults and chicks are recorded and the prevalence and intensity of infestation is related to the ecology of the hosts.