Are prenatal maternal resources more important in competitive than in benign postnatal environments?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33157440" target="_blank" >RIV/61989592:15310/15:33157440 - isvavai.cz</a>
Result on the web
<a href="http://www.bioone.org/doi/10.1642/AUK-14-236.1" target="_blank" >http://www.bioone.org/doi/10.1642/AUK-14-236.1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1642/AUK-14-236.1" target="_blank" >10.1642/AUK-14-236.1</a>
Alternative languages
Result language
angličtina
Original language name
Are prenatal maternal resources more important in competitive than in benign postnatal environments?
Original language description
According to theoretical models, the optimal solution of the life-history trade-off between the number and size of offspring depends on the quality of the environment. Offspring size should be more important for their fitness in more competitive environments. This idea was rarely experimentally tested in taxa with prolonged periods of parental postnatal care, such as in birds. Here we manipulated the offspring rearing environment by enlarging or reducing brood size. Enlarged broods suffered greater mortality rates and raised smaller fledglings. Egg size had a significant positive effect on fledging mass and length of tarsus and a nonsignificant effect on wing length. These effects were similar in enlarged-sized as well as reduced-sized broods. We onlyfound a tendency for the predicted interaction between treatment and egg size in the case of nestling mass where egg size had a positive effect in enlarged broods but none in reduced broods. In contrast, in one year we found an opposite i
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EG - Zoology
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/GAP506%2F12%2F2472" target="_blank" >GAP506/12/2472: Post-copulatory sexual selection and the biology of sperm: within population processes and interspecific patterns in passerine birds</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Auk: a quarterly journal of ornithology
ISSN
0004-8038
e-ISSN
—
Volume of the periodical
132
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
577-583
UT code for WoS article
000358289000006
EID of the result in the Scopus database
—