The deme of Q kept its population at 7692 until 9393.0 generations ago, when a exponential reduction ensued until 7215.0, to size 5373. Subsequently, a linear decrease changed the numbers to 217 individuals by 4460.0. Starting from 4460.0, the population has seen a change from 217 to 8137 at a exponential pace, continuing to this day.
time_units: generations
demes:
  - name: Q
    start_time: .inf
    epochs:
      - start_size: 7692
        end_time: 9393.0
      - start_size: 7692
        end_size: 5373
        end_time: 7215.0
        size_function: exponential
      - start_size: 5373
        end_time: 4460.0
        end_size: 217
        size_function: linear
      - end_time: 0
        start_size: 217
        end_size: 8137
        size_function: exponential