The N deme had a size of 4271 until 6420.373 generations ago. From 6420.373 generations to time 2126.26, its size reduced linearly to 3738 individuals. After that, until 993.51, the population had a exponential change to 2901 individuals. It then grew from 2901 to 3591, starting 993.51 generations ago, until current times, at a exponential rate.
time_units: generations
demes:
  - name: N
    start_time: .inf
    epochs:
      - start_size: 4271
        end_time: 6420.373
      - start_size: 4271
        end_size: 3738
        end_time: 2126.26
        size_function: linear
      - start_size: 3738
        end_time: 993.51
        end_size: 2901
        size_function: exponential
      - end_time: 0
        start_size: 2901
        end_size: 3591
        size_function: exponential