Skip to main content

Table 1 Colony contents data. Brood numbers and sex ratio parameters for 52 nests of H. nigrinervis collected from Grahamstown, South Africa in late summer (February).

From: Social complexity in bees is not sufficient to explain lack of reversions to solitary living over long time scales

Adult females/nest

Per capita eggs+larvae

Mean total brood (eggs, larvae prepupae and pupae)

Mean sex ratio of pupae (total male pupae: total female pupae)

Number of nests

1

0.292

0.75

0 (0:2, 2 nests)

24

2

0.60

2.13

0.22 (2:7, 9 nests)

15

3

0.503

2.50

0 (0:5, 5 nests)

8

4

0.313

3.50

0.33 (2:4, 3 nests)

4

5

0.60

3.00

-(0 nests)

1