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Table 2 Results of different model parameters during the next 50 years and sensitivity analysis

From: Can we reestablish a self-sustaining population? A case study on reintroduced Crested Ibis with population viability analysis

Description Growth rate (r ± SD) Extinction probability (%) Final population size Sensitivity index (Sx)
Present conditions 0.084 ± 0.071 0 367
K = 840 0.083 ± 0.069 0 724 0.9728
K = 210 0.081 ± 0.080 0 178 1.0300
Females:males = 1:2 0.085 ± 0.091 0 353 − 0.1142
Females:males = 2:1 0.024 ± 0.071 0 286 0.6608
Females:males = 1:3 0.034 ± 0.092 0 286 − 0.4414
Females:males = 3:1 − 0.017 ± 0.085 1 82 1.5531
Females:males = 1:4 − 0.012 ± 0.098 6 114 − 1.1490
Females:males = 4:1 − 0.037 ± 0.098 13 28 1.5395
10% higher frequency of catastrophes 0.080 ± 0.073 0 358 − 0.2452
10% lower frequency of catastrophes 0.087 ± 0.070 0 362 0.1362
50% higher frequency of catastrophes 0.066 ± 0.081 0 350 − 0.0926
50% lower frequency of catastrophes 0.100 ± 0.061 0 371 − 0.0218
10% higher adult mortality 0.081 ± 0.073 0 362 − 0.1362
10% lower adult mortality 0.088 ± 0.071 0 363 0.1090
10% higher subadult mortality 0.081 ± 0.072 0 362 − 0.1362
10% lower subadult mortality 0.086 ± 0.071 0 361 0.1635
10% higher fledgling mortality 0.069 ± 0.073 0 352 − 0.4087
10% lower fledgling mortality 0.096 ± 0.072 0 370 − 0.0817