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Factors affecting fledgling output of great tits, Parus major, in the long term

AuthorsRodríguez, S.; Álvarez, Elena; Barba, Emilio
KeywordsBrood size
Long–term study
Nestling survival
Fledgling production
Issue Date2016
PublisherMuseo de Ciencias Naturales (Barcelona)
CitationAnimal Biodiversity and Conservation 39(2): 147-154 (2016)
AbstractFledgling production has often been used as an estimator of avian reproductive success, and it is conditioned by factors affecting offspring development and/or survival during the nesting period. We aimed to determine which predictors influenced fledgling output among a set of basic breeding parameters and local temperature data collected over 25 years in a Mediterranean great tit, Parus major, population, using an information-theoretic approach for model selection. Of the studied variables, the number of hatchlings per nest was the single-most important predictor influencing fledgling production, with larger broods eventually yielding more fledglings, although mass prior to fledging may have been compromised. This result suggests an overall good adjustment between brood size and resource availability in the studied population.
Description© 2016 Museu de Ciències Naturals de Barcelona
Publisher version (URL)https://doi.org/10.32800/abc.2016.39.0147
Identifiersdoi: 10.32800/abc.2016.39.0147
issn: 1578-665X
Appears in Collections:(MNCN) Artículos
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