Factors affecting breeding success of Peregrine and Lanner Falcons in South Africa

摘要: Jenkins, A.R. 2000. Factors affecting breeding success of Peregrine and Lonner Falcons in South Africa. Ostrich 71 (384): 385-392. Breeding was recorded for three Falcon, Falco peregrinus, populations Africa over nine years, Lanner Ebiarmicus, an area sympatry years. The objectives the study were to measure geographic interspecific variation reproductive performance, determine environmental correlates productivity. Territory occupancy, frequency per occupied territory clutch size did not vary significantly between populations. However, generally lower on Cape Peninsula (1. 11 young fledged territorial poir), higher Soutpansberg (1.36) highest Orange River (1.70). Overall, fledging rates Peregrines Lanners different, although annual productivity populati...