The file data.csv contains data on extinction time of 1,080 experimental populations. Six populations were accidentally destroyed (indicated by Days = −9999). Data columns include:
1. Tube.ID – A unique identifier for each population
2. Block – Block number
3. Startno – The initial population size, either x0 = 3 or x0 = 18
4. Start – Date population was initialized
5. End – Date population was scored extinct
6. Days – Duration of population persistence (extinction time) in days, i.e., End − Start
7. Tetracycline – Indicator for tetracycline addition (0: No, 1: Yes)