PR = Paraná; PA = Pantanal; AR = Araguaia; AM = Amazon; n = number of samples for each source in each basin. Shared superscript lowercase letters indicate lack of significant differences for the Tukey
Dryland ecosystems are increasing in geographic extent and contribute greatly to interannual variability in global carbon dynamics. Disentangling interactions among dominant primary producers can
Seawater samples (1-5 l depending on distance of a station from a coast and depth of sampling) were filtered through Whatman GF/F filters (diameter 2.5 cm). Then the filters were wrapped in aluminium
