Figure 1

Relationships between plant size and vital rates (survival, growth, probability of reproduction, fecundity) in H. squamatum and L. subulatum modelled with GLMMs. Black dots are observed values, mean values with standard errors in the cases or survival and probability of reproduction. Grey dots represent predicted values. Lines represent variations in adjusted values related to variations in two of the explanatory variables included in the most explanatory model selected by species and vital rate. Intra intraspecific interaction index, Inter interspecific interactions index, WB summer water balance, P spring rainfall.