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001-es BibID:BIBFORM062203
Első szerző:Geltsch Nikoletta
Cím:When should Common Cuckoos Cuculus canorus lay their eggs in host nests? / Nikoletta Geltsch, Miklós Bán, Mark E. Hauber, Csaba Moskát
Dátum:2016
ISSN:0006-3657
Megjegyzések:Capsule Brood parasitic Common Cuckoo Cuculus canorus chicks hatch erlier than the nestlingsof their Great Reed Warbler Acrocephalus arundinaceus hosts, but hatching priority is less consistent whwn Cuckoo eggs are laid after the onset of host incubation.Aim To reveal by field observations what the optimal stage is for Cuckoos to lay their eggs in relation to the host laying cycle to ensure prior hatching of the parasitic chicks.Methods We monitored the hatching of Cuckoo chicks in relation to the hosts' laying stage at which the cuckoo eggs appeared and also monitored host incubation behaviour.Results GreatReed Warblers incubated more on day 5 after the host's onset of laying relative to day 3. All Cuckoo eggs hatched earlier htan hosts when they were laid prior to the onset of host incubation (day 4). Cuckoo eggs also maintained hatching priority in about 2/3 of the nests when laid on days 5-6.Conclusions Most Cuckoo eggs are laid prior to the onset of host incubation and this, together with other adaptive mechanisms, ensures the prior hatching of Cuckoo eggs. Cuckoo eggs laid after the onset of incubation lose the advantage of prior hatching in approximately 30% of nests.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Élettudományok - Biológiai tudományok
Megjelenés:Bird Study 63 : 1 (2016), p. 46-51. -
További szerzők:Bán Miklós (1975-) (biológus) Hauber, Mark E. Moskát Csaba
Pályázati támogatás:MTA-DE Lendület
MTA
Viselkedésökológiai Kutatócsoport
Internet cím:DOI
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