Up to 9943.0 generations ago, the population of the D deme was steady at 3472. It then entered a phase of linear decrease until 8308.998 generations and size 306. Following this, there was a linear increase to 6651 individuals, lasting until 3632.0. Since 3632.0 generations ago, the population has changed from 6651 to 4205 at a linear pace.
time_units: generations
demes:
  - name: D
    start_time: .inf
    epochs:
      - start_size: 3472
        end_time: 9943.0
      - start_size: 3472
        end_size: 306
        end_time: 8308.998
        size_function: linear
      - start_size: 306
        end_time: 3632.0
        end_size: 6651
        size_function: linear
      - end_time: 0
        start_size: 6651
        end_size: 4205
        size_function: linear