Until 8413.0 generations ago, the P deme's population was fixed at 1729. From 8413.0 to 4243.5467, it underwent a exponential change to 4752 individuals. Then, a exponential decrease brought the count to 2903 by 718.0. Since then, from 718.0 generations to the current day, the population has reduced from 2903 to 316 at a linear rate.
time_units: generations
demes:
  - name: P
    start_time: .inf
    epochs:
      - start_size: 1729
        end_time: 8413.0
      - start_size: 1729
        end_size: 4752
        end_time: 4243.5467
        size_function: exponential
      - start_size: 4752
        end_time: 718.0
        end_size: 2903
        size_function: exponential
      - end_time: 0
        start_size: 2903
        end_size: 316
        size_function: linear