Initially, the U deme's population count was 3811 until 9456.2573 generations ago, at which point it began a linear change until reaching size 1179 in 8527.0 generations. Post this phase, the deme experienced an linear growth to 4582 individuals by 4685.7785. From 4685.7785 generations ago to today, the number of individuals has changed from 4582 to 5932 at a exponential growth rate.
time_units: generations
demes:
  - name: U
    start_time: .inf
    epochs:
      - start_size: 3811
        end_time: 9456.2573
      - start_size: 3811
        end_size: 1179
        end_time: 8527.0
        size_function: linear
      - start_size: 1179
        end_time: 4685.7785
        end_size: 4582
        size_function: linear
      - end_time: 0
        start_size: 4582
        end_size: 5932
        size_function: exponential