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Assessing body condition and energy budget components by scoring abdominal profiles in free-ranging pink-footed geese Anser brachyrhynchus

Madsen, Jesper and Klaassen, Marcel 2006, Assessing body condition and energy budget components by scoring abdominal profiles in free-ranging pink-footed geese Anser brachyrhynchus, Journal of avian biology, vol. 37, no. 3, pp. 283-287, doi: 10.1111/j.2006.0908-8857.03555.x.

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Title Assessing body condition and energy budget components by scoring abdominal profiles in free-ranging pink-footed geese Anser brachyrhynchus
Formatted title Assessing body condition and energy budget components by scoring abdominal profiles in free-ranging pink-footed geese Anser brachyrhynchus
Author(s) Madsen, Jesper
Klaassen, MarcelORCID iD for Klaassen, Marcel orcid.org/0000-0003-3907-9599
Journal name Journal of avian biology
Volume number 37
Issue number 3
Start page 283
End page 287
Publisher Wiley-Blackwell Munksgaard
Place of publication Copenhagen, Denmark
Publication date 2006-05
ISSN 0908-8857
1600-048X
Summary An abdominal profile index (API) was developed for pink-footed geese Anser brachyrhynchus as a measure of body condition. On basis of carcass analysis of 56 adult geese with known API prior to collection, we found significant linear relationships between API against body mass, abdominal fat and total energy content. Hence, changes in API reflect net energy intake rates. As an example of the applicability of the calibration, we compared APIs of individually marked geese before and after long migration episodes and estimated the cost of flight at 8.9 kJ/km. In addition we estimated gain rates at three major staging sites along the spring flyway indicating an increase in fueling rates with latitude. Calibration of APIs and energy contents offers new opportunities for field studies of waterfowl energetics.
Language eng
DOI 10.1111/j.2006.0908-8857.03555.x
Field of Research 060806 Animal Physiological Ecology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2006, Journal of avian biology
Persistent URL http://hdl.handle.net/10536/DRO/DU:30035112

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