| intensity of nematode infections in cyclic and non-cyclic rock partridge (alectoris graeca saxatilis) populations. | populations of rock partridge (alectoris graeca saxatilis), in the trentino province of italy, exhibit cyclic fluctuations in abundance associated with relatively dry habitat. one of the hypothesis to explain these cycles is that survival of some free living parasitic stages and rates of infection are greater in these areas leading to higher parasite burden. this hypothesis was examined by investigating the intensity of parasite infection in cyclic and non cyclic rock partridge populations. anal ... | 1999 | 10870561 |