Until 5472.089 generations ago, the M deme's population was fixed at 4669. From 5472.089 to 4290.63, it underwent a exponential reduction to 2854 individuals. Then, a linear change brought the count to 2132 by 1252.0. Since then, from 1252.0 generations to the current day, the population has grew from 2132 to 6188 at a exponential rate.
time_units: generations
demes:
  - name: M
    start_time: .inf
    epochs:
      - start_size: 4669
        end_time: 5472.089
      - start_size: 4669
        end_size: 2854
        end_time: 4290.63
        size_function: exponential
      - start_size: 2854
        end_time: 1252.0
        end_size: 2132
        size_function: linear
      - end_time: 0
        start_size: 2132
        end_size: 6188
        size_function: exponential