Effect of photoperiod on metabolic rate in a subtropical population of Drosophila melanogaster.
1. Descendents of a Florida, U.S.A. population of Drosophila melanogaster were reared under short (8 hr light: 16 hr dark) and long (16 hr light: 8 hr dark) photoperiods. 2. Flies reared under short photoperiods had higher rates of metabolism at 21 degrees C. 3. Because genetic background (iso-female line) affects metabolic rates, statistical control through analysis of covariance was necessary to isolate the effects of photoperiod on metabolic rates. 4. These results on a subtropical population of D. melanogaster are similar to those found on a temperate population of the same species.
Lanciani
C A
CA
Department of Zoology, University of Florida, Gainesville 32611.
Anderson
J F
JF
Giesel
J T
JT
D000818:Animals; D001481:Basal Metabolism / Q000528:radiation effects*; D004331:Drosophila melanogaster / Q000378:metabolism* / Q000528:radiation effects; D005431:Florida; D008027:Light; D010507:Periodicity