The Population Decline and Extinction of Darwin's Frogs Soto-Azat, Claudio ; Valenzuela-Sánchez, Andrés ; Collen, Ben ; Rowcliffe, J. Marcus ; Veloso, Alberto ; Cunningham, Andrew A. Abstract Publication: PLoS ONE Pub Date: June 2013 DOI: 10.1371/journal.pone.0066957 Bibcode: 2013PLoSO...866957S