Initially, the D deme maintained a population of 6464 until 7100.0 generations ago. From 7100.0 to 4123.6704, its size decreased linearly to population size 6230. A exponential change ensued, culminating in 6717 individuals by 1730.2443. Starting from 1730.2443 generations ago, the population has reduced from 6717 to 552, at a exponential rate.
time_units: generations
demes:
  - name: D
    start_time: .inf
    epochs:
      - start_size: 6464
        end_time: 7100.0
      - start_size: 6464
        end_size: 6230
        end_time: 4123.6704
        size_function: linear
      - start_size: 6230
        end_time: 1730.2443
        end_size: 6717
        size_function: exponential
      - end_time: 0
        start_size: 6717
        end_size: 552
        size_function: exponential