The population size of O deme stood at 7842 until a shift at 8765.21 generations ago, leading to a exponential change up to 3915.78 generations and 5787 individuals. Following this, there was an exponential change to 6370 individuals by 1142.15. Since 1142.15, the population has seen a exponential reduced from 6370 to 680, continuing to the current time.
time_units: generations
demes:
  - name: O
    start_time: .inf
    epochs:
      - start_size: 7842
        end_time: 8765.21
      - start_size: 7842
        end_size: 5787
        end_time: 3915.78
        size_function: exponential
      - start_size: 5787
        end_time: 1142.15
        end_size: 6370
        size_function: exponential
      - end_time: 0
        start_size: 6370
        end_size: 680
        size_function: exponential