Until 8247.0 generations ago, the B deme's population was fixed at 8816. From 8247.0 to 1658.1, it underwent a linear change to 3726 individuals. Then, a linear growth brought the count to 9938 by 835.6. Since then, from 835.6 generations to the current day, the population has changed from 9938 to 9714 at a exponential rate.
time_units: generations
demes:
  - name: B
    start_time: .inf
    epochs:
      - start_size: 8816
        end_time: 8247.0
      - start_size: 8816
        end_size: 3726
        end_time: 1658.1
        size_function: linear
      - start_size: 3726
        end_time: 835.6
        end_size: 9938
        size_function: linear
      - end_time: 0
        start_size: 9938
        end_size: 9714
        size_function: exponential