The J deme's size was 4355 until 8761.461 generations ago, when it began a linear change, reaching 7534 individuals by 8484.4. After this period, the population underwent an linear growth, reaching 9085 individuals by 7393.287. From 7393.287 generations ago to now, the population changed from 9085 to 2755 at a linear rate.
time_units: generations
demes:
  - name: J
    start_time: .inf
    epochs:
      - start_size: 4355
        end_time: 8761.461
      - start_size: 4355
        end_size: 7534
        end_time: 8484.4
        size_function: linear
      - start_size: 7534
        end_time: 7393.287
        end_size: 9085
        size_function: linear
      - end_time: 0
        start_size: 9085
        end_size: 2755
        size_function: linear