Male extrapair nestlings fledge first

Schlicht, Lotte; Girg, Alexander; Loës, Peter; Vâlcu, Mihai; Kempenaers, Bart

doi:10.1016/j.anbehav.2012.02.021

Cited by 49 publications

(49 citation statements)

References 32 publications

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“…Boxes are permanently equipped with reading devices installed in the front panels, invisible to the birds. Details and ethical implications are described in Schlicht, Girg, Lo€ es, Valcu, and Kempenaers (2012). Permits were obtained from the Bavarian government and the Bavarian regional office for forestry (LWF).…”

Section: Methodsmentioning

confidence: 99%

Immediate effects of capture on nest visits of breeding blue tits, Cyanistes caeruleus, are substantial

Schlicht

Kempenaers

2015

Animal Behaviour

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Section: Methodsmentioning

confidence: 99%

Immediate effects of capture on nest visits of breeding blue tits, Cyanistes caeruleus, are substantial

Schlicht

Kempenaers

2015

Animal Behaviour

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“…Adults had been tagged during previous breeding attempts ( N = 76 males, 61 females) or after having been caught in a mistnet before the onset of the breeding season ( N = 56 males, 68 females). Nest visits were recorded continuously at all nests with an automated monitoring system (see Schlicht et al, for details). Briefly, all nestboxes were equipped with a transponder reading device, a real‐time clock, two light barriers and a data storage device.…”

Section: Methodsmentioning

confidence: 99%

“…We genotyped 954 offspring (79% of all laid eggs; range: 9%–100% per female) from 126 females (62 predator, 64 non‐predator; three nests were destroyed – probably by a rodent – and were therefore not genotyped). To assess parentage, we compared the genotypes from the social parents and their putative offspring using a set of 11 microsatellite markers (PC3, PC4, PC7, PC8, PC9, Pocc1, Pocc6, MC4, Pat43, PK11 and PK12) following the procedures described in Delhey et al () and Schlicht et al (). Maternity was confirmed in all cases.…”

Section: Methodsmentioning

confidence: 99%

Exposure to predator models during the fertile period leads to higher levels of extra‐pair paternity in blue tits

Santema

Vâlcu

Kempenaers

2019

Journal of Animal Ecology

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The perceived risk of predation can affect breeding behaviour and reduce reproductive success in prey species. Individuals exposed to predators may also adopt different mating tactics with potential consequences for the distribution of paternity in socially monogamous species that engage in extra‐pair copulations. We experimentally increased perceived predation risk during the fertile period in blue tits Cyanistes caeruleus. Every morning between nest completion and the onset of egg laying, we presented a model of either a predator or a non‐predator (control) near active nestboxes. Broods from pairs exposed to predators had higher levels of extra‐pair paternity than control broods. This mainly resulted from a higher proportion of extra‐pair offspring in broods with at least one extra‐pair young. Females exposed to predators first emerged from the nestbox later in the morning, stayed away from the nestbox for longer and were less likely to be visited at the nest by their social mate, but we detected no behavioural differences once the model was removed. Our results suggest that the higher rates of extra‐pair paternity resulted from the disruption of morning routines, which may have inhibited within‐pair copulations or increased opportunities for females to engage in extra‐pair copulations. We conclude that the perceived risk of predation can have substantial effects on levels of extra‐pair paternity.

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“…, Schlicht et al . ). We predicted that there is selection for leaving early and therefore a negative correlation between first‐year survival and time of day of fledging. Fledging order .…”

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confidence: 97%

“…Fledging asynchrony is often smaller than hatching asynchrony (Freed , Schlicht et al . , Bowers et al . ).…”

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confidence: 99%

Early morning fledging improves recruitment in Great Tits Parus major

Radersma

Komdeur

Tinbergen

2014

Ibis

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A potential key event linking the nestling phase to first‐year survival is fledging (nest leaving) because this process is characterized by a major change of environments and therefore a sudden shift in selective forces. Here we assessed whether different facets of fledging predicted subsequent survival (measured as local recruitment) in Great Tits Parus major. Nestlings had a higher recruitment probability when they fledged early in the morning and when they were heavy. The existence of selection for fledging early in the day has been suggested before, but here we provide the first empirical evidence in support of that prediction.

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Male extrapair nestlings fledge first

Cited by 49 publications

References 32 publications

Immediate effects of capture on nest visits of breeding blue tits, Cyanistes caeruleus, are substantial

Immediate effects of capture on nest visits of breeding blue tits, Cyanistes caeruleus, are substantial

Exposure to predator models during the fertile period leads to higher levels of extra‐pair paternity in blue tits

Early morning fledging improves recruitment in Great Tits Parus major

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