An experimental test for indirect benefits in Drosophila melanogaster

Table 1 Analysis of variance for the productivity of replicate male-female pairs.

Source of variation	df	SS	F	P
treatment	1	14,088,222	2.16	0.142
age	1	59,503,879	9.12	0.003
interaction	1	10,970,819	1.68	0.195
error	726	4,736,707,541

Sources of variation include the effects of treatment (stud vs. dud ancestry), individual age (three vs. 15 days post-emergence), and their interaction. Productivity is a composite measure that includes the fecundity and fertility of the parents, and the subsequent viability to emergence of their offspring. Productivity values were squared prior to analysis.

ISSN: 2730-7182