Reference : Non-photoperiodic factors and timing of breeding in blue tits: Impact of environmental a...
Scientific journals : Article
Life sciences : Zoology
Social & behavioral sciences, psychology : Neurosciences & behavior
Social & behavioral sciences, psychology : Animal psychology, ethology & psychobiology
http://hdl.handle.net/2268/11029
Non-photoperiodic factors and timing of breeding in blue tits: Impact of environmental and social influences in semi-natural conditions
English
Caro, S. P. [> > > >]
Lambrechts, M. M. [> > > >]
Balthazart, Jacques mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau >]
Perret, P. [> > > >]
May-2007
Behavioural Processes
Elsevier Science Bv
75
1
1-7
Yes (verified by ORBi)
International
0376-6357
Amsterdam
[en] avian reproduction ; bird ; captive animals ; environmental factors ; Cyanistes caeruleus ; seasonal breeding
[en] The seasonal development of life-history traits is influenced by many environmental factors. The impact of photoperiodic and non-photoperiodic factors on nest building and egg laying has been rarely investigated in non-domesticated avian species for which long term field data sets are available. Former investigations showed that blue tits originating from geographically close populations in the Mediterranean region do not respond in the same way to photoperiodic factors in semi-natural outdoor conditions. Here we show experimentally that nest building and onset of egg laying in captive blue tits is also proximately influenced by non-photoperiodic factors, including aspects related to aviary characteristics and social interactions between birds of the two sexes originating from different local Mediterranean study populations. In two successive experiments, we show that (1) increasing the volume of the aviary advanced the egg laying period of one specific population by almost I month, and (2) crossing pairs of birds from different origins strongly reduced the nest building and egg laying behaviours. These results indicate that obtaining biologically relevant breeding results in captivity with wild birds requires the control and experimental manipulation of a wide array of complex environmental cues. (c) 2007 Elsevier B.V All rights reserved.
http://hdl.handle.net/2268/11029
10.1016/j.beproc.2007.02.011

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