Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)

We analysed growth of nestling Chilean Swallows (Tachycineta meyeni) over four consecutive breeding seasons and determined the factors that explain variation in growth rate, asymptotic body mass and length of the nestling period. As the breeding season advanced nestlings grew more slowly and attaine...

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Autores principales:	Liljesthrom, Marcela, Schiavini, Adrian Carlos Miguel, Reboreda, Juan Carlos
Publicado:	2012
Materias:	body condition breeding season environmental conditions female growth rate latitude life history trait nesting Northern Hemisphere passerine reproductive behavior Chile Aves Hirundinidae Tachycineta Tachycineta meyeni
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01584197_v112_n2_p157_Liljesthrom http://hdl.handle.net/20.500.12110/paper_01584197_v112_n2_p157_Liljesthrom
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01584197_v112_n2_p157_Liljesthrom
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spelling	paper:paper_01584197_v112_n2_p157_Liljesthrom2023-06-08T15:13:19Z Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni) Liljesthrom, Marcela Schiavini, Adrian Carlos Miguel Reboreda, Juan Carlos body condition breeding season environmental conditions female growth rate latitude life history trait nesting Northern Hemisphere passerine reproductive behavior Chile Aves Hirundinidae Tachycineta Tachycineta meyeni We analysed growth of nestling Chilean Swallows (Tachycineta meyeni) over four consecutive breeding seasons and determined the factors that explain variation in growth rate, asymptotic body mass and length of the nestling period. As the breeding season advanced nestlings grew more slowly and attained lower asymptotic mass, but the length of the nestling period and nestling survival did not show any seasonal trend. Asymptotic body mass of nestlings increased with female body condition, which was negatively correlated with time of breeding, suggesting that a seasonal decline in asymptotic body mass could be the result of changes in environmental conditions or lower quality of females breeding later in the season. There was no relationship between average minimum ambient temperature and either growth rate or asymptotic mass during the nestlings first 10 days. However, short periods of poor weather and snowfall had a significant effect on nestling survival. Growth rate (0.43) was lower than that of other Tachycineta species nesting at similar latitudes in the northern hemisphere but similar to those of subtropical species of the genus, suggesting that the factors that have influenced the evolution of this life-history trait differ between Chilean Swallows and other species of Tachycineta. © 2012 BirdLife Australia. Fil:Liljesthröm, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Schiavini, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Reboreda, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01584197_v112_n2_p157_Liljesthrom http://hdl.handle.net/20.500.12110/paper_01584197_v112_n2_p157_Liljesthrom
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	body condition breeding season environmental conditions female growth rate latitude life history trait nesting Northern Hemisphere passerine reproductive behavior Chile Aves Hirundinidae Tachycineta Tachycineta meyeni
spellingShingle	body condition breeding season environmental conditions female growth rate latitude life history trait nesting Northern Hemisphere passerine reproductive behavior Chile Aves Hirundinidae Tachycineta Tachycineta meyeni Liljesthrom, Marcela Schiavini, Adrian Carlos Miguel Reboreda, Juan Carlos Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)
topic_facet	body condition breeding season environmental conditions female growth rate latitude life history trait nesting Northern Hemisphere passerine reproductive behavior Chile Aves Hirundinidae Tachycineta Tachycineta meyeni
description	We analysed growth of nestling Chilean Swallows (Tachycineta meyeni) over four consecutive breeding seasons and determined the factors that explain variation in growth rate, asymptotic body mass and length of the nestling period. As the breeding season advanced nestlings grew more slowly and attained lower asymptotic mass, but the length of the nestling period and nestling survival did not show any seasonal trend. Asymptotic body mass of nestlings increased with female body condition, which was negatively correlated with time of breeding, suggesting that a seasonal decline in asymptotic body mass could be the result of changes in environmental conditions or lower quality of females breeding later in the season. There was no relationship between average minimum ambient temperature and either growth rate or asymptotic mass during the nestlings first 10 days. However, short periods of poor weather and snowfall had a significant effect on nestling survival. Growth rate (0.43) was lower than that of other Tachycineta species nesting at similar latitudes in the northern hemisphere but similar to those of subtropical species of the genus, suggesting that the factors that have influenced the evolution of this life-history trait differ between Chilean Swallows and other species of Tachycineta. © 2012 BirdLife Australia.
author	Liljesthrom, Marcela Schiavini, Adrian Carlos Miguel Reboreda, Juan Carlos
author_facet	Liljesthrom, Marcela Schiavini, Adrian Carlos Miguel Reboreda, Juan Carlos
author_sort	Liljesthrom, Marcela
title	Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)
title_short	Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)
title_full	Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)
title_fullStr	Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)
title_full_unstemmed	Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)
title_sort	time of breeding and female condition affect chick-growth in the chilean swallow (tachycineta meyeni)
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01584197_v112_n2_p157_Liljesthrom http://hdl.handle.net/20.500.12110/paper_01584197_v112_n2_p157_Liljesthrom
work_keys_str_mv	AT liljesthrommarcela timeofbreedingandfemaleconditionaffectchickgrowthinthechileanswallowtachycinetameyeni AT schiaviniadriancarlosmiguel timeofbreedingandfemaleconditionaffectchickgrowthinthechileanswallowtachycinetameyeni AT reboredajuancarlos timeofbreedingandfemaleconditionaffectchickgrowthinthechileanswallowtachycinetameyeni
_version_	1768542982691094528

Time of breeding and female condition affect chick-growth in the Chilean Swallow (Tachycineta meyeni)

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