Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/5595

Authors: Gagliardo, A.*
Savini, M.*
De Santis, A.*
Dell’Omo, G.*
Ioalè, P.*
Title: Re-orientation in clock-shifted homing pigeons subjected to a magnetic disturbance: a study with GPS data loggers
Title of journal: Behavioral Ecology and Sociobiology
Series/Report no.: 2/64 (2009)
Publisher: Springer-Verlag
Issue Date: Dec-2009
DOI: 10.1007/s00265-009-0847-x
Keywords: Pigeons
Sun compass
Magnetic compass
Tracking
Orientation
Abstract: Some authors have proposed that homing pigeons are able to correct the error in orientation following a phase-shift treatment by using the magnetic compass reference. They reported that clock-shifted pigeons bearing magnets display a greater deflection compared to magnetically unmanipulated clock-shifted birds. However, this hypothesis tested by recording pigeons’ vanishing bearings has led to contradictory results. The present study reports pigeons’ tracks recorded with a GPS and shows that clockshifted pigeons bearing magnets displayed a greater deviation through the whole route compared to the magnetically unmanipulated shifted pigeons. Moreover, the analysis of the tracks shows that the birds belonging to both experimental groups stop in coincidence with their subjective night. When re-starting their journey, the birds corrected the clock-shift induced error in orientation, but the magnetically manipulated pigeons were less efficient in doing so. Our results are consistent with the hypothesis that homing pigeons released from unfamiliar location re-orient after clock shift by using the magnetic compass.
Appears in Collections:04.05.09. Environmental magnetism
03.04.08. Instruments and techniques
Papers Published / Papers in press

Files in This Item:

File SizeFormatVisibility
Gagliardo_et_al_2009.pdf504.96 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA