Figure 2: Effects of logging on the number of partners and interactions of plants in the plant–pollinator and plant–seed disperser mutualisms.
From: Correlated loss of ecosystem services in coupled mutualistic networks
The number of partners (a) and the interaction frequency (b) of plants in both mutualisms (plant–pollinator and plant–seed disperser) in old-growth forest (closed circles) and logged forest (open circles). Grey circles depict model predicted data (n=322), lines represent the predicted mean response of each of the 10 focal plant species, and black circles indicate the predicted mean response on the level of the plant assemblage (mean±s.e.m.). The LR ratios (LRs) in c,d estimate the ‘effect size’ of logging. LR measures the proportional difference between the mean value of the response variable y in old-growth forest and the mean value of y in logged forest. LR<0 indicates a negative effect of logging on (c) the number of partners and (d) interaction frequency of plants in both mutualisms. The lines in c,d connect the responses of both mutualisms for each plant species.
