A shared chemical basis of avian host-parasite egg colour mimicry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33142575" target="_blank" >RIV/61989592:15310/12:33142575 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1098/rspb.2011.1718" target="_blank" >http://dx.doi.org/10.1098/rspb.2011.1718</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1098/rspb.2011.1718" target="_blank" >10.1098/rspb.2011.1718</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A shared chemical basis of avian host-parasite egg colour mimicry

Popis výsledku v původním jazyce

Avian brood parasites lay their eggs in other birds' nests and impose considerable ?tness costs on their hosts. Historically and scienti?cally, the best studied example of circumventing host defences is the mimicry of host eggshell colour by the common cuckoo (Cuculus canorus). Yet the chemical basis of eggshell colour similarity, which impacts hosts' tolerance towards parasitic eggs, remains unknown. We tested the alternative scenarios that (i) cuckoos replicate host egg pigment chemistry, or (ii) cuckoos use alternative mechanisms to produce a similar perceptual effect to mimic host egg appearance. In parallel with patterns of similarity in avian-perceived colour mimicry, the concentrations of the two key eggshell pigments, biliverdin and protoporphyrin, were most similar between the cuckoo host-races and their respective hosts. Thus, the chemical basis of avian host-parasite egg colour mimicry is evolutionarily conserved, but also intraspeci?cally ?exible. These analyses of pigment

Název v anglickém jazyce

A shared chemical basis of avian host-parasite egg colour mimicry

Popis výsledku anglicky

Avian brood parasites lay their eggs in other birds' nests and impose considerable ?tness costs on their hosts. Historically and scienti?cally, the best studied example of circumventing host defences is the mimicry of host eggshell colour by the common cuckoo (Cuculus canorus). Yet the chemical basis of eggshell colour similarity, which impacts hosts' tolerance towards parasitic eggs, remains unknown. We tested the alternative scenarios that (i) cuckoos replicate host egg pigment chemistry, or (ii) cuckoos use alternative mechanisms to produce a similar perceptual effect to mimic host egg appearance. In parallel with patterns of similarity in avian-perceived colour mimicry, the concentrations of the two key eggshell pigments, biliverdin and protoporphyrin, were most similar between the cuckoo host-races and their respective hosts. Thus, the chemical basis of avian host-parasite egg colour mimicry is evolutionarily conserved, but also intraspeci?cally ?exible. These analyses of pigment

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Proceedings of The Royal Society of London. Biological Sciences

ISSN

0962-8452

e-ISSN

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Svazek periodika

279

Číslo periodika v rámci svazku

1731

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

"1068?1076"

Kód UT WoS článku

000300417000004

EID výsledku v databázi Scopus

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