Enlighten
Research publications by members of the University of Glasgow
home > services > Enlighten

The energetic cost of short flights in birds

Nudds, R.L., and Bryant, D.M. (2000) The energetic cost of short flights in birds. Journal of Experimental Biology, 203 (10). pp. 1561-1572. ISSN 0022-0949

Full text not currently available from Enlighten.

Publisher's URL: http://jeb.biologists.org/cgi/content/abstract/203/10/1561

Abstract

Many small birds perform short flights, for which takeoffs, ascents and descents form a large component of the total flight time and which are characterised by low airspeeds. Using the doubly-labelled water technique, zebra finches Taeniopygia guttata engaging in repeated short flights were found to expend 13.65 kJ more than 'non-flying' controls, which equated to a flight expenditure of 27.8 times their basal metabolic rate. This is over three times the predicted flight expenditure derived from existing aerodynamic models. These data were used to determine a coefficient (0.11) for converting the mechanical power derived from aerodynamic models into metabolic power. An equation is presented, based on body mass, which can be used to predict the costs of short flights in ecological and behavioural studies of birds.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Bryant, Prof David
Authors: Nudds, R.L., and Bryant, D.M.
Subjects:Q Science > QH Natural history > QH301 Biology
Q Science > QL Zoology
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:Journal of Experimental Biology
ISSN:0022-0949

University Staff: Request a correction | Enlighten Editors: Update this record