Table 1 Correlation between characteristics of the relationship between the two dogs and behavioural changes observed in the surviving dog after the death of the other dog.

From: Domestic dogs (Canis familiaris) grieve over the loss of a conspecific

 

Playing less

Eating less

Level of activity reduced

Sleeping more

Fearfulness increased

Vocalisation increased

Attention seeking increased

Duration of the behavioural alteration

Duration of the relationship

0.169**

0.047

0.172**

0.096*

0.018

0.067

0.084

0.084

Type of relationship-friendly

0.214**

0.039

0.157**

0.137**

−0.005

0.004

0.152**

0.158**

Type of relationship-agonistic

0.009

−0.046

−0.007

−0.019

0.023

0.015

0.095

−0.012

Type of relationship-mutual tolerance

−0.077

0.051

0.033

0.039

0.075

0.008

0.026

0.026

Type of relationship-parental

0.163**

0.188**

0.150**

0.091

0.166**

0.095*

0.121*

0.201**

  1. *p < 0.05; **p < 0.01; ***p < 0.001.