Fig. 2 Variation in both annual rainfall and the percentage of red swamp crayfish occurrence (100* n sites with crayfish/n sites sampled) from 1991 to 2010 (no data are available for 1995–1996, or for 2000–2002)
Fig. 2 Variation in bothannual rainfall and thepercentage of red swampcrayfish occurrence (100*n sites with crayfish/n sitessampled) from 1991 to 2010(no data are available for1995–1996, or for2000–2002)