The U deme's size was 5314 until 4041.376 generations ago, when it began a exponential change, reaching 8603 individuals by 1542.3605. After this period, the population underwent an linear reduction, reaching 3453 individuals by 1524.08. From 1524.08 generations ago to now, the population grew from 3453 to 4783 at a linear rate.
time_units: generations
demes:
  - name: U
    start_time: .inf
    epochs:
      - start_size: 5314
        end_time: 4041.376
      - start_size: 5314
        end_size: 8603
        end_time: 1542.3605
        size_function: exponential
      - start_size: 8603
        end_time: 1524.08
        end_size: 3453
        size_function: linear
      - end_time: 0
        start_size: 3453
        end_size: 4783
        size_function: linear