Figure 4: Differences in evidence between service providers and non-service providers.
From: Disaggregating the evidence linking biodiversity and ecosystem services
Service providers are the taxa, communities or functional groups expected to be responsible for the ES of interest. (a) Number of relationships involving service providers (SP) and non-service providers (non-SP). Blue denotes service providers and orange denotes non-service providers. (b) Comparing the balance of evidence between service providers and non-service providers (G-tests; total: G=4.50, degrees of freedom (d.f.)=2, P=0.106, n=163; management: G=7.94, d.f.=2, P=0.019, n=54; spatial: G=4.82, d.f.=2, P=0.090, n=79). Pie charts are scaled such that their areas (not radii) are proportional to the number of relationships. Colours depict the sign of the reported relationship: blue=positive; red=negative; yellow=not significant. See Fig. 1 for description of three linkage types. Labels for significance: *P<0.10; **P<0.05.
