Brood parasitism of White-rumped Swallows by Shiny Cowbirds

Swallows and martins are infrequent hosts of the generalist brood parasite Shiny Cowbird (Molothrus bonariensis). We monitored 50 nesting attempts by White-rumped Swallows (Tachycineta leucorrhoa) over a two-year period in Argentina and detected low rates of brood parasitism (three nests, or 6%). Of...

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Detalles Bibliográficos
Autores principales: Massoni, V., Winkler, D.W., Reboreda, J.C.
Formato: JOUR
Materias:
Brood parasitism
Molothrus bonariensis
Shiny Cowbird
Tachycineta leucorrhoa
White-rumped Swallow
Aves
Hirundinidae
Molothrus
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02738570_v77_n1_p80_Massoni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_02738570_v77_n1_p80_Massoni
record_format dspace
spelling todo:paper_02738570_v77_n1_p80_Massoni2023-10-03T15:15:51Z Brood parasitism of White-rumped Swallows by Shiny Cowbirds Massoni, V. Winkler, D.W. Reboreda, J.C. Brood parasitism Molothrus bonariensis Shiny Cowbird Tachycineta leucorrhoa White-rumped Swallow Aves Hirundinidae Molothrus Molothrus bonariensis Tachycineta leucorrhoa Swallows and martins are infrequent hosts of the generalist brood parasite Shiny Cowbird (Molothrus bonariensis). We monitored 50 nesting attempts by White-rumped Swallows (Tachycineta leucorrhoa) over a two-year period in Argentina and detected low rates of brood parasitism (three nests, or 6%). Of the three nests parasitized, cowbirds (N= 1 per nest) successfully fledged from two. Eight of 13 swallow eggs in these three nests were punctured by cowbirds, and all but one swallow nesting starved at the two parasitized nests. At least two factors may contribute to the low frequency of parasitism of White-rumped Swallows by Shiny Cowbirds, including the inability of the larger cowbirds to enter some nest cavities and the aggressive nest defense behavior of adult swallows. ©2006 Association of Field Ornithologists. Fil:Massoni, V. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02738570_v77_n1_p80_Massoni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Brood parasitism
Molothrus bonariensis
Shiny Cowbird
Tachycineta leucorrhoa
White-rumped Swallow
Aves
Hirundinidae
Molothrus
Molothrus bonariensis
Tachycineta leucorrhoa
spellingShingle Brood parasitism
Molothrus bonariensis
Shiny Cowbird
Tachycineta leucorrhoa
White-rumped Swallow
Aves
Hirundinidae
Molothrus
Molothrus bonariensis
Tachycineta leucorrhoa
Massoni, V.
Winkler, D.W.
Reboreda, J.C.
Brood parasitism of White-rumped Swallows by Shiny Cowbirds
topic_facet Brood parasitism
Molothrus bonariensis
Shiny Cowbird
Tachycineta leucorrhoa
White-rumped Swallow
Aves
Hirundinidae
Molothrus
Molothrus bonariensis
Tachycineta leucorrhoa
description Swallows and martins are infrequent hosts of the generalist brood parasite Shiny Cowbird (Molothrus bonariensis). We monitored 50 nesting attempts by White-rumped Swallows (Tachycineta leucorrhoa) over a two-year period in Argentina and detected low rates of brood parasitism (three nests, or 6%). Of the three nests parasitized, cowbirds (N= 1 per nest) successfully fledged from two. Eight of 13 swallow eggs in these three nests were punctured by cowbirds, and all but one swallow nesting starved at the two parasitized nests. At least two factors may contribute to the low frequency of parasitism of White-rumped Swallows by Shiny Cowbirds, including the inability of the larger cowbirds to enter some nest cavities and the aggressive nest defense behavior of adult swallows. ©2006 Association of Field Ornithologists.
format JOUR
author Massoni, V.
Winkler, D.W.
Reboreda, J.C.
author_facet Massoni, V.
Winkler, D.W.
Reboreda, J.C.
author_sort Massoni, V.
title Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_short Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_full Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_fullStr Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_full_unstemmed Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_sort brood parasitism of white-rumped swallows by shiny cowbirds
url http://hdl.handle.net/20.500.12110/paper_02738570_v77_n1_p80_Massoni
work_keys_str_mv AT massoniv broodparasitismofwhiterumpedswallowsbyshinycowbirds
AT winklerdw broodparasitismofwhiterumpedswallowsbyshinycowbirds
AT reboredajc broodparasitismofwhiterumpedswallowsbyshinycowbirds
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