The color scale indicates the proportion of model runs that resulted in a presence. Bird and plant preferences were those in table 1. The dispersal kernel was exponential with rate 2.2. Note the symmetric pattern encircling each introduction point (black dots), describing a diffusion model constrained by unsuitable habitat.
(Left) The binary landscape, where developed, agricultural and deciduous forest are all classified as favorable habitat (green). Black circles denote the observed presences from herbarium records.
