Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAn Estimate of Intrinsic Rate of Natural Increase in the Planarian, Dugesia Tigrina.AuthorsRoot, Richard B.PublicationEcology, 1960, Vol 41, Issue 2, p369ISSN0012-9658Publication typeArticleDOI10.2307/1930233