Up to 9886.0 generations ago, the population of the O deme was steady at 4667. It then entered a phase of linear reduction until 7280.4 generations and size 3566. Following this, there was a linear growth to 9883 individuals, lasting until 2938.5. Since 2938.5 generations ago, the population has changed from 9883 to 1252 at a linear pace.
time_units: generations
demes:
  - name: O
    start_time: .inf
    epochs:
      - start_size: 4667
        end_time: 9886.0
      - start_size: 4667
        end_size: 3566
        end_time: 7280.4
        size_function: linear
      - start_size: 3566
        end_time: 2938.5
        end_size: 9883
        size_function: linear
      - end_time: 0
        start_size: 9883
        end_size: 1252
        size_function: linear