The deme of L kept its population at 4079 until 8545.5 generations ago, when a linear change ensued until 6974.0, to size 2863. Subsequently, a linear change changed the numbers to 6365 individuals by 3179.0. Starting from 3179.0, the population has seen a change from 6365 to 4547 at a linear pace, continuing to this day.
time_units: generations
demes:
  - name: L
    start_time: .inf
    epochs:
      - start_size: 4079
        end_time: 8545.5
      - start_size: 4079
        end_size: 2863
        end_time: 6974.0
        size_function: linear
      - start_size: 2863
        end_time: 3179.0
        end_size: 6365
        size_function: linear
      - end_time: 0
        start_size: 6365
        end_size: 4547
        size_function: linear