Table 1 Summary statistics for the fifteen studbooks included in the main analysis (N = 37,484 individuals).

From: Offspring survival changes over generations of captive breeding

Species (scope of studbook1; IUCN status)

N2

Ne3

First record (year)

Age (days) at maturity female; male

Pedigree f (mean, sd, max) dam (D); sire (S); offspring (O)

Captive generations (mean, sd, max) dam (D); sire (S)

Age at breeding (days) (min, mean, max, sd) dam (D); sire (S)

Prehensile-tailed skink

534

40.1

1969

45024; 57024

D: 0, 0, 0

D: 0.208, 0.431, 1.750

D: 636, 3696, 9114, 1808

Corucia zebrata (AZA; N/A)

S: 0, 0, 0

S: 0.301, 0.527, 1.750

S: 576, 3897, 13000, 1979

O: 0.012, 0.049, 0.250

  

Western swamp tortoise

581

28.9

1949

29104; 21004

D: 0, 0, 0

D: 0.184, 0.388, 1

D: 3261, 11686, 22388, 5062

Pseudemydura umbrina (ZAA; CR)

S: 0, 0, 0

S: 0.201, 0.401, 1

S: 2156, 11652, 25243, 5999

O: 0, 0, 0

  

Radiated tortoise

757

58.0

1900

37204; 30004

D: 0, 0, 0

D: 0.178, 0.404, 1.5

D: 3907, 12951, 22795, 5018

Astrochelys radiata (AZA; CR)

S: 0, 0, 0

S: 0.135, 0.342, 1

S: 3043, 12716, 23835, 5474

O: 0, 0, 0

  

Tasmanian devil

1111

163.4

1982

730; 730

D: 0.012, 0.052, 0.375

D: 1.348, 1.204, 5.408

D: 231, 944, 2470, 295

Sarcophilus harrisii (ZAA; EN)

S: 0.007, 0.033, 0.250

S: 1.084, 1.152, 4.500

S: 231, 1177, 2466, 414

O: 0.016, 0.049, 0.375

  

Cheetah

4932

222.5

1850

456; 456

D: 0.010, 0.034, 0.250

D: 1.567, 1.387, 5.353

D: 651, 2313, 6084, 770

Acinonyx jubatus (INTL; VU)

S: 0.011, 0.042, 0.250

S: 1.339, 1.290, 5.156

S: 590, 2535, 6329, 981

O: 0.022, 0.055, 0.268

  

Meerkat

1659

17.0

1908

365; 365

D: 0.078, 0.132, 0.406

D: 1.828, 1.244, 5.391

D: 217, 1793, 4918, 925

Suricata suricatta (AZA; LC)

S: 0.073, 0.146, 0.434

S: 1.594, 1.348, 5.250

S: 89, 1836, 4798, 863

O: 0.115, 0.156, 0.516

  

Red wolf

958

108.0

1966

3304; 3304

D: 0.036, 0.035, 0.125

D: 2.985, 1.624, 6.059

D: 345, 2056, 4033, 818

Canis rufus (AZA; CR)

S: 0.032, 0.034, 0.250

S: 2.935, 1.601, 6.133

S: 722, 2288, 5499, 1037

O: 0.055, 0.039, 0.250

  

African wild dog

5391

81.1

1887

639; 639

D: 0.058, 0.117, 0.503

D: 2.211, 1.462, 6.594

D: 361, 1698, 6880, 710

Lycaon pictus (INTL; EN)

S: 0.065, 0.122, 0.503

S: 2.037, 1.477, 6.594

S: 361, 2070, 6721, 982

O: 0.107, 0.137, 0.594

  

Red panda

2926

382.2

1868

550; 550

D: 0.020, 0.035, 0.274

D: 2.828, 1.723, 6.969

D: 357, 2005, 5157, 905

Ailurus fulgens (INTL; EN)

S: 0.020, 0.035, 0.298

S: 2.714, 1.767, 7.098

S: 361, 2329, 6945, 1120

O: 0.036, 0.048, 0.375

  

European mink

1480

74.5

1932

323; 323

D: 0.084, 0.111, 0.504

D: 4.218, 2.758, 10.397

D: 282, 919, 3309, 567

Mustela lutreola (EAZA; CR)

S: 0.083, 0.108, 0.481

S: 4.195, 2.955, 10.514

S: 295, 998, 3645, 647

O: 0.117, 0.119, 0.504

  

Scimitar-horned oryx

6435

216.0

1872

639; 2104

D: 0.086, 0.124, 0.646

D: 2.938, 1.848, 7.870

D: 564, 2552, 10429, 1408

Oryx dammah (INTL; EW)

S: 0.087, 0.126, 0.601

S: 2.962, 1.879, 8.027

S: 518, 2478, 8359, 1334

O: 0.112, 0.137, 0.675

  

Eastern bongo

2443

174.9

1931

806; 914

D: 0.066, 0.100, 0.614

D: 2.966, 1.538, 6.812

D: 396, 2471, 7004, 1250

Tragelaphus eurycerus isaaci (INTL; CR)

S: 0.066, 0.106, 0.614

S: 2.933, 1.512, 6.166

S: 582, 2607, 7054, 1153

O: 0.086, 0.110, 0.614

  

Red-ruffed lemur

1737

171.4

1959

609; 650

D: 0.085, 0.084, 0.375

D: 2.576, 1.217, 5.484

D: 707, 3105, 10925, 1487

Varecia rubra (INTL; CR)

S: 0.097, 0.086, 0.445

S: 2.651, 1.261, 5.672

S: 719, 3414, 10990, 1761

O: 0.138, 0.102, 0.445

  

Black-and-white ruffed lemur

3516

275.6

1959

605; 649

D: 0.046, 0.077, 0.375

D: 2.353, 1.295, 5.969

D: 292, 3017, 9911, 1598

Varecia variegata (INTL; CR)

S: 0.053, 0.081, 0.344

S: 2.175, 1.358, 5.805

S: 568, 3270, 14335, 1777

O: 0.085, 0.101, 0.438

  

Goeldi’s monkey

3024

187.5

1913

365; 395

D: 0.019, 0.049, 0.375

D: 2.648, 1.475, 6.326

D: 441, 2304, 7763, 1144

Callimico goeldii (INTL; VU)

S: 0.019, 0.049, 0.375

S: 2.621, 1.496, 6.336

S: 184, 2471, 7518, 1221

O: 0.034, 0.069, 0.500

  
  1. 1INTL International (WAZA studbook), AZA Association of Zoos & Aquariums, EAZA European Association of Zoos and Aquaria, ZAA Zoo and Aquarium Association Australasia.
  2. 2IUCN Red List Status75: N/A not recorded, EW extinct in the wild, CR critically endangered, EN endangered, VU vulnerable, LC least concern.
  3. 2With complete data (both parents known, no missing values), 9 outliers removed as per methods.
  4. 3Ne obtained from PMx using whole studbook prior to data filtering. PMx estimates Ne from Wright76.
  5. 4No AnAge record available, so age obtained from PMx.
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