Flight calls and orientation

A pilot study

Ole Næsbye Larsen, Bent Bach Andersen, Wibke Kropp, Thomas Rechl, Henrik Mouritsen

Publikation: Bidrag til bog/antologi/rapport/konference-proceedingBidrag til bog/antologiForskning

Resumé

 

In a pilot experiment a European Robin, Erithacus rubecula, expressing migratory restlessness with a stable orientation, was video filmed in the dark with an infrared camera and its directional migratory activity was recorded. The flight overhead of migrating conspecifics uttering nocturnal flight calls was simulated by sequential computer controlled activation of five loudspeakers placed in a linear array perpendicular to the bird's migration course. The bird responded to this stimulation by changing its migratory course in the direction of that of the ‘flying conspecifics' but after about 30 minutes it drifted back to its original migration course. The results suggest that songbirds migrating alone at night can use the flight calls from conspecifics as additional cues for orientation and that they may compare this information with other cues to decide what course to keep.

OriginalsprogEngelsk
TitelThe pressures of life : Molecules to migration
RedaktørerSteve Morris, Andre Vosloo
Antal sider6
Udgivelses stedItalien
ForlagMedimond
Publikationsdato2008
Sider569-574
ISBN (Trykt)978-88-7587-478-0
StatusUdgivet - 2008

Fingeraftryk

flight
migration
activation
video
experiment

Citer dette

Larsen, O. N., Andersen, B. B., Kropp, W., Rechl, T., & Mouritsen, H. (2008). Flight calls and orientation: A pilot study. I S. Morris, & A. Vosloo (red.), The pressures of life: Molecules to migration (s. 569-574). Italien: Medimond.
Larsen, Ole Næsbye ; Andersen, Bent Bach ; Kropp, Wibke ; Rechl, Thomas ; Mouritsen, Henrik. / Flight calls and orientation : A pilot study. The pressures of life: Molecules to migration. red. / Steve Morris ; Andre Vosloo. Italien : Medimond, 2008. s. 569-574
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note = "Stammer fra konferencen: Meeting of comparative physiologists & biochemists in Africa - MARA 2008. Afholdt i Masai Mara Game Reserve, Kenya Afholdelse startdato: 19.07.2008 Afholdelse slutdato: 25.07.2008 Konferencens nummer: 4th",
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Larsen, ON, Andersen, BB, Kropp, W, Rechl, T & Mouritsen, H 2008, Flight calls and orientation: A pilot study. i S Morris & A Vosloo (red), The pressures of life: Molecules to migration. Medimond, Italien, s. 569-574.

Flight calls and orientation : A pilot study. / Larsen, Ole Næsbye; Andersen, Bent Bach; Kropp, Wibke; Rechl, Thomas; Mouritsen, Henrik.

The pressures of life: Molecules to migration. red. / Steve Morris; Andre Vosloo. Italien : Medimond, 2008. s. 569-574.

Publikation: Bidrag til bog/antologi/rapport/konference-proceedingBidrag til bog/antologiForskning

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N2 -   In a pilot experiment a European Robin, Erithacus rubecula, expressing migratory restlessness with a stable orientation, was video filmed in the dark with an infrared camera and its directional migratory activity was recorded. The flight overhead of migrating conspecifics uttering nocturnal flight calls was simulated by sequential computer controlled activation of five loudspeakers placed in a linear array perpendicular to the bird's migration course. The bird responded to this stimulation by changing its migratory course in the direction of that of the ‘flying conspecifics' but after about 30 minutes it drifted back to its original migration course. The results suggest that songbirds migrating alone at night can use the flight calls from conspecifics as additional cues for orientation and that they may compare this information with other cues to decide what course to keep.

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Larsen ON, Andersen BB, Kropp W, Rechl T, Mouritsen H. Flight calls and orientation: A pilot study. I Morris S, Vosloo A, red., The pressures of life: Molecules to migration. Italien: Medimond. 2008. s. 569-574