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A recipe for postfledging survival in great tits Parus major: be large and be early (but not too much)

AutorRodríguez, Samuel; Van Noordwijk, Arie J.; Álvarez, Elena; Barba, Emilio
Palabras claveBreeding success
Cormack–Jolly–Seber models
Fledging condition
Hyperthermia
Long-term study
Fecha de publicaciónjul-2016
EditorJohn Wiley & Sons
European Society of Evolutionary Biology
Society for the Study of Evolution
CitaciónEcology and Evolution 13(6): 4458-4467 (2016)
ResumenSurvival of juveniles during the postfledging period can be markedly low, which may have major consequences on avian population dynamics. Knowing which factors operating during the nesting phase affect postfledging survival is crucial to understand avian breeding strategies. We aimed to obtain a robust set of predictors of postfledging local survival using the great tit (Parus major) as a model species. We used mark–recapture models to analyze the effect of hatching date, temperatures experienced during the nestling period, fledging size and body mass on first-year postfledging survival probability of great tit juveniles. We used data from 5192 nestlings of first clutches ringed between 1993 and 2010. Mean first-year postfledging survival probability was 15.2%, and it was lower for smaller individuals, as well as for those born in either very early or late broods. Our results stress the importance of choosing an optimum hatching period, and raising large chicks to increase first-year local survival probability in the studied population.
Versión del editorhttp://dx.doi.org/10.1002/ece3.2192
URIhttp://hdl.handle.net/10261/136125
DOI10.1002/ece3.2192
E-ISSN2045-7758
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