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Bill size correlates with telomere length in male American Redstarts

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Bill size correlates with telomere length in male American Redstarts

Content Provider	Springer Nature Link
Author	Angelier, Frédéric Vleck, Carol M. Holberton, Rebecca L. Marra, Peter P.
Copyright Year	2015
Abstract	Telomere length (TL) has been shown to be a potential predictor of survival in wild vertebrates, and, as a consequence, there is growing interest in understanding the causes of inter-individual variability in TL. In that context, developmental conditions deserve a specific attention because they are thought to be a major driver of telomere shortening. Because poor developmental conditions can accelerate telomere shortening and impair growth (resulting in a small adult size), a positive correlation between TL and body size is expected. However, and surprisingly, the relationship between body size and telomere length has rarely been described in wild vertebrates. Here, we specifically examined this question in hatch-year (HY) and after hatch-year (AHY) male wintering American Redstarts (Setophaga ruticilla). Although tarsus size was not related to TL, we found a significant positive correlation between bill size and TL in HY male Redstarts, therefore supporting the idea that determinants of some components of individual size are also important determinants of TL in young birds. Moreover, this positive relationship between bill size and TL was also found for AHY birds, suggesting that adult TL may be, at least partly, explained by the telomere dynamics that occurred during the developmental phase. Die Schnabelgröße korreliert bei männlichen Schnäpperwaldsängern mit der Telomerlänge Es ist gezeigt worden, das die Telomerlänge (TL) ein potenzieller Anzeiger des Überlebens freilebender Wirbeltiere ist, weshalb zunehmendes Interesse besteht, die Ursachen für die individuelle Variabilität der TL zu verstehen. In diesem Zusammenhang gebührt den Bedingungen während der Entwicklung besondere Aufmerksamkeit, weil angenommen wird, dass diese einen Haupteinflussfaktor auf Telomerverkürzung darstellen. Da schlechte Bedingungen während der Entwicklung Telomerverkürzung beschleunigen und das Wachstum beeinträchtigen können (was zu einer geringen Adultgröße führt), ist eine positive Korrelation zwischen TL und Körpergröße zu erwarten. Überraschenderweise ist jedoch die Beziehung zwischen Köpergröße und Telomerlänge bei freilebenden Wirbeltieren bislang kaum beschrieben worden. Hier haben wir diese Frage an männlichen überwinternden Schnäpperwaldsängern (Setophaga ruticilla) untersucht, die entweder einjährig oder mehrjährig waren. Obwohl die Tarsuslänge nicht mit der TL in Beziehung stand, fanden wir eine signifikante positive Korrelation zwischen der Schnabelgröße und TL bei einjährigen männlichen Schnäpperwaldsängern, was die Idee unterstützt, dass Faktoren, die gewisse Aspekte der individuellen Größe bestimmen, bei jungen Vögeln auch wichtig für die Bestimmung der TL sind. Außerdem fanden wir diese positive Beziehung zwischen Schnabelgröße und TL auch für die mehrjährigen Vögel, was darauf hindeutet, dass die adulte TL zumindest teilweise mit der Telomerdynamik, die während der Entwicklungsphase auftrat, erklärt werden kann.
Starting Page	525
Ending Page	531
Page Count	7
File Format	PDF
ISSN	21937192
Journal	Journal für Ornithologie
Volume Number	156
Issue Number	2
e-ISSN	21937206
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-02-03
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Telomeres Body size Development Setophaga ruticilla Zoology Animal Ecology Evolutionary Biology
Content Type	Text
Resource Type	Article

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Bill size correlates with telomere length in male American Redstarts

Patterns and correlates of extrapair paternity in American redstarts (Setophaga ruticilla)

Short-term changes in body condition in relation to habitat and rainfall abundance in American redstarts Setophaga ruticilla during the non-breeding season

Breeding dispersions and site fidelity of American redstarts (Setophaga ruticilla)

Redstarts (setophaga ruticilla).

Data from: Extra-pair offspring are less heterozygous than within-pair offspring in American redstarts (Setophaga ruticilla) (Dataset)

Dual strategies of song development in American redstarts, Setophaga ruticilla

Off-territory movement of male American Redstarts (Setophaga ruticilla) in a fragmented agricultural landscape is related to song rate, mating status and access to females

Extra‐pair offspring are less heterozygous than within‐pair offspring in American redstarts Setophaga ruticilla

Bill size correlates with telomere length in male American Redstarts

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Bill size correlates with telomere length in male American Redstarts

Patterns and correlates of extrapair paternity in American redstarts (Setophaga ruticilla)

Short-term changes in body condition in relation to habitat and rainfall abundance in American redstarts Setophaga ruticilla during the non-breeding season

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Bill size correlates with telomere length in male American Redstarts