![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
A study carried out over eleven years of the intertidal zonation in Tasmania shows certain changes which take place over a long period of time. These changes affect many groups of organisms, but the most serious effect is upon the Mollusca, so that lists of molluscan species of an area can vary greatly from year to year. Interspecific competition is important in long term changes.