File with environmental variables (introductions and flyways). a

envdist is a text file in Canoco format coding for the inclusion of each locality in the Pacific flyway (first column), Central flyway (second column), Atlantic flyway (third column) and the native or introduced status of each population (fourth column). The localities were assigned to flyways according to Boere and Stroud (2006). Localities are coded according to Table 1 of the paper