The population size of B deme stood at 1242 until a shift at 6253.0 generations ago, leading to a linear increase up to 4176.5 generations and 4826 individuals. Following this, there was an exponential decrease to 725 individuals by 1090.13. Since 1090.13, the population has seen a linear reduced from 725 to 561, continuing to the current time.
time_units: generations
demes:
  - name: B
    start_time: .inf
    epochs:
      - start_size: 1242
        end_time: 6253.0
      - start_size: 1242
        end_size: 4826
        end_time: 4176.5
        size_function: linear
      - start_size: 4826
        end_time: 1090.13
        end_size: 725
        size_function: exponential
      - end_time: 0
        start_size: 725
        end_size: 561
        size_function: linear