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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F11%3A33119838%21RIV12-MSM-15310___
rdf:type
skos:Concept n7:Vysledek
dcterms:description
Parents affect offspring fitness by propagule size and quality, selection of oviposition site, quality of incubation, feeding of dependent young, and their defence against predators and parasites. Despite many case studies on each of these topics, this knowledge has not been rigorously integrated into individual parental care traits for any taxon. Consequently, we lack a comprehensive, quantitative assessment of how parental care modifies offspring phenotypes. This meta-analysis of 283 studies with 1805 correlations between egg size and offspring quality in birds is intended to fill this gap. The large sample size enabled testing of how the magnitude of the relationship between egg size and offspring quality depends on a number of variables. Egg size was positively related to nearly all studied offspring traits across all stages of the offspring life cycle. Not surprisingly, the relationship was strongest at hatching but persisted until the post-fledging stage. Morphological traits were the most closely related to egg size but significant relationships were also found with hatching success, chick survival, and growth rate. Non-significant effect sizes were found for egg fertility, chick immunity, behaviour, and life-history or sexual traits. Effect size did not depend on whether chicks were raised by their natural parents or were cross-fostered to other territories. Effect size did not depend on species-specific traits such as developmental mode, clutch size, and relative size of the egg, but was larger if tested in captive compared to wild populations and between rather than within broods. In sum, published studies support the view that egg size affects juvenile survival. There are very few studies that tested the relationship between egg size and the fecundity component of offspring fitness, and no studies on offspring survival as adults or on global fitness. Parents affect offspring fitness by propagule size and quality, selection of oviposition site, quality of incubation, feeding of dependent young, and their defence against predators and parasites. Despite many case studies on each of these topics, this knowledge has not been rigorously integrated into individual parental care traits for any taxon. Consequently, we lack a comprehensive, quantitative assessment of how parental care modifies offspring phenotypes. This meta-analysis of 283 studies with 1805 correlations between egg size and offspring quality in birds is intended to fill this gap. The large sample size enabled testing of how the magnitude of the relationship between egg size and offspring quality depends on a number of variables. Egg size was positively related to nearly all studied offspring traits across all stages of the offspring life cycle. Not surprisingly, the relationship was strongest at hatching but persisted until the post-fledging stage. Morphological traits were the most closely related to egg size but significant relationships were also found with hatching success, chick survival, and growth rate. Non-significant effect sizes were found for egg fertility, chick immunity, behaviour, and life-history or sexual traits. Effect size did not depend on whether chicks were raised by their natural parents or were cross-fostered to other territories. Effect size did not depend on species-specific traits such as developmental mode, clutch size, and relative size of the egg, but was larger if tested in captive compared to wild populations and between rather than within broods. In sum, published studies support the view that egg size affects juvenile survival. There are very few studies that tested the relationship between egg size and the fecundity component of offspring fitness, and no studies on offspring survival as adults or on global fitness.
dcterms:title
Egg size and offspring quality: a meta-analysis in birds Egg size and offspring quality: a meta-analysis in birds
skos:prefLabel
Egg size and offspring quality: a meta-analysis in birds Egg size and offspring quality: a meta-analysis in birds
skos:notation
RIV/61989592:15310/11:33119838!RIV12-MSM-15310___
n7:predkladatel
n8:orjk%3A15310
n3:aktivita
n18:Z
n3:aktivity
Z(MSM6198959212)
n3:cisloPeriodika
3
n3:dodaniDat
n4:2012
n3:domaciTvurceVysledku
n5:5928184
n3:druhVysledku
n10:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
196778
n3:idVysledku
RIV/61989592:15310/11:33119838
n3:jazykVysledku
n14:eng
n3:klicovaSlova
yolk steroids; offspring fitness; maternal effect; juvenile survival; intraclutch; feeding frequency; egg size; environmental quality; birth mass; altricial
n3:klicoveSlovo
n9:environmental%20quality n9:maternal%20effect n9:altricial n9:yolk%20steroids n9:offspring%20fitness n9:feeding%20frequency n9:juvenile%20survival n9:birth%20mass n9:egg%20size n9:intraclutch
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[7A8EC7ED2E42]
n3:nazevZdroje
Biological Reviews
n3:obor
n17:EG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n4:2011
n3:svazekPeriodika
86
n3:tvurceVysledku
Krist, Miloš
n3:wos
000292845500008
n3:zamer
n12:MSM6198959212
s:issn
1464-7931
s:numberOfPages
25
n13:doi
10.1111/j.1469-185X.2010.00166.x
n19:organizacniJednotka
15310