Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas
- Autores
- Fernández, G.J.; Mermoz, M.E.; Llambías, P.E.; Manuela Pujol, E.
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this paper we present data on the nesting success and life history traits of the Scarlet-headed Blackbird (Amblyramphus holosericeus) nesting in the Argentinean pampas. During the 1995-1997 and 2001-2002 breeding seasons (September-December), we found 60 Scarlet-headed Blackbird nests. About 40% of these nests produced fledglings, and daily nest mortality did not differ among nesting stages (laying, incubation, nestling). Clutch size was 3 eggs, and the mean number of fledglings was 1.33 ± 0.78. Brood reduction was a common cause of nestling loss as 39% of nest with more than 1 nestling lost the last hatched one. Results obtained from experimental nests indicate that parent nest attention increases the probability of nest success as natural nests showed a lower predation rate. We suggest that the high nest attention detected in this species could be responsible for the higher nesting success compared to other sympatric marsh nesting species. However, high nest attendance could also imply an additional cost as it may constrain the time available to parents for foraging, thus limiting the food delivered to nestlings. © The Neotropical Ornithological Society.
Fil:Fernández, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Mermoz, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Llambías, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. - Fuente
- Ornitol. Neotrop. 2007;18(3):407-419
- Materia
-
Amblyramphus holosericeus
Nest predation
Nesting behavior
Nesting success
Scarlet-headed blackbird
Territoriality - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/2.5/ar
- Repositorio
- Institución
- Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
- OAI Identificador
- paperaa:paper_10754377_v18_n3_p407_Fernandez
Ver los metadatos del registro completo
id |
BDUBAFCEN_d1f69b1f7f345ff06e6df79d3b4c821d |
---|---|
oai_identifier_str |
paperaa:paper_10754377_v18_n3_p407_Fernandez |
network_acronym_str |
BDUBAFCEN |
repository_id_str |
1896 |
network_name_str |
Biblioteca Digital (UBA-FCEN) |
spelling |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean PampasFernández, G.J.Mermoz, M.E.Llambías, P.E.Manuela Pujol, E.Amblyramphus holosericeusNest predationNesting behaviorNesting successScarlet-headed blackbirdTerritorialityIn this paper we present data on the nesting success and life history traits of the Scarlet-headed Blackbird (Amblyramphus holosericeus) nesting in the Argentinean pampas. During the 1995-1997 and 2001-2002 breeding seasons (September-December), we found 60 Scarlet-headed Blackbird nests. About 40% of these nests produced fledglings, and daily nest mortality did not differ among nesting stages (laying, incubation, nestling). Clutch size was 3 eggs, and the mean number of fledglings was 1.33 ± 0.78. Brood reduction was a common cause of nestling loss as 39% of nest with more than 1 nestling lost the last hatched one. Results obtained from experimental nests indicate that parent nest attention increases the probability of nest success as natural nests showed a lower predation rate. We suggest that the high nest attention detected in this species could be responsible for the higher nesting success compared to other sympatric marsh nesting species. However, high nest attendance could also imply an additional cost as it may constrain the time available to parents for foraging, thus limiting the food delivered to nestlings. © The Neotropical Ornithological Society.Fil:Fernández, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Mermoz, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Llambías, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2007info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_10754377_v18_n3_p407_FernandezOrnitol. Neotrop. 2007;18(3):407-419reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:42:49Zpaperaa:paper_10754377_v18_n3_p407_FernandezInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:50.817Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse |
dc.title.none.fl_str_mv |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas |
title |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas |
spellingShingle |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas Fernández, G.J. Amblyramphus holosericeus Nest predation Nesting behavior Nesting success Scarlet-headed blackbird Territoriality |
title_short |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas |
title_full |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas |
title_fullStr |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas |
title_full_unstemmed |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas |
title_sort |
Life history traits and breeding success of the scarlet-headed blackbird (Amblyramphus holosericeus) in the Argentinean Pampas |
dc.creator.none.fl_str_mv |
Fernández, G.J. Mermoz, M.E. Llambías, P.E. Manuela Pujol, E. |
author |
Fernández, G.J. |
author_facet |
Fernández, G.J. Mermoz, M.E. Llambías, P.E. Manuela Pujol, E. |
author_role |
author |
author2 |
Mermoz, M.E. Llambías, P.E. Manuela Pujol, E. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Amblyramphus holosericeus Nest predation Nesting behavior Nesting success Scarlet-headed blackbird Territoriality |
topic |
Amblyramphus holosericeus Nest predation Nesting behavior Nesting success Scarlet-headed blackbird Territoriality |
dc.description.none.fl_txt_mv |
In this paper we present data on the nesting success and life history traits of the Scarlet-headed Blackbird (Amblyramphus holosericeus) nesting in the Argentinean pampas. During the 1995-1997 and 2001-2002 breeding seasons (September-December), we found 60 Scarlet-headed Blackbird nests. About 40% of these nests produced fledglings, and daily nest mortality did not differ among nesting stages (laying, incubation, nestling). Clutch size was 3 eggs, and the mean number of fledglings was 1.33 ± 0.78. Brood reduction was a common cause of nestling loss as 39% of nest with more than 1 nestling lost the last hatched one. Results obtained from experimental nests indicate that parent nest attention increases the probability of nest success as natural nests showed a lower predation rate. We suggest that the high nest attention detected in this species could be responsible for the higher nesting success compared to other sympatric marsh nesting species. However, high nest attendance could also imply an additional cost as it may constrain the time available to parents for foraging, thus limiting the food delivered to nestlings. © The Neotropical Ornithological Society. Fil:Fernández, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mermoz, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Llambías, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
description |
In this paper we present data on the nesting success and life history traits of the Scarlet-headed Blackbird (Amblyramphus holosericeus) nesting in the Argentinean pampas. During the 1995-1997 and 2001-2002 breeding seasons (September-December), we found 60 Scarlet-headed Blackbird nests. About 40% of these nests produced fledglings, and daily nest mortality did not differ among nesting stages (laying, incubation, nestling). Clutch size was 3 eggs, and the mean number of fledglings was 1.33 ± 0.78. Brood reduction was a common cause of nestling loss as 39% of nest with more than 1 nestling lost the last hatched one. Results obtained from experimental nests indicate that parent nest attention increases the probability of nest success as natural nests showed a lower predation rate. We suggest that the high nest attention detected in this species could be responsible for the higher nesting success compared to other sympatric marsh nesting species. However, high nest attendance could also imply an additional cost as it may constrain the time available to parents for foraging, thus limiting the food delivered to nestlings. © The Neotropical Ornithological Society. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12110/paper_10754377_v18_n3_p407_Fernandez |
url |
http://hdl.handle.net/20.500.12110/paper_10754377_v18_n3_p407_Fernandez |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/2.5/ar |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Ornitol. Neotrop. 2007;18(3):407-419 reponame:Biblioteca Digital (UBA-FCEN) instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales instacron:UBA-FCEN |
reponame_str |
Biblioteca Digital (UBA-FCEN) |
collection |
Biblioteca Digital (UBA-FCEN) |
instname_str |
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
instacron_str |
UBA-FCEN |
institution |
UBA-FCEN |
repository.name.fl_str_mv |
Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
repository.mail.fl_str_mv |
ana@bl.fcen.uba.ar |
_version_ |
1844618733267451904 |
score |
13.070432 |