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Table 4 Maximum likelihood parameters for three-population demographic model for Western Speckled Dace inhabiting Coleman Creek, Deep Creek, and Foskett Spring inferred using GADMA under fast and slow mutation rates. Values within brackets represent 95% confidence intervals estimated by bootstrapping observed site frequency spectra 100 times

From: Genetic approaches reveal a healthy population and an unexpectedly recent origin for an isolated desert spring fish

Fast Mutation rate (μ = 6.6 × 10−8 bp−1 gen−1)

Slow Mutation rate (μ = 1.2 × 10−8 bp−1 gen−1)

Log likelihood

− 9,239.14

Log likelihood

− 9,496.83

Population size [95% CI]

Population size [95% CI]

NA0

1,890 [1,789 – 1,923]

NA0

3,806 [3,611 – 4,001]

P110

879 [866–884]

P110 (= P111)

7,272 [7,053 – 7,491]

P111

5,863 [5,813 – 5,901]

  

P120 (= P121)

1,011 [998–1094]

P120 (= P121)

1,291 [1,082 – 1,500]

FS0

114 [105–125]

FS0

198 [167–229]

FS1

1,076 [1,023 – 1,088]

FS1

1,958 [1,637 – 2,279]

CC0 (= CC1)

955 [934–975]

CC0 (= CC1)

1,739 [1,561 – 1,917]

DC0 (= DC1)

1,136 [1,112 – 1,152]

DC0 (= DC1)

2,086 [1,812 – 2,360]

Migration rate per generation [95% CI]

Migration rate per generation [95% CI]

mp11-p12

1.1 × 10−2 [1.0–1.1 × 10−2]

mp11-p12

2.0 × 10−3 [1.8–2.2 × 10−3]

mDC-CC

8.0 × 10−3 [8.0–8.1 × 10−3]

mDC-CC

1.0 × 10−3 [0.9–1.1 × 10−3]

mCC-DC

4.0 × 10−3 [4.0–4.0 × 10−3]

mCC-DC

2.2 × 10−4 [2.1–2.3 × 10−4]

mDC-FS

3.1 × 10−3 [3.0–3.1 × 10−3]

mDC-FS

0

mFS-DC

0

mFS-DC

0

mCC-FS

2.7 × 10−2 [2.6–2.7 × 10−2]

mCC-FS

2.0 × 10−3 [1.9–2.1 × 10−3]

mFS-CC

1.6 × 10−2 [1.6–1.6 × 10−2]

mFS-CC

0

Divergence time in years [95% CI]

Divergence time in years [95% CI]

T1

3,783.8 [3,712.4 – 3,877.9]

T1

10,529 [9,989 – 11,069]

T2

587.5 [572.4–595.1]

T2

896 [812–980]

Population split ratio [95% CI]

Population split ratio [95% CI]

Sp11

46.5% [44.7–48.3%]

Sp11

55.5% [53.7–57.3%]

SpCC

88.7% [85.1–92.3%]

SpCC

84.7% [82.5–86.9%]

  1. NA0: size of ancestral population; P110: size of P11 immediately after divergence from ancestral population; P111: size of P11 immediately before second demographic split; P120: size of P12 immediately after divergence from ancestral population; FS0: size of Foskett Spring population immediately after divergence from P12; FS1: size of Foskett Spring population after exponential expansion; DC0: size of Deep Creek population immediately after bottleneck from P11; CC0: size of Coleman Creek population after divergence from P12; mab: migration rate from population a to b; T1: divergence time between P11 and P12; T2: divergence time between Foskett Spring and Coleman Creek population