Initially, the P deme maintained a population of 3434 until 8489.4 generations ago. From 8489.4 to 8154.1424, its size increased exponentially to population size 3529. A linear change ensued, culminating in 643 individuals by 6396.34. Starting from 6396.34 generations ago, the population has changed from 643 to 7171, at a exponential rate.
time_units: generations
demes:
  - name: P
    start_time: .inf
    epochs:
      - start_size: 3434
        end_time: 8489.4
      - start_size: 3434
        end_size: 3529
        end_time: 8154.1424
        size_function: exponential
      - start_size: 3529
        end_time: 6396.34
        end_size: 643
        size_function: linear
      - end_time: 0
        start_size: 643
        end_size: 7171
        size_function: exponential