Figure 3

Associations among the average total percentage biomass of the invader at the final time step, and the average pre-invasion diversity (1/D) (A), and the average growth rate of the resident community before invasion (B). Associations between the average growth rate of the resident community before invasion against the average pre-invasion diversity (1/D) (C). Only PSFI scenarios with an average % total biomass of the invader at the final time step > 0.5% are included in these plots. Both axes are logged for plot (A) and the x-axis for plot (C). Pre-invasion diversity was calculated as the diversity at time step 10,000, just before invasion. The average growth rate of the resident community before invasion was estimated based on the frequency of each species in the community at timepoint 10,000. This could be considered a measure of the productivity of the community. In (B) the minimum growth rate of the invader in each community is represented by a grey dotted line. Coloured arrows in (A) indicate the changes in values based on the presence of negative conspecific interactions. Symbols represent the means of 100 replicates for each scenario. Different colours and symbols are used to help differentiate the different PSFI network scenarios. Different colour shades represent the different group size variations. Lighter shades represent the architectural variation with a group size of 5, middle shades a group size of 10, and darker shades a group size of 20.