The J deme had a size of 5916 until 8747.188 generations ago. From 8747.188 generations to time 5989.469, its size increased linearly to 7823 individuals. After that, until 2096.0, the population had a exponential reduction to 7067 individuals. It then changed from 7067 to 5517, starting 2096.0 generations ago, until current times, at a exponential rate.
time_units: generations
demes:
  - name: J
    start_time: .inf
    epochs:
      - start_size: 5916
        end_time: 8747.188
      - start_size: 5916
        end_size: 7823
        end_time: 5989.469
        size_function: linear
      - start_size: 7823
        end_time: 2096.0
        end_size: 7067
        size_function: exponential
      - end_time: 0
        start_size: 7067
        end_size: 5517
        size_function: exponential