Table 1.

Initial female mass, number of given spiderlings and mean spiderling mass before the experiment was started.

treatment	female mass (mg)	no. of added spiderlings	spiderling mass (average (mg))	spiderling mass (median (mg))	nreplicates
0% foster	28.6 ± 2.2	24.3 ± 1.6	2.38 ± 0.17	2.53	10
33% foster	27.2 ± 2.1	24.2 ± 1.8	2.43 ± 0.19	2.60	10
66% foster	24.7 ± 1.4	25.5 ± 1.4	2.05 ± 0.19	2.00	10
100% foster	26.7 ± 1.9	25.0 ± 1.2	2.20 ± 0.20	1.98	10
female	27.6 ± 2.0	n.a.	n.a.	n.a.	12