The M deme's size was 2355 until 4127.2 generations ago, when it began a linear decrease, reaching 2120 individuals by 3712.61. After this period, the population underwent an exponential growth, reaching 7787 individuals by 3217.0. From 3217.0 generations ago to now, the population changed from 7787 to 3610 at a exponential rate.
time_units: generations
demes:
  - name: M
    start_time: .inf
    epochs:
      - start_size: 2355
        end_time: 4127.2
      - start_size: 2355
        end_size: 2120
        end_time: 3712.61
        size_function: linear
      - start_size: 2120
        end_time: 3217.0
        end_size: 7787
        size_function: exponential
      - end_time: 0
        start_size: 7787
        end_size: 3610
        size_function: exponential