Figure 2

Influences (pure and combined) of ecological (matrix X) and sociocultural (matrix W) explanatory variables on management of edible species (matrix Y). Each CCA model involves different subsets of variation sources. For instance, matrix X affects matrix Y (Y~X) but in X coexists intermingled variation sources a) and b). Modified from Boccard et al. [36]. a) Ecological fraction of management intensity variation that can be explained only by ecological data, b) Sociocultural + ecological data, c) Sociocultural fraction of management intensity variation explained only by sociocultural data, and d) Undetermined data or fraction of management intensity variation explained neither by ecological nor by sociocultural data.