October 1973 – vol. 66, issue 10, pp 417–437 This review discusses some of the latest developments in research on population dynamics. A safe way to do this is to take the usual textbook approach, which describes the most important principles so far discovered in a scientific subject and summarises some studies as examples. This makes a tidy package, of the kind often asked for in written examinations. However, it can give the misleading imp... This article is only available to registered users.To read more, please log in or purchase a subscription.