The population size of F deme stood at 2589 until a shift at 4149.16 generations ago, leading to a linear increase up to 820.121 generations and 6443 individuals. Following this, there was an exponential change to 3220 individuals by 562.56. Since 562.56, the population has seen a exponential changed from 3220 to 8073, continuing to the current time.
time_units: generations
demes:
  - name: F
    start_time: .inf
    epochs:
      - start_size: 2589
        end_time: 4149.16
      - start_size: 2589
        end_size: 6443
        end_time: 820.121
        size_function: linear
      - start_size: 6443
        end_time: 562.56
        end_size: 3220
        size_function: exponential
      - end_time: 0
        start_size: 3220
        end_size: 8073
        size_function: exponential