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Statements

Subject Item
n2:RIV%2F61989592%3A15410%2F12%3A33138425%21RIV13-MSM-15410___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Parent birds make efforts to prevent the immediate costs of predation through plastic behavioural responses to the actual predation risk, but this may incur future costs for offspring due to reduced parental care. However, the temporary nature of predator encounters suggests that nestling feeding reduced during the risky periods may be later compensated for by an increased feeding effort (the predation risk allocation hypothesis). We tested this prediction in the Great Spotted Woodpecker (Dendrocopos major) confronted with its major nest predator/competitor, the European Starling (Sturnus vulgaris). A brief encounter with a live starling was followed by a reduction in the nestling feeding rate, but the lost feedings were subsequently compensated for by an increased feeding rate. This compensatory effect was higher in older nestlings that are highly demanding in terms of energy requirements and fitness value from the parents'perspective. Thus, birds are potentially able to respond not only to the immediate risk of nest predation by nest defence but also to compensate for the potential costs of nest defence in terms of unfulfilled nestling demands. However, data on the amount of delivered food are necessary to distinguish whether parents truly compensate for lost feeding or whether the increased feeding frequency represents a nest guarding strategy. Parent birds make efforts to prevent the immediate costs of predation through plastic behavioural responses to the actual predation risk, but this may incur future costs for offspring due to reduced parental care. However, the temporary nature of predator encounters suggests that nestling feeding reduced during the risky periods may be later compensated for by an increased feeding effort (the predation risk allocation hypothesis). We tested this prediction in the Great Spotted Woodpecker (Dendrocopos major) confronted with its major nest predator/competitor, the European Starling (Sturnus vulgaris). A brief encounter with a live starling was followed by a reduction in the nestling feeding rate, but the lost feedings were subsequently compensated for by an increased feeding rate. This compensatory effect was higher in older nestlings that are highly demanding in terms of energy requirements and fitness value from the parents'perspective. Thus, birds are potentially able to respond not only to the immediate risk of nest predation by nest defence but also to compensate for the potential costs of nest defence in terms of unfulfilled nestling demands. However, data on the amount of delivered food are necessary to distinguish whether parents truly compensate for lost feeding or whether the increased feeding frequency represents a nest guarding strategy.
dcterms:title
Compensation for predator-induced reduction in nestling feeding rate in the Great Spotted Woodpecker Compensation for predator-induced reduction in nestling feeding rate in the Great Spotted Woodpecker
skos:prefLabel
Compensation for predator-induced reduction in nestling feeding rate in the Great Spotted Woodpecker Compensation for predator-induced reduction in nestling feeding rate in the Great Spotted Woodpecker
skos:notation
RIV/61989592:15410/12:33138425!RIV13-MSM-15410___
n15:predkladatel
n16:orjk%3A15410
n3:aktivita
n10:V n10:Z n10:S
n3:aktivity
S, V, Z(MSM6198959212)
n3:cisloPeriodika
leden
n3:dodaniDat
n4:2013
n3:domaciTvurceVysledku
n18:3328082
n3:druhVysledku
n14:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
128122
n3:idVysledku
RIV/61989592:15410/12:33138425
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Parental care, Predation risk allocation hypothesis, Nest defence, Nestling feeding, Compensation, European Starling, Great Spotted Woodpecker
n3:klicoveSlovo
n6:Compensation n6:European%20Starling n6:Parental%20care n6:Nest%20defence n6:Great%20Spotted%20Woodpecker n6:Predation%20risk%20allocation%20hypothesis n6:Nestling%20feeding
n3:kodStatuVydavatele
JP - Japonsko
n3:kontrolniKodProRIV
[8B8C64A9268B]
n3:nazevZdroje
Journal of Ethology
n3:obor
n13:EG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n4:2012
n3:svazekPeriodika
30
n3:tvurceVysledku
Weidinger, Karel Misík, Jan Paclík, Martin
n3:zamer
n11:MSM6198959212
s:issn
0289-0771
s:numberOfPages
6
n5:doi
10.1007/s10164-011-0311-z
n19:organizacniJednotka
15410