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Statements

Subject Item
n2:RIV%2F68081766%3A_____%2F14%3A00427436%21RIV15-GA0-68081766
rdf:type
n9:Vysledek skos:Concept
rdfs:seeAlso
http://www.ornisfennica.org/pdf/early/4Grim.pdf
dcterms:description
Avian brood parasites exploit hosts that have accessible nests and a soft insect diet. Common Cuckoo (Cucuclus canorus) hosts were traditionally classified as suitable if both parameters were fulfilled or unsuitable if one, or both, were not. In line with this view, holenesting tits (Paridae) have become a text-book example of unsuitable Cuckoo hosts. Our extensive literature search for Cuckoo eggs hatched and chicks raised by hosts revealed 16 Cuckoo nestlings in Great Tit (Parus major) nests, 2 nestlings and 2 fledglings in Blue Tits (Cyanistes caerulens), and 1 nestling in a Crested Tit (Lophophanes cristatus) nest. Our own data from natural observations and cross-fostering experiments concur with literature data that Great Tits are able to rear Cuckoo chicks to fledging. The natural observations involve the first known cases where a bird species became parasitized as a byproduct of nest usurpation (take-over). Surprisingly, Cuckoo chicks raised by Great Tits grew better than Cuckoo chicks raised by common hosts, even alongside host own chicks. The frequency of Cuckoo parasitism in tits may be underestimated by studying tits in artificial nest-boxes with small entrances that prevent Cuckoos from laying and/or fledging. Results support a view that host suitability is not a categorical parameter (host suitable or unsuitable) but a continuous phenomenon. Understanding the diversity of parameters that determine host selection by Cuckoos is limited, because studies on Cuckoo chick diet, growth, and survival in most hosts are rare. Therefore any data are valuable and provide indispensable material for future meta-analyses. Avian brood parasites exploit hosts that have accessible nests and a soft insect diet. Common Cuckoo (Cucuclus canorus) hosts were traditionally classified as suitable if both parameters were fulfilled or unsuitable if one, or both, were not. In line with this view, holenesting tits (Paridae) have become a text-book example of unsuitable Cuckoo hosts. Our extensive literature search for Cuckoo eggs hatched and chicks raised by hosts revealed 16 Cuckoo nestlings in Great Tit (Parus major) nests, 2 nestlings and 2 fledglings in Blue Tits (Cyanistes caerulens), and 1 nestling in a Crested Tit (Lophophanes cristatus) nest. Our own data from natural observations and cross-fostering experiments concur with literature data that Great Tits are able to rear Cuckoo chicks to fledging. The natural observations involve the first known cases where a bird species became parasitized as a byproduct of nest usurpation (take-over). Surprisingly, Cuckoo chicks raised by Great Tits grew better than Cuckoo chicks raised by common hosts, even alongside host own chicks. The frequency of Cuckoo parasitism in tits may be underestimated by studying tits in artificial nest-boxes with small entrances that prevent Cuckoos from laying and/or fledging. Results support a view that host suitability is not a categorical parameter (host suitable or unsuitable) but a continuous phenomenon. Understanding the diversity of parameters that determine host selection by Cuckoos is limited, because studies on Cuckoo chick diet, growth, and survival in most hosts are rare. Therefore any data are valuable and provide indispensable material for future meta-analyses.
dcterms:title
Are tits really unsuitable hosts for the Common Cuckoo? Are tits really unsuitable hosts for the Common Cuckoo?
skos:prefLabel
Are tits really unsuitable hosts for the Common Cuckoo? Are tits really unsuitable hosts for the Common Cuckoo?
skos:notation
RIV/68081766:_____/14:00427436!RIV15-GA0-68081766
n3:aktivita
n5:P n5:I
n3:aktivity
I, P(GAP506/12/2404)
n3:cisloPeriodika
3
n3:dodaniDat
n4:2015
n3:domaciTvurceVysledku
n18:5934583
n3:druhVysledku
n6:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
4078
n3:idVysledku
RIV/68081766:_____/14:00427436
n3:jazykVysledku
n8:eng
n3:klicovaSlova
Cuculus canorus chicks; hole nesting birds; reed warbler hosts; parasitic birds; brood parasite; parental care; egg eviction; great; virulence; discrimination
n3:klicoveSlovo
n7:discrimination n7:parasitic%20birds n7:great n7:reed%20warbler%20hosts n7:egg%20eviction n7:virulence n7:brood%20parasite n7:hole%20nesting%20birds n7:Cuculus%20canorus%20chicks n7:parental%20care
n3:kodStatuVydavatele
FI - Finská republika
n3:kontrolniKodProRIV
[A144E56D1C7D]
n3:nazevZdroje
Ornis Fennica
n3:obor
n13:EG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n10:GAP506%2F12%2F2404
n3:rokUplatneniVysledku
n4:2014
n3:svazekPeriodika
91
n3:tvurceVysledku
Procházka, Petr Samaš, P. Rutila, J. Grim, T.
n3:wos
000344436900004
s:issn
0030-5685
s:numberOfPages
12