Until 8700.911 generations ago, the R deme's population was fixed at 3380. From 8700.911 to 8630.0, it underwent a linear increase to 6354 individuals. Then, a exponential change brought the count to 4568 by 1207.295. Since then, from 1207.295 generations to the current day, the population has changed from 4568 to 328 at a exponential rate.
time_units: generations
demes:
  - name: R
    start_time: .inf
    epochs:
      - start_size: 3380
        end_time: 8700.911
      - start_size: 3380
        end_size: 6354
        end_time: 8630.0
        size_function: linear
      - start_size: 6354
        end_time: 1207.295
        end_size: 4568
        size_function: exponential
      - end_time: 0
        start_size: 4568
        end_size: 328
        size_function: exponential