Initially, the J deme maintained a population of 6050 until 8615.8 generations ago. From 8615.8 to 8198.205, its size changed exponentially to population size 7823. A exponential decrease ensued, culminating in 6347 individuals by 1542.039. Starting from 1542.039 generations ago, the population has decreased from 6347 to 5649, at a linear rate.
time_units: generations
demes:
  - name: J
    start_time: .inf
    epochs:
      - start_size: 6050
        end_time: 8615.8
      - start_size: 6050
        end_size: 7823
        end_time: 8198.205
        size_function: exponential
      - start_size: 7823
        end_time: 1542.039
        end_size: 6347
        size_function: exponential
      - end_time: 0
        start_size: 6347
        end_size: 5649
        size_function: linear