We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAge, sex, density, winter weather, and population crashes in Soay sheep.AuthorsCoulson, T.; Catchpole, E. A.; Albon, S. D.PublicationScience, 2001, Vol 292, Issue 5521, p1528ISSN0036-8075Publication typearticleDOI10.1126/science.292.5521.1528