Fuelling rates of garganey (Anas querquedula) staging in the Camargue, Southern France, during spring migration

Guillemain, Matthieu, Fritz, Herve, Klaassen, Marcel, Johnson, Alan R. and Hafner, Heinz 2004, Fuelling rates of garganey (Anas querquedula) staging in the Camargue, Southern France, during spring migration, Journal of ornithology, vol. 145, no. 2, pp. 152-158, doi: 10.1007/s10336-004-0026-9.

Title Fuelling rates of garganey (Anas querquedula) staging in the Camargue, Southern France, during spring migration
Author(s) Guillemain, Matthieu
Fritz, Herve
Klaassen, MarcelORCID iD for Klaassen, Marcel orcid.org/0000-0003-3907-9599
Johnson, Alan R.
Hafner, Heinz
Journal name Journal of ornithology
Volume number 145
Issue number 2
Start page 152
End page 158
Total pages 7
Publisher Springer
Place of publication Berlin, Eng.
Publication date 2004-04
ISSN 0021-8375
Keyword(s) Anas querquedula
Body condition
Fuelling rates
Science & Technology
Life Sciences & Biomedicine
Summary Most species of long-distance migratory birds put on energy stores to fuel their travels. However, recent studies have highlighted the potential costs associated with carrying too much fuel, either through increased predation risk or decreased flight efficiency. Consequently, it is now widely accepted that migratory birds should carry optimal rather than maximum fuel loads. Information from 372 garganey (Anas querquedula) ringed and recaptured at least once during the same spring in the Camargue, southern France, was used to document fuelling rates of individual ducks in relation to environmental variation and individual variation in condition. On average, garganey added very little fuel stores in the Camargue (mean gain per day = 0.33 g, less than 0.5% of mean body-mass in total over an average stay of 5 days). Fuelling rates were negatively correlated with body mass at capture, but it cannot be excluded that this pattern was a statistical artefact. Given their body-mass at ringing, garganey could potentially still fly long distances when they stop in the Camargue. It is therefore likely that the aim of their stay in southern France is more for resting than refuelling, a finding that may have implications for the proper management of stop-over sites.
Language ger
DOI 10.1007/s10336-004-0026-9
Field of Research 060201 Behavioural Ecology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2004, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075847

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