Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird

Obligate avian brood parasites lay their eggs in nests of other species (hosts), which raise parasitic young. Parasitic nestlings are likely to influence host's parental behaviours as they typically beg for food more vigorously than young host for a given hunger level. However, few studies have...

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Autores principales: Ursino, C.A., De Mársico, M.C., Sued, M., Farall, A., Reboreda, J.C.
Formato: JOUR
Materias:
Agelaioides badius
Brood parasitism
Cooperative breeding
Molothrus
Nest provisioning
avifauna
brood parasitism
brood size
cooperative breeding
egg
nestling
parental care
passerine
recruitment (population dynamics)
Aves
Molothrus bonariensis
Molothrus rufoaxillaris
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03405443_v65_n12_p2279_Ursino
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03405443_v65_n12_p2279_Ursino
record_format dspace
spelling todo:paper_03405443_v65_n12_p2279_Ursino2023-10-03T15:25:41Z Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird Ursino, C.A. De Mársico, M.C. Sued, M. Farall, A. Reboreda, J.C. Agelaioides badius Brood parasitism Cooperative breeding Molothrus Nest provisioning avifauna brood parasitism brood size cooperative breeding egg nestling parental care passerine recruitment (population dynamics) Aves Molothrus Molothrus bonariensis Molothrus rufoaxillaris Obligate avian brood parasites lay their eggs in nests of other species (hosts), which raise parasitic young. Parasitic nestlings are likely to influence host's parental behaviours as they typically beg for food more vigorously than young host for a given hunger level. However, few studies have tested this idea, with conflicting results. These prior studies were largely limited to biparental hosts, but little is known about the effect of brood parasitism on parental behaviours in hosts that breed cooperatively. We followed a multimodel approach to examine the effect of brood parasitism on nest provisioning and helper recruitment in the baywing (Agelaioides badius), a cooperative breeder parasitised by screaming (Molothrus rufoaxillaris) and shiny (Molothrus bonariensis) cowbirds. Multimodel inference results indicated that feeding visits increased with nestling age, cooperative group size and number of cowbird nestlings in the brood. Brood size had little influence on feeding visits, which further suggests that baywings adjusted their provisioning effort in response to cowbird parasitism. In addition, nests parasitised artificially with shiny cowbird eggs or hatchlings recruited more helpers than unmanipulated nests having only host or screaming cowbird young. Our results provide novel evidence that brood parasitism and cooperative breeding interact in determining the levels of nest provisioning. © 2011 Springer-Verlag. Fil:Ursino, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:De Mársico, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sued, M. 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_03405443_v65_n12_p2279_Ursino
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Agelaioides badius
Brood parasitism
Cooperative breeding
Molothrus
Nest provisioning
avifauna
brood parasitism
brood size
cooperative breeding
egg
nestling
parental care
passerine
recruitment (population dynamics)
Aves
Molothrus
Molothrus bonariensis
Molothrus rufoaxillaris
spellingShingle Agelaioides badius
Brood parasitism
Cooperative breeding
Molothrus
Nest provisioning
avifauna
brood parasitism
brood size
cooperative breeding
egg
nestling
parental care
passerine
recruitment (population dynamics)
Aves
Molothrus
Molothrus bonariensis
Molothrus rufoaxillaris
Ursino, C.A.
De Mársico, M.C.
Sued, M.
Farall, A.
Reboreda, J.C.
Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird
topic_facet Agelaioides badius
Brood parasitism
Cooperative breeding
Molothrus
Nest provisioning
avifauna
brood parasitism
brood size
cooperative breeding
egg
nestling
parental care
passerine
recruitment (population dynamics)
Aves
Molothrus
Molothrus bonariensis
Molothrus rufoaxillaris
description Obligate avian brood parasites lay their eggs in nests of other species (hosts), which raise parasitic young. Parasitic nestlings are likely to influence host's parental behaviours as they typically beg for food more vigorously than young host for a given hunger level. However, few studies have tested this idea, with conflicting results. These prior studies were largely limited to biparental hosts, but little is known about the effect of brood parasitism on parental behaviours in hosts that breed cooperatively. We followed a multimodel approach to examine the effect of brood parasitism on nest provisioning and helper recruitment in the baywing (Agelaioides badius), a cooperative breeder parasitised by screaming (Molothrus rufoaxillaris) and shiny (Molothrus bonariensis) cowbirds. Multimodel inference results indicated that feeding visits increased with nestling age, cooperative group size and number of cowbird nestlings in the brood. Brood size had little influence on feeding visits, which further suggests that baywings adjusted their provisioning effort in response to cowbird parasitism. In addition, nests parasitised artificially with shiny cowbird eggs or hatchlings recruited more helpers than unmanipulated nests having only host or screaming cowbird young. Our results provide novel evidence that brood parasitism and cooperative breeding interact in determining the levels of nest provisioning. © 2011 Springer-Verlag.
format JOUR
author Ursino, C.A.
De Mársico, M.C.
Sued, M.
Farall, A.
Reboreda, J.C.
author_facet Ursino, C.A.
De Mársico, M.C.
Sued, M.
Farall, A.
Reboreda, J.C.
author_sort Ursino, C.A.
title Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird
title_short Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird
title_full Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird
title_fullStr Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird
title_full_unstemmed Brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird
title_sort brood parasitism disproportionately increases nest provisioning and helper recruitment in a cooperatively breeding bird
url http://hdl.handle.net/20.500.12110/paper_03405443_v65_n12_p2279_Ursino
work_keys_str_mv AT ursinoca broodparasitismdisproportionatelyincreasesnestprovisioningandhelperrecruitmentinacooperativelybreedingbird
AT demarsicomc broodparasitismdisproportionatelyincreasesnestprovisioningandhelperrecruitmentinacooperativelybreedingbird
AT suedm broodparasitismdisproportionatelyincreasesnestprovisioningandhelperrecruitmentinacooperativelybreedingbird
AT faralla broodparasitismdisproportionatelyincreasesnestprovisioningandhelperrecruitmentinacooperativelybreedingbird
AT reboredajc broodparasitismdisproportionatelyincreasesnestprovisioningandhelperrecruitmentinacooperativelybreedingbird
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