The population size of Y deme stood at 4585 until a shift at 9563.09 generations ago, leading to a exponential reduction up to 8612.4 generations and 199 individuals. Following this, there was an linear change to 567 individuals by 2946.75. Since 2946.75, the population has seen a linear changed from 567 to 4182, continuing to the current time.
time_units: generations
demes:
  - name: Y
    start_time: .inf
    epochs:
      - start_size: 4585
        end_time: 9563.09
      - start_size: 4585
        end_size: 199
        end_time: 8612.4
        size_function: exponential
      - start_size: 199
        end_time: 2946.75
        end_size: 567
        size_function: linear
      - end_time: 0
        start_size: 567
        end_size: 4182
        size_function: linear