TABLE 3.

Broad-sense heritability estimates for age-specific metabolic rates in adultD. melanogaster males

	μl CO2 (hr · fly)		μl CO2 (hr · mg)
	F	H2	F	H2
First CO2 measurement
Day 5	2.1***	0.07	2.3***	0.08
Day 16	15.9***	0.48	5.6***	0.24
Day 29	13.1***	0.43	11.6***	0.41
Day 47	6.7***	0.30	6.2***	0.28
Second CO2 measurement
Day 5	3.8***	0.14	3.0***	0.18
Day 16	13.4***	0.45	5.7***	0.28
Day 29	6.6***	0.26	26.6***	0.62
Day 47	6.4***	0.29	5.5***	0.25

^***P < 0.001.