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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F09%3A00010741%21RIV10-MSM-15310___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Hatchlings of some virulent brood parasitic birds have evolved to eliminate host offspring. We experimentally studied the dynamics and potential costs of the egg eviction behavior of hatchlings of the common cuckoo Cuculus canorus in broods of common redstarts Phoenicurus phoenicurus, a cavity nesting host. Eliminating the labor of egg tossing per se improved the cuckoo chick's growth during the eviction period by similar to 20-30%. Evictor cuckoo chicks recovered from the cost of egg tossing to fledge at similar masses compared with solitary chicks, although they did so at older ages. Foster parents fed evictor chicks less often compared with nonevictors. Feeding frequencies by hosts to evictors correlated negatively with eviction effort as evicting chicks often appeared to ignore fosterers offering food. Nest cup steepness was negatively related to eviction success and positively to age at first eviction. We propose that eviction behavior by cuckoo hatchlings is favored by selection because the Hatchlings of some virulent brood parasitic birds have evolved to eliminate host offspring. We experimentally studied the dynamics and potential costs of the egg eviction behavior of hatchlings of the common cuckoo Cuculus canorus in broods of common redstarts Phoenicurus phoenicurus, a cavity nesting host. Eliminating the labor of egg tossing per se improved the cuckoo chick's growth during the eviction period by similar to 20-30%. Evictor cuckoo chicks recovered from the cost of egg tossing to fledge at similar masses compared with solitary chicks, although they did so at older ages. Foster parents fed evictor chicks less often compared with nonevictors. Feeding frequencies by hosts to evictors correlated negatively with eviction effort as evicting chicks often appeared to ignore fosterers offering food. Nest cup steepness was negatively related to eviction success and positively to age at first eviction. We propose that eviction behavior by cuckoo hatchlings is favored by selection because the
dcterms:title
The cost of virulence: an experimental study of egg eviction by brood parasitic chicks The cost of virulence: an experimental study of egg eviction by brood parasitic chicks
skos:prefLabel
The cost of virulence: an experimental study of egg eviction by brood parasitic chicks The cost of virulence: an experimental study of egg eviction by brood parasitic chicks
skos:notation
RIV/61989592:15310/09:00010741!RIV10-MSM-15310___
n3:aktivita
n5:Z
n3:aktivity
Z(MSM6198959212)
n3:cisloPeriodika
5
n3:dodaniDat
n10:2010
n3:domaciTvurceVysledku
n13:3183831
n3:druhVysledku
n12:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
308437
n3:idVysledku
RIV/61989592:15310/09:00010741
n3:jazykVysledku
n11:eng
n3:klicovaSlova
Cuckoo Cuculus-Canorus; Redstart Phoenicurus-phoenicurus; nestling discrimination; host; behavior; recognition; rejection; young; size
n3:klicoveSlovo
n4:behavior n4:Cuckoo%20Cuculus-Canorus n4:Redstart%20Phoenicurus-phoenicurus n4:recognition n4:size n4:rejection n4:nestling%20discrimination n4:host n4:young
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[1D99227314E9]
n3:nazevZdroje
Behavioral Ecology
n3:obor
n16:EG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n10:2009
n3:svazekPeriodika
20
n3:tvurceVysledku
Cassey, P. Grim, Tomáš Rutila, J. Hauber, M. E
n3:zamer
n6:MSM6198959212
s:issn
1045-2249
s:numberOfPages
9
n15:organizacniJednotka
15310