Initially, the B deme's population count was 8109 until 7277.67 generations ago, at which point it began a exponential decrease until reaching size 1065 in 4504.0 generations. Post this phase, the deme experienced an exponential increase to 4443 individuals by 1246.937. From 1246.937 generations ago to today, the number of individuals has decreased from 4443 to 729 at a exponential growth rate.
time_units: generations
demes:
  - name: B
    start_time: .inf
    epochs:
      - start_size: 8109
        end_time: 7277.67
      - start_size: 8109
        end_size: 1065
        end_time: 4504.0
        size_function: exponential
      - start_size: 1065
        end_time: 1246.937
        end_size: 4443
        size_function: exponential
      - end_time: 0
        start_size: 4443
        end_size: 729
        size_function: exponential