The O deme's size was 5022 until 7387.6912 generations ago, when it began a linear reduction, reaching 380 individuals by 4347.5863. After this period, the population underwent an exponential increase, reaching 4419 individuals by 3454.9821. From 3454.9821 generations ago to now, the population increased from 4419 to 7907 at a linear rate.
time_units: generations
demes:
  - name: O
    start_time: .inf
    epochs:
      - start_size: 5022
        end_time: 7387.6912
      - start_size: 5022
        end_size: 380
        end_time: 4347.5863
        size_function: linear
      - start_size: 380
        end_time: 3454.9821
        end_size: 4419
        size_function: exponential
      - end_time: 0
        start_size: 4419
        end_size: 7907
        size_function: linear