About: Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females     Goto   Sponge   NotDistinct   Permalink

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  • Females of the obligate brood parasitic common cuckoo Cuculus canorus are assumed to lay eggs of consistent colour and pattern and egg characteristics have been used to separate between different individuals. We tested the %22constant egg-type hypothesis%22 in blind tests using test persons who grouped cuckoo eggs into %22potential clutches%22 based on similarity in appearance. A correct classification of eggs laid by known (radiotagged) females supported the hypothesis. However, comparisons between maternity based on visual assessments and DNA-based parentage analyses revealed rather poor concordance between the two methods. Our findings indicate that egg characteristics cannot be used to separate between cuckoo females, even if they lay eggs with constant appearance. The reason is probably that there are only small or negligible variations in egg appearance between some females like mothers and daughters or other closely related individuals.
  • Females of the obligate brood parasitic common cuckoo Cuculus canorus are assumed to lay eggs of consistent colour and pattern and egg characteristics have been used to separate between different individuals. We tested the %22constant egg-type hypothesis%22 in blind tests using test persons who grouped cuckoo eggs into %22potential clutches%22 based on similarity in appearance. A correct classification of eggs laid by known (radiotagged) females supported the hypothesis. However, comparisons between maternity based on visual assessments and DNA-based parentage analyses revealed rather poor concordance between the two methods. Our findings indicate that egg characteristics cannot be used to separate between cuckoo females, even if they lay eggs with constant appearance. The reason is probably that there are only small or negligible variations in egg appearance between some females like mothers and daughters or other closely related individuals. (en)
  • Samice obligátních hnízdních parasitů kladou vejce konsistentní v barvě a skvrnění a tyto charakteristiky jsou využívány k odlišení jednotlivých individuií. Byla testována %22constant egg-type hypothesis%22 pomocí hodnocení fotografií, které byly přiřazovány k jednotlivým samicím. Tento výsledek byl konfrontován s radiotelemetricky označenými samicemi a s analýzami DNA rodičů. Bylo prokázáno, že charateristiky vejce nemohou být použity k odlišení jednotlivých samic, i když snášejí vejce konstantního typu. (cs)
Title
  • Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females
  • Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females (en)
  • Samice kukaček kladou vejce konstantního typu, ale ten nemůže být použit k přiřazování k jednotlivým samicím (cs)
skos:prefLabel
  • Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females
  • Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females (en)
  • Samice kukaček kladou vejce konstantního typu, ale ten nemůže být použit k přiřazování k jednotlivým samicím (cs)
skos:notation
  • RIV/68081766:_____/08:00309451!RIV09-AV0-68081766
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z60930519)
http://linked.open...iv/cisloPeriodika
  • 2
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
  • 371908
http://linked.open...ai/riv/idVysledku
  • RIV/68081766:_____/08:00309451
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • host preference; co-evolution; parasitism (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DK - Dánské království
http://linked.open...ontrolniKodProRIV
  • [B4E84F7355C6]
http://linked.open...i/riv/nazevZdroje
  • Journal of avian biology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 39
http://linked.open...iv/tvurceVysledku
  • Honza, Marcel
  • Moksnes, A.
  • Roskaft, E.
  • Stokke, B. G.
  • Kleven, O.
  • Gibbs, H. L.
  • Rudolfsen, G.
  • Skjelseth, S.
  • Taborsky, B.
  • Taborsky, M.
  • Teuschl, Y.
  • Vogl, W.
http://linked.open...ain/vavai/riv/wos
  • 000253759300018
http://linked.open...n/vavai/riv/zamer
issn
  • 0908-8857
number of pages
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