UV a zelené části spektra ovlivňují rozpoznávání vajec u drozda zpěvného (Turdus philomelos)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F07%3A00085793" target="_blank" >RIV/68081766:_____/07:00085793 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Ultraviolet and green parts of the colour spectrum affect egg rejection in the song thrush (Turdus philomelos)

Popis výsledku v původním jazyce

We investigated effect of different colors of the experimental eggs measured by UV?visible reflectance spectrophotometry on rejection behavior in the song thrush. We carried out a set of experiments with four blue model eggs representing mimetic eggs, whereas six other colours represented nonmimetic eggs. Our results revealed that two colors originally designed as a mimetic were rejected at a high rate, whereas one group of the nonmimetic was accepted. A multiple regression model of absolute differencesbetween song thrush and experimental eggs on rejection rate showed that the level of mimicry in the UV and green parts of the color spectrum significantly influenced egg rejection. To our knowledge, this is the first detailed study showing that different color perception by the birds can affect their responses towards the parasitic egg. These findings suggest that the combination of UV and visible ranges of the spectra plays a major role in the evolution of discrimination processes.

Název v anglickém jazyce

Ultraviolet and green parts of the colour spectrum affect egg rejection in the song thrush (Turdus philomelos)

Popis výsledku anglicky

We investigated effect of different colors of the experimental eggs measured by UV?visible reflectance spectrophotometry on rejection behavior in the song thrush. We carried out a set of experiments with four blue model eggs representing mimetic eggs, whereas six other colours represented nonmimetic eggs. Our results revealed that two colors originally designed as a mimetic were rejected at a high rate, whereas one group of the nonmimetic was accepted. A multiple regression model of absolute differencesbetween song thrush and experimental eggs on rejection rate showed that the level of mimicry in the UV and green parts of the color spectrum significantly influenced egg rejection. To our knowledge, this is the first detailed study showing that different color perception by the birds can affect their responses towards the parasitic egg. These findings suggest that the combination of UV and visible ranges of the spectra plays a major role in the evolution of discrimination processes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Biological Journal of the Linnean Society

ISSN

0024-4066

e-ISSN

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Svazek periodika

92

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

269-276

Kód UT WoS článku

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EID výsledku v databázi Scopus

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