Up until 2744.0 generations ago, the population of P deme was constant at 7239. It then entered a exponential phase of reduction until 2158.6677 generations, reaching size 3982. This was succeeded by an linear phase of growth, leading to 4520 by 244.056. From 244.056 generations to present, the population has changed from 4520 to 2699 exponentially.
time_units: generations
demes:
  - name: P
    start_time: .inf
    epochs:
      - start_size: 7239
        end_time: 2744.0
      - start_size: 7239
        end_size: 3982
        end_time: 2158.6677
        size_function: exponential
      - start_size: 3982
        end_time: 244.056
        end_size: 4520
        size_function: linear
      - end_time: 0
        start_size: 4520
        end_size: 2699
        size_function: exponential