|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
Journal of Experimental Biology, Vol 201, Issue 21 2953-2959, Copyright © 1998 by Company of Biologists
JOURNAL ARTICLES |
AE Williams and TJ Bradley
Department of Ecology and Evolutionary Biology, University of California, Irvine 92697, USA.
We measured CO2 and H2O release from individual fruit flies from five populations of Drosophila melanogaster selected for resistance to desiccation (D flies). Our previous work found that these flies survive for an extended period in dry air, have an increase in the peak height and frequency of CO2 release, as measured by the standard error of a linear regression (SER) of CO2 release for the entire survival period, and have reduced water loss rates (VH2O) compared with their control or ancestor populations. In the present study, we examined the following respiratory characteristics: VCO2, VH2O, the SER of CO2 release and the ratio of VCO2 to VH2O in the D flies. Correlations between these characters were calculated in order to determine the effect of respiratory pattern on water loss. We found that, within the D flies, neither periodic release of CO2 nor an increased SER for CO2 release was associated with reduced water loss. In addition, an increased SER was positively correlated with both an increased water loss rate and a decreased survival time. Therefore, although selection for desiccation resistance leads to both an increased SER and a decreased rate of water loss in the D flies, the increased SER does not significantly reduce respiratory water loss.
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati 
Twitter What's this?
This article has been cited by other articles:
|
|
 |
|
  M. K. Burke and M. R. Rose Experimental evolution with Drosophila Am J Physiol Regulatory Integrative Comp Physiol, June 1, 2009; 296(6): R1847 - R1854. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 H. L. Contreras and T. J. Bradley Metabolic rate controls respiratory pattern in insects J. Exp. Biol., February 1, 2009; 212(3): 424 - 428. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. Heymann and F.-O. Lehmann The significance of spiracle conductance and spatial arrangement for flight muscle function and aerodynamic performance in flying Drosophila J. Exp. Biol., May 1, 2006; 209(9): 1662 - 1677. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. R. B. Lighton and E. A. Ottesen To DGC or not to DGC: oxygen guarding in the termite Zootermopsis nevadensis (Isoptera: Termopsidae) J. Exp. Biol., December 15, 2005; 208(24): 4671 - 4678. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. R. B. Lighton, P. E. Schilman, and D. A. Holway The hyperoxic switch: assessing respiratory water loss rates in tracheate arthropods with continuous gas exchange J. Exp. Biol., December 1, 2004; 207(25): 4463 - 4471. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. G. Folk and T. J. Bradley The evolution of recovery from desiccation stress in laboratory-selected populations of Drosophila melanogaster J. Exp. Biol., July 1, 2004; 207(15): 2671 - 2678. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. L. Chown and A. L. V. Davis Discontinuous gas exchange and the significance of respiratory water loss in scarabaeine beetles J. Exp. Biol., October 15, 2003; 206(20): 3547 - 3556. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. G. Folk and T. J. Bradley Evolved patterns and rates of water loss and ion regulation in laboratory-selected populations of Drosophila melanogaster J. Exp. Biol., August 15, 2003; 206(16): 2779 - 2786. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. G. Gibbs, F. Fukuzato, and L. M. Matzkin Evolution of water conservation mechanisms in Drosophila J. Exp. Biol., April 1, 2003; 206(7): 1183 - 1192. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. D. Duncan and M. J. Byrne Respiratory airflow in a wingless dung beetle J. Exp. Biol., August 15, 2002; 205(16): 2489 - 2497. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. G. Folk, C. Han, and T. J. Bradley Water acquisition and partitioning in Drosophila melanogaster: effects of selection for desiccation-resistance J. Exp. Biol., January 10, 2001; 204(19): 3323 - 3331. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. Rourke Geographic and altitudinal variation in water balance and metabolic rate in a California grasshopper, Melanoplus sanguinipes J. Exp. Biol., January 9, 2000; 203(17): 2699 - 2712. [Abstract] [PDF]
|
|
|
|
|
|
S. Chown and P Holter Discontinuous gas exchange cycles in aphodius fossor (Scarabaeidae): a test of hypotheses concerning origins and mechanisms J. Exp. Biol., January 1, 2000; 203(2): 397 - 403. [Abstract] [PDF]
|
|
|
|
|
|
B. Rourke and A. Gibbs Effects of lipid phase transitions on cuticular permeability: model membrane and in situ studies J. Exp. Biol., January 11, 1999; 202(22): 3255 - 3262. [Abstract] [PDF]
|
|
|
|
|
|
A. Gibbs Laboratory selection for the comparative physiologist J. Exp. Biol., January 10, 1999; 202(20): 2709 - 2718. [Abstract] [PDF]
|
|
