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Table 2 Attributes of the option females under the different scenarios, whether the partner was chosen as a communal nursing partner or not

From: Female nursing partner choice in a population of wild house mice (Mus musculus domesticus)

Attributes of the option females

Focal chose CN

Focal chose SN

Chosen

Non-chosen

Non-chosen

Age of pups (d)

2.7 ± 0.5

8.0 ± 0.7

6.6 ± 0.6

Litter size difference

3.7 ± 0.7

2.9 ± 0.5

2.2 ± 0.1

Number of boxes shared

2.7 ± 0.2

2.7 ± 0.2

2.3 ± 0.2

Age difference between females (d)

141.8 ± 24.4

190.7 ± 28.6

136.5 ± 16.4

Age of option female

297.2 ± 23.8

301.0 ± 30.8

336.3 ± 16.6

Pairwise relatedness

0.30 ± 0.04

0.26 ± 0.03

0.19 ± 0.04

Association time (min)

4303.1 ± 720.3

2098.3 ± 402.4

2458.0 ± 368.9

  1. Attributes are given as mean ± SE. CN Communal nursing, SN Solitary nursing; Litter size difference, the absolute difference between focal female litter size and the option female’s litter size; Age difference between females is given as absolute days, and is calculated from the date the focal female gave birth