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Table 1 Absolute increase of plasma cortisol values in a stress reactivity test

From: Effects of domestication on biobehavioural profiles: a comparison of domestic guinea pigs and wild cavies from early to late adolescence

  

Early adolescence

Late adolescence

R1-I (ng/ml)

Median domestic

586.5

872

 

Median wild

1683

1609

U

0

0

p

0.001

0.001

R2-I (ng/ml)

Median domestic

1059.5

1308,5

 

Median wild

2438

2208

U

0

6

p

0.001

0.001

R3-I (ng/ml)

Median domestic

1052

1056

 

Median wild

2563

1836

U

4

2

p

0.001

0.001

R4-I (ng/ml)

Median domestic

717

714,5

 

Median wild

1927

1843

U

2

0

p

0.001

0.001

MAX-I (ng/ml)

Median domestic

1133.5

1436.5

 

Median wild

2574

2208

U

0

0

 

p

0.001

0.001

  1. Domestic guinea pigs and wild cavies were transferred from their familiar home enclosure to a novel enclosure for four hours. The absolute increase from initial values (I, in home enclosure) to values after 1 h (R1), 2 h (R2), 3 h (R3), and 4 h (R4) in the novel enclosure as well as from I to the maximal response value (MAX, maximum value of R1-R4) are shown. The responses of guinea pigs and cavies were compared during early and late adolescence. Ndomestic = 10, Nwild early = 8, Nwild late = 7. Significant p-values are highlighted in boldface.
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Frontiers in Zoology

ISSN: 1742-9994