About: The role of blunt egg pole characteristics for recognition of eggs in the song thrush (Turdus philomelos)     Goto   Sponge   NotDistinct   Permalink

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  • Colour and speckling of avian eggshells play important roles in egg recognition behaviour. However, only a few studies have paid attention to whether specific parts of eggs may be more important than others in rejection decisions by hosts. We hypothesised that the blunt pole in song thrush eggs possesses important cues for recognition of own eggs because this is the most visible part of the egg in the nest. We examined host response towards conspecific eggs painted blue either at the blunt or sharp poles, and used unpainted conspecific eggs as a control. We found, as predicted, that the experimental eggs painted blue at the blunt poles were rejected significantly more often than the experimental eggs unpainted at this pole. Rejection rates of experimental eggs were higher with increasing differences in number of spots between the two poles of own eggs. Our results confirmed that the essential cues used for egg discrimination in song thrushes are found at the blunt egg pole.
  • Colour and speckling of avian eggshells play important roles in egg recognition behaviour. However, only a few studies have paid attention to whether specific parts of eggs may be more important than others in rejection decisions by hosts. We hypothesised that the blunt pole in song thrush eggs possesses important cues for recognition of own eggs because this is the most visible part of the egg in the nest. We examined host response towards conspecific eggs painted blue either at the blunt or sharp poles, and used unpainted conspecific eggs as a control. We found, as predicted, that the experimental eggs painted blue at the blunt poles were rejected significantly more often than the experimental eggs unpainted at this pole. Rejection rates of experimental eggs were higher with increasing differences in number of spots between the two poles of own eggs. Our results confirmed that the essential cues used for egg discrimination in song thrushes are found at the blunt egg pole. (en)
Title
  • The role of blunt egg pole characteristics for recognition of eggs in the song thrush (Turdus philomelos)
  • The role of blunt egg pole characteristics for recognition of eggs in the song thrush (Turdus philomelos) (en)
skos:prefLabel
  • The role of blunt egg pole characteristics for recognition of eggs in the song thrush (Turdus philomelos)
  • The role of blunt egg pole characteristics for recognition of eggs in the song thrush (Turdus philomelos) (en)
skos:notation
  • RIV/68081766:_____/10:00340433!RIV11-GA0-68081766
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GD524/05/H536), P(LC06073), Z(AV0Z60930519)
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 285681
http://linked.open...ai/riv/idVysledku
  • RIV/68081766:_____/10:00340433
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • brood parasitism; egg discrimination; eggshell characteristics; recognition cues; rejection behaviour (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [4939FC12FD73]
http://linked.open...i/riv/nazevZdroje
  • Behaviour
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 147
http://linked.open...iv/tvurceVysledku
  • Honza, Marcel
  • Moksnes, A.
  • Polačiková, Lenka
  • Procházka, Petr
  • Roskaft, E.
  • Stokke, B. G.
http://linked.open...ain/vavai/riv/wos
  • 000277127600003
http://linked.open...n/vavai/riv/zamer
issn
  • 0005-7959
number of pages
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