Eggshell strength of an obligate brood parasite: a test of the puncture resistance hypothesis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F06%3A00043860" target="_blank" >RIV/68081766:_____/06:00043860 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Eggshell strength of an obligate brood parasite: a test of the puncture resistance hypothesis

Original language description

The present study evaluated the puncture resistance hypothesis for the occurrence of thick-shelled eggs in common cuckoos Cuculus canorus by investigating costs of cuckoo egg ejection in four Acrocephalus warblers?the great reed warbler A. arundinaceus,reed warbler A. scirpaceus, marsh warbler A. palustris and sedge warbler A. schoenobaenus. The three latter species all suffered ejection costs, while ejection was not costly in the larger great reed warbler. The occurrence of ejection costs was negatively related to host bill size. In the marsh warbler, we compared ejection costs in naturally parasitized nests and two experimental treatments, in which broods were parasitized artificially with great reed warbler and conspecific eggs. Hosts damaged theirown eggs significantly more often when ejecting the thick-shelled cuckoo eggs than when ejecting the similarly sized but thinner-shelled great reed warbler eggs, providing some support for the puncture resistance hypothesis. Ejection of

Czech name

Síla skořápky u obligátního hnízdního parasita: test ?puncture resistance hypothesis?

Czech description

Vejce hnízdních parasitů mají pevnější a silnější skořápku než lze očekávat vzhledem k jejich velikosti. U několika druhů rákosníků byla testována ?puncture resistance hypothesis?. Pouze u rákosníka velkého nebyly zaznamenány náklady spojené s odstraněním parasitického vejce. Náklady s odstraněním byly negativně korelovány s velikostí zobáku. Závěry podpořily ?puncture resistence hypothesis?.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

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

Name of the periodical

Behavioral Ecology and Sociobiology

ISSN

0340-5443

e-ISSN

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Volume of the periodical

60

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

11-18

UT code for WoS article

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EID of the result in the Scopus database

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