Flight calls and orientation

A pilot study

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

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

Abstract

 

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.

Original languageEnglish
Title of host publicationThe pressures of life : Molecules to migration
EditorsSteve Morris, Andre Vosloo
Number of pages6
Place of PublicationItalien
PublisherMedimond
Publication date2008
Pages569-574
ISBN (Print)978-88-7587-478-0
Publication statusPublished - 2008

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Cite this

Larsen, O. N., Andersen, B. B., Kropp, W., Rechl, T., & Mouritsen, H. (2008). Flight calls and orientation: A pilot study. In S. Morris, & A. Vosloo (Eds.), The pressures of life: Molecules to migration (pp. 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. editor / Steve Morris ; Andre Vosloo. Italien : Medimond, 2008. pp. 569-574
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Larsen, ON, Andersen, BB, Kropp, W, Rechl, T & Mouritsen, H 2008, Flight calls and orientation: A pilot study. in S Morris & A Vosloo (eds), The pressures of life: Molecules to migration. Medimond, Italien, pp. 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. ed. / Steve Morris; Andre Vosloo. Italien : Medimond, 2008. p. 569-574.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

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N1 - 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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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.

AB -   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. In Morris S, Vosloo A, editors, The pressures of life: Molecules to migration. Italien: Medimond. 2008. p. 569-574