Current Redundancy

Based on the recent genetic work of Duncan et al. (2017), PCC historically lacked redundancy in that its historic range consisted of one metapopulation based on interconnected habitats positioned on suitable soils throughout the 56 sq. mi. range. Currently, we see the range fragmented, and existing populations are broken into an eastern group of five populations and a western group of eight populations based on the genetics of PCC and its geographic distribution. Currently, only 9 resilient populations exist rangewide; 4 in the western group and 5 in the eastern group. Of these populations, only 1 highly resilient population persists in the west and 3 highly resilient populations in the east.