Up to 7594.0 generations ago, the population of the X deme was steady at 2900. It then entered a phase of linear growth until 3894.23 generations and size 3060. Following this, there was a exponential change to 1968 individuals, lasting until 1947.4795. Since 1947.4795 generations ago, the population has changed from 1968 to 1241 at a exponential pace.
time_units: generations
demes:
  - name: X
    start_time: .inf
    epochs:
      - start_size: 2900
        end_time: 7594.0
      - start_size: 2900
        end_size: 3060
        end_time: 3894.23
        size_function: linear
      - start_size: 3060
        end_time: 1947.4795
        end_size: 1968
        size_function: exponential
      - end_time: 0
        start_size: 1968
        end_size: 1241
        size_function: exponential