Up until 9862.0 generations ago, the population of B deme was constant at 2766. It then entered a linear phase of change until 6148.2087 generations, reaching size 7886. This was succeeded by an exponential phase of change, leading to 2566 by 1205.505. From 1205.505 generations to present, the population has increased from 2566 to 5689 linearly.
time_units: generations
demes:
  - name: B
    start_time: .inf
    epochs:
      - start_size: 2766
        end_time: 9862.0
      - start_size: 2766
        end_size: 7886
        end_time: 6148.2087
        size_function: linear
      - start_size: 7886
        end_time: 1205.505
        end_size: 2566
        size_function: exponential
      - end_time: 0
        start_size: 2566
        end_size: 5689
        size_function: linear