Media type: E-Article Title: Population Regulation in Sparrowhawks Contributor: Newton, I.; Marquiss, M. Published: JSTOR, 1986 Published in: The Journal of Animal Ecology, 55 (1986) 2, Seite 463 Language: Not determined DOI: 10.2307/4731 ISSN: 0021-8790 Origination: Footnote: