Origination and Immigration Drive Latitudinal Gradients in Marine Functional Diversity Berke, Sarah K. ; Jablonski, David ; Krug, Andrew Z. ; Valentine, James W. Abstract Publication: PLoS ONE Pub Date: July 2014 DOI: 10.1371/journal.pone.0101494 Bibcode: 2014PLoSO...9j1494B