Thespecies-arearelationship(SAR)describesarangeofrelatedphenomenathatarefundamentaltothestudyofbiogeography,macroecologyandcommunityecology.Whilethesubjectofongoingdebateforacentury,surprisingly,nopreviousbookhasfocusedspecificallyontheSAR.ThisvolumeaddressesthisshortfallbyprovidingasynthesisofthedevelopmentofSARtypologiesandtheory,aswellasempiricalresearchandapplicationtobiodiversityconservationproblems.ItalsoincludesacompilationofrecentadvancesinSARresearch,comprisingnovelSAR-relatedtheoriesandfindingsfromtheleadingauthorsinthefield.Thechaptersfeaturespecificknowledgerelatingtoterrestrial,marineandfreshwaterrealms,ensuringacomprehensivevolumerelevanttoawiderangeoffields,withamixofreviewandnovelmaterialandwithclearrecommendationsforfurtherresearchandapplication.