Table 1.
Summary of numerical input values for baseline demographic models.
| Model input parameter | Baseline value |
|---|---|
| GENERAL MODEL SETUP | |
| Model timestep | 6 months |
| Number of iterations for each scenario | 1,000 |
| Number of populations | 2: Focal population, Neighborhood |
| POPULATION DEMOGRAPHICS | |
| Initial population size | Focal population = 50; Neighborhood = 200 |
| Sex ratio (initial population and new litters) | 50:50 |
| Age of first breeding | 6 months (females and males) |
| Female breeding rate (producing litters) | 48% (“winter”); 92% (“summer”) |
| Average annual number of litters per female | 1.4 |
| Average litter size | 3.5 |
| Male breeding rate | 100% of intact males available for breeding |
| Kitten mortality to 6 months | 75% (low density) to 90% (high density) |
| Adult mortality (6-month interval) | 5.2% (10% annually) |
| METAPOPULATION STRUCTURE | |
| Disperser characteristics | Age 6–24 months; 75% male |
| Mean dispersal rate per timestep | 2% of source population size |
| Cost to dispersal (survival rate) | 75% survival of dispersers |
| Litter abandonment (per timestep) | Mean of 3 kittens into focal population |