Up until 9916.0 generations ago, the population of O deme was constant at 2901. It then entered a linear phase of growth until 7997.0 generations, reaching size 6524. This was succeeded by an exponential phase of reduction, leading to 3323 by 3955.0. From 3955.0 generations to present, the population has grew from 3323 to 3911 exponentially.
time_units: generations
demes:
  - name: O
    start_time: .inf
    epochs:
      - start_size: 2901
        end_time: 9916.0
      - start_size: 2901
        end_size: 6524
        end_time: 7997.0
        size_function: linear
      - start_size: 6524
        end_time: 3955.0
        end_size: 3323
        size_function: exponential
      - end_time: 0
        start_size: 3323
        end_size: 3911
        size_function: exponential