Northern magnetic displacements trigger endogenous fuelling responses in a naive bird migrant
(2012) In Behavioral Ecology and Sociobiology 66(5). p.819-821- Abstract
- In a previous study, we found that juvenile northern wheatears (Oenanthe oenanthe) exposed to a magnetic displacement to the west of their natural migration route increased their body mass. The total intensity and inclination used for the western displacement may also have been interpreted as northern compared to the experimental site (stronger total field intensity and steeper inclination angle). In order to investigate whether the fuelling response was a response to an unexpected magnetic field or specific to the northern magnetic field, we conducted a new experiment. Juvenile wheatears from the same study population were magnetically displaced to southwestern magnetic fields, exposing the birds to unexpected magnetic combinations, but... (More)
- In a previous study, we found that juvenile northern wheatears (Oenanthe oenanthe) exposed to a magnetic displacement to the west of their natural migration route increased their body mass. The total intensity and inclination used for the western displacement may also have been interpreted as northern compared to the experimental site (stronger total field intensity and steeper inclination angle). In order to investigate whether the fuelling response was a response to an unexpected magnetic field or specific to the northern magnetic field, we conducted a new experiment. Juvenile wheatears from the same study population were magnetically displaced to southwestern magnetic fields, exposing the birds to unexpected magnetic combinations, but eliminating the possible effect of a northern magnetic field. A control group was kept in the local geomagnetic field in Sweden for comparison. There was no difference in body mass increase between treatments, suggesting that the fuelling response previously found was not a simple response to an unexpected magnetic field, but rather a specific response to the northern magnetic field. Juvenile wheatears may have developed a fuelling response to northern magnetic fields in order to enable a successful flight towards the migration goal. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2570875
- author
- Boström, Jannika LU ; Kullberg, Cecilia and Åkesson, Susanne LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Magnetic field, Fuelling, Migration programs, Northern wheatear
- in
- Behavioral Ecology and Sociobiology
- volume
- 66
- issue
- 5
- pages
- 819 - 821
- publisher
- Springer
- external identifiers
-
- wos:000302815300019
- scopus:84859705346
- ISSN
- 1432-0762
- DOI
- 10.1007/s00265-012-1333-4
- language
- English
- LU publication?
- yes
- id
- 611fdf14-3be2-4bd8-9aef-fee793dc3c82 (old id 2570875)
- date added to LUP
- 2016-04-01 14:01:15
- date last changed
- 2024-05-09 15:49:33
@article{611fdf14-3be2-4bd8-9aef-fee793dc3c82, abstract = {{In a previous study, we found that juvenile northern wheatears (Oenanthe oenanthe) exposed to a magnetic displacement to the west of their natural migration route increased their body mass. The total intensity and inclination used for the western displacement may also have been interpreted as northern compared to the experimental site (stronger total field intensity and steeper inclination angle). In order to investigate whether the fuelling response was a response to an unexpected magnetic field or specific to the northern magnetic field, we conducted a new experiment. Juvenile wheatears from the same study population were magnetically displaced to southwestern magnetic fields, exposing the birds to unexpected magnetic combinations, but eliminating the possible effect of a northern magnetic field. A control group was kept in the local geomagnetic field in Sweden for comparison. There was no difference in body mass increase between treatments, suggesting that the fuelling response previously found was not a simple response to an unexpected magnetic field, but rather a specific response to the northern magnetic field. Juvenile wheatears may have developed a fuelling response to northern magnetic fields in order to enable a successful flight towards the migration goal.}}, author = {{Boström, Jannika and Kullberg, Cecilia and Åkesson, Susanne}}, issn = {{1432-0762}}, keywords = {{Magnetic field; Fuelling; Migration programs; Northern wheatear}}, language = {{eng}}, number = {{5}}, pages = {{819--821}}, publisher = {{Springer}}, series = {{Behavioral Ecology and Sociobiology}}, title = {{Northern magnetic displacements trigger endogenous fuelling responses in a naive bird migrant}}, url = {{http://dx.doi.org/10.1007/s00265-012-1333-4}}, doi = {{10.1007/s00265-012-1333-4}}, volume = {{66}}, year = {{2012}}, }