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Night-time neuronal activation of Cluster N in a day- and night-migrating songbird

Zapka, Manuela; Heyers, Dominik; Liedvogel, Miriam LU ; Jarvis, Erich D. and Mouritsen, Henrik (2010) In European Journal of Neuroscience 32(4). p.619-624
Abstract
Magnetic compass orientation in a night-migratory songbird requires that Cluster N, a cluster of forebrain regions, is functional. Cluster N, which receives input from the eyes via the thalamofugal pathway, shows high neuronal activity in night-migrants performing magnetic compass-guided behaviour at night, whereas no activation is observed during the day, and covering up the birds' eyes strongly reduces neuronal activation. These findings suggest that Cluster N processes light-dependent magnetic compass information in night-migrating songbirds. The aim of this study was to test if Cluster N is active during daytime migration. We used behavioural molecular mapping based on ZENK activation to investigate if Cluster N is active in the meadow... (More)
Magnetic compass orientation in a night-migratory songbird requires that Cluster N, a cluster of forebrain regions, is functional. Cluster N, which receives input from the eyes via the thalamofugal pathway, shows high neuronal activity in night-migrants performing magnetic compass-guided behaviour at night, whereas no activation is observed during the day, and covering up the birds' eyes strongly reduces neuronal activation. These findings suggest that Cluster N processes light-dependent magnetic compass information in night-migrating songbirds. The aim of this study was to test if Cluster N is active during daytime migration. We used behavioural molecular mapping based on ZENK activation to investigate if Cluster N is active in the meadow pipit (Anthus pratensis), a day- and night-migratory species. We found that Cluster N of meadow pipits shows high neuronal activity under dim-light at night, but not under full room-light conditions during the day. These data suggest that, in day- and night-migratory meadow pipits, the light-dependent magnetic compass, which requires an active Cluster N, may only be used during night-time, whereas another magnetosensory mechanism and/or other reference system(s), like the sun or polarized light, may be used as primary orientation cues during the day. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
navigation, meadow pipit, magnetoperception, bird migration, magnetic sense
in
European Journal of Neuroscience
volume
32
issue
4
pages
619 - 624
publisher
Wiley-Blackwell
external identifiers
  • wos:000280996500011
  • scopus:77955730342
ISSN
1460-9568
DOI
10.1111/j.1460-9568.2010.07311.x
language
English
LU publication?
yes
id
e1bea1fb-3a03-4c70-882a-09d4f70d96b5 (old id 1673841)
date added to LUP
2010-09-22 15:52:16
date last changed
2018-06-17 03:08:27
@article{e1bea1fb-3a03-4c70-882a-09d4f70d96b5,
  abstract     = {Magnetic compass orientation in a night-migratory songbird requires that Cluster N, a cluster of forebrain regions, is functional. Cluster N, which receives input from the eyes via the thalamofugal pathway, shows high neuronal activity in night-migrants performing magnetic compass-guided behaviour at night, whereas no activation is observed during the day, and covering up the birds' eyes strongly reduces neuronal activation. These findings suggest that Cluster N processes light-dependent magnetic compass information in night-migrating songbirds. The aim of this study was to test if Cluster N is active during daytime migration. We used behavioural molecular mapping based on ZENK activation to investigate if Cluster N is active in the meadow pipit (Anthus pratensis), a day- and night-migratory species. We found that Cluster N of meadow pipits shows high neuronal activity under dim-light at night, but not under full room-light conditions during the day. These data suggest that, in day- and night-migratory meadow pipits, the light-dependent magnetic compass, which requires an active Cluster N, may only be used during night-time, whereas another magnetosensory mechanism and/or other reference system(s), like the sun or polarized light, may be used as primary orientation cues during the day.},
  author       = {Zapka, Manuela and Heyers, Dominik and Liedvogel, Miriam and Jarvis, Erich D. and Mouritsen, Henrik},
  issn         = {1460-9568},
  keyword      = {navigation,meadow pipit,magnetoperception,bird migration,magnetic sense},
  language     = {eng},
  number       = {4},
  pages        = {619--624},
  publisher    = {Wiley-Blackwell},
  series       = {European Journal of Neuroscience},
  title        = {Night-time neuronal activation of Cluster N in a day- and night-migrating songbird},
  url          = {http://dx.doi.org/10.1111/j.1460-9568.2010.07311.x},
  volume       = {32},
  year         = {2010},
}