TrophicCascades:AbidingHeterogeneityandthe TrophicLevelConceptatthe Endof theRoad Lennart Persson Oikos,Vol.85,No.3.(Jun.,1999),pp.385-397. StableURL: http://links.jstor.org/sici?sici=0030-1299%28199906%2985%3A3%3C385%3ATCAHAT%3E2.0.CO%3B2-N OikosiscurrentlypublishedbyNordicSocietyOikos. YouruseoftheJSTORarchiveindicatesyouracceptanceofJSTOR'sTermsandConditionsofUse,availableat http://www.jstor.org/about/terms.html.JSTOR'sTermsandConditionsofUseprovides,inpart,thatunlessyouhaveobtained priorpermission,youmaynotdownloadanentireissueofajournalormultiplecopiesofarticles,andyoumayusecontentin theJSTORarchiveonlyforyourpersonal,non-commercialuse. Pleasecontactthepublisherregardinganyfurtheruseofthiswork.Publishercontactinformationmaybeobtainedat http://www.jstor.org/journals/oikos.html. EachcopyofanypartofaJSTORtransmissionmustcontainthesamecopyrightnoticethatappearsonthescreenorprinted pageofsuchtransmission. JSTORisanindependentnot-for-profitorganizationdedicatedtoandpreservingadigitalarchiveofscholarlyjournals.For moreinformationregardingJSTOR,[email protected]. http://www.jstor.org FriMar2312:29:512007
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