Table 1. Parameters and values used in the PVA for the basic model.
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Category |
Parameter |
Value (SD) |
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Scenario settings |
No. of iterations |
500 |
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No. of years |
100 |
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Extinction definition |
1 sex remains |
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Species description |
Inbreeding depression |
none |
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Environmental concordance in survival and reproduction |
1 |
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Reproduction system |
Mating system |
polygyny |
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Age at first breeding for F |
2 yr |
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Age at first breeding for M |
2 yr |
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Maximum reproductive age |
15 |
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Max. no. progeny per year |
1 |
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% M at birth |
50 |
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Reproduction rates |
% adult females breeding (EV) |
100 (10) |
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% adult females with litter size of 1 |
70 |
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Mate monopolization |
% males in breeding pool |
100 |
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Mortality rates (%) |
Females – age 0 to 1 (SD) |
20 (3) |
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Females – age 1 to 2 (SD) |
25 (3) |
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Females – age >2 (SD) |
25 (3) |
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Males – age 0 to 1 (SD) |
20 (3) |
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Males – age 1 to 2 (SD) |
25 (3) |
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Males – age >2 (SD) |
25 (3) |
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Dispersal |
Age range |
1–2 yr |
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Dispersing sex |
both |
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% survival of dispersers |
70 |
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Annual dispersal prob. among populations |
0.5% |
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Initial population size |
Stable age distribution |
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Carrying capacity |
Defined by initial population size |
(5) |
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