Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleChanges in Thirty-One Years in a Sierra Nevada Ecotone.AuthorsHeath, James P.AbstractResurveys of a plot established in a Sierra Nevada ecotone in 1937 show significant decreases in four major species, similar changes in six lesser species, and increases in only four species.PublicationEcology, 1971, Vol 52, Issue 6, p1090ISSN0012-9658Publication typeArticleDOI10.2307/1933817