Up to 7920.4 generations ago, the population of the J deme was steady at 1029. It then entered a phase of exponential change until 6960.0 generations and size 5924. Following this, there was a exponential reduction to 1716 individuals, lasting until 2048.12. Since 2048.12 generations ago, the population has changed from 1716 to 7749 at a exponential pace.
time_units: generations
demes:
  - name: J
    start_time: .inf
    epochs:
      - start_size: 1029
        end_time: 7920.4
      - start_size: 1029
        end_size: 5924
        end_time: 6960.0
        size_function: exponential
      - start_size: 5924
        end_time: 2048.12
        end_size: 1716
        size_function: exponential
      - end_time: 0
        start_size: 1716
        end_size: 7749
        size_function: exponential