Rapid development of brood-parasitic cuckoo embryos cannot be explained by increased gas exchange through the eggshell

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33153412" target="_blank" >RIV/61989592:15310/14:33153412 - isvavai.cz</a>

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1111/jzo.12144/epdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/jzo.12144/epdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jzo.12144" target="_blank" >10.1111/jzo.12144</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rapid development of brood-parasitic cuckoo embryos cannot be explained by increased gas exchange through the eggshell

Popis výsledku v původním jazyce

Obligate avian brood parasites lay their eggs in hosts' nests and play no role in the provisioning of the progeny. Many parasites, including Cuculus cuckoos, hatch before their hosts and the altricial chick evicts hosts eggs and nestlings. A hypothesized, but so far untested parasite adaptation is that the embryos of cuckoos develop more quickly than the hosts' because the higher porosity of the parasite's eggshell allows greater gaseous exchange, potentially supporting more rapid development. We compared the water vapour conductance (GH2O) of common cuckoo (Cuculus canorus) eggshells and those of several passerines, including various cuckoo host species, and non-passerine species. Contrary to the prediction, the cuckoo eggs had lower GH2O than eggs oftheir hosts, and lower GH2O than predicted for their egg size and phylogeny. A potential advantage for the cuckoo egg of having a lower GH2O may be that the yolk is depleted at a slower rate, allowing more reserves to remain at the end o

Název v anglickém jazyce

Rapid development of brood-parasitic cuckoo embryos cannot be explained by increased gas exchange through the eggshell

Popis výsledku anglicky

Obligate avian brood parasites lay their eggs in hosts' nests and play no role in the provisioning of the progeny. Many parasites, including Cuculus cuckoos, hatch before their hosts and the altricial chick evicts hosts eggs and nestlings. A hypothesized, but so far untested parasite adaptation is that the embryos of cuckoos develop more quickly than the hosts' because the higher porosity of the parasite's eggshell allows greater gaseous exchange, potentially supporting more rapid development. We compared the water vapour conductance (GH2O) of common cuckoo (Cuculus canorus) eggshells and those of several passerines, including various cuckoo host species, and non-passerine species. Contrary to the prediction, the cuckoo eggs had lower GH2O than eggs oftheir hosts, and lower GH2O than predicted for their egg size and phylogeny. A potential advantage for the cuckoo egg of having a lower GH2O may be that the yolk is depleted at a slower rate, allowing more reserves to remain at the end o

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Zoology

ISSN

0952-8369

e-ISSN

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Svazek periodika

293

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

219-226

Kód UT WoS článku

000340396500001

EID výsledku v databázi Scopus

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