Ferrer, M., Penteriani, V., Balbontín, J., Pandolfi, M. 2003. The proportion of immature breeders as a reliable early warning signal of population decline: Evidence from the Spanish Imperial Eagle in Doñana. Biological Conservation 114: 463 – 466.
Key words: age at first breeding, population monitoring and trends, population decline, early warning signals, spanish imperial eagle
Year: 2003