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Changes in proportion of original amounts of a N and b P in litterbags over time. Galenia africana (filled dots), renosterbos Elythropappus rhinocerotis (filled triangles) and Watsonia borbonica (open squares). The proportion of initial N and initial P remaining differed between litter types and decreased in G. africana and E. rhinocerotis but increased in W. borbonica (p < 0.05 in all cases). Standard error bars when not visible are smaller than the dots
