Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)

Autores
Delhey, Kaspar; Carrizo, Martín Andrés; Verniere, Lucas Camilo; Mahler, Bettina; Peters, Anne
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The risk of breeding failure often varies strongly over the breeding season. If birds optimize production of offspring accordingly, investment in reproduction should be lowest when food for young is scarce or nest predation risk is highest. Evidence for this hypothesis is mixed and stems mainly from studies on northern temperate birds, and it is unclear whether these patterns apply to southern temperate birds with "slow" life histories that resemble those of tropical birds. We studied seasonal variation in reproductive investment and nesting success in a Neotropical temperate suboscine, the Firewood-gatherer (Anumbius annumbi). Pairs produced an average of 2.8 clutches over the very long (August-April) breeding season. Clutch size (mean = 5.1 eggs, range: 3-8) was very variable between and within pairs and showed an initial increase followed by a decline, the typical pattern of variation for multibrooded temperate species. The main determinant of breeding success was predation. Although the probability of nest failure increased over the season from 70% to >90%, clutch size was not correlated with failure risk. Egg volume did not show consistent seasonal patterns. Our results suggest that reproductive investment is not optimally adjusted to the seasonal variation in nest predation risk, and more research is needed to assess the influence of food availability.
Fil: Delhey, Kaspar. Max Planck Institute For Ornithology; Alemania
Fil: Carrizo, Martín Andrés. Universidad Nacional del Sur; Argentina
Fil: Verniere, Lucas Camilo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; Argentina
Fil: Mahler, Bettina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Peters, Anne. Max Planck Institute For Ornithology; Alemania
Materia
Anumbius Annumbi
Argentina
Clutch Size
Egg Volume
Firewood-Gatherer
Furnariidae
Laying Date
Nest Predation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68772
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)Delhey, KasparCarrizo, Martín AndrésVerniere, Lucas CamiloMahler, BettinaPeters, AnneAnumbius AnnumbiArgentinaClutch SizeEgg VolumeFirewood-GathererFurnariidaeLaying DateNest Predationhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The risk of breeding failure often varies strongly over the breeding season. If birds optimize production of offspring accordingly, investment in reproduction should be lowest when food for young is scarce or nest predation risk is highest. Evidence for this hypothesis is mixed and stems mainly from studies on northern temperate birds, and it is unclear whether these patterns apply to southern temperate birds with "slow" life histories that resemble those of tropical birds. We studied seasonal variation in reproductive investment and nesting success in a Neotropical temperate suboscine, the Firewood-gatherer (Anumbius annumbi). Pairs produced an average of 2.8 clutches over the very long (August-April) breeding season. Clutch size (mean = 5.1 eggs, range: 3-8) was very variable between and within pairs and showed an initial increase followed by a decline, the typical pattern of variation for multibrooded temperate species. The main determinant of breeding success was predation. Although the probability of nest failure increased over the season from 70% to >90%, clutch size was not correlated with failure risk. Egg volume did not show consistent seasonal patterns. Our results suggest that reproductive investment is not optimally adjusted to the seasonal variation in nest predation risk, and more research is needed to assess the influence of food availability.Fil: Delhey, Kaspar. Max Planck Institute For Ornithology; AlemaniaFil: Carrizo, Martín Andrés. Universidad Nacional del Sur; ArgentinaFil: Verniere, Lucas Camilo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; ArgentinaFil: Mahler, Bettina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Peters, Anne. Max Planck Institute For Ornithology; AlemaniaAmerican Ornithologists' Union2010-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68772Delhey, Kaspar; Carrizo, Martín Andrés; Verniere, Lucas Camilo; Mahler, Bettina; Peters, Anne; Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi); American Ornithologists' Union; Auk; 127; 1; 1-2010; 222-2310004-80381938-4254CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1525/auk.2009.09050info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/the-auk/volume-127/issue-1/auk.2009.09050/Seasonal-Variation-in-Reproductive-Output-of-a-Neotropical-Temperate-Suboscine/10.1525/auk.2009.09050.shortinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:16:31Zoai:ri.conicet.gov.ar:11336/68772instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:16:32.166CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
title Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
spellingShingle Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
Delhey, Kaspar
Anumbius Annumbi
Argentina
Clutch Size
Egg Volume
Firewood-Gatherer
Furnariidae
Laying Date
Nest Predation
title_short Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
title_full Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
title_fullStr Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
title_full_unstemmed Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
title_sort Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
dc.creator.none.fl_str_mv Delhey, Kaspar
Carrizo, Martín Andrés
Verniere, Lucas Camilo
Mahler, Bettina
Peters, Anne
author Delhey, Kaspar
author_facet Delhey, Kaspar
Carrizo, Martín Andrés
Verniere, Lucas Camilo
Mahler, Bettina
Peters, Anne
author_role author
author2 Carrizo, Martín Andrés
Verniere, Lucas Camilo
Mahler, Bettina
Peters, Anne
author2_role author
author
author
author
dc.subject.none.fl_str_mv Anumbius Annumbi
Argentina
Clutch Size
Egg Volume
Firewood-Gatherer
Furnariidae
Laying Date
Nest Predation
topic Anumbius Annumbi
Argentina
Clutch Size
Egg Volume
Firewood-Gatherer
Furnariidae
Laying Date
Nest Predation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The risk of breeding failure often varies strongly over the breeding season. If birds optimize production of offspring accordingly, investment in reproduction should be lowest when food for young is scarce or nest predation risk is highest. Evidence for this hypothesis is mixed and stems mainly from studies on northern temperate birds, and it is unclear whether these patterns apply to southern temperate birds with "slow" life histories that resemble those of tropical birds. We studied seasonal variation in reproductive investment and nesting success in a Neotropical temperate suboscine, the Firewood-gatherer (Anumbius annumbi). Pairs produced an average of 2.8 clutches over the very long (August-April) breeding season. Clutch size (mean = 5.1 eggs, range: 3-8) was very variable between and within pairs and showed an initial increase followed by a decline, the typical pattern of variation for multibrooded temperate species. The main determinant of breeding success was predation. Although the probability of nest failure increased over the season from 70% to >90%, clutch size was not correlated with failure risk. Egg volume did not show consistent seasonal patterns. Our results suggest that reproductive investment is not optimally adjusted to the seasonal variation in nest predation risk, and more research is needed to assess the influence of food availability.
Fil: Delhey, Kaspar. Max Planck Institute For Ornithology; Alemania
Fil: Carrizo, Martín Andrés. Universidad Nacional del Sur; Argentina
Fil: Verniere, Lucas Camilo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; Argentina
Fil: Mahler, Bettina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Peters, Anne. Max Planck Institute For Ornithology; Alemania
description The risk of breeding failure often varies strongly over the breeding season. If birds optimize production of offspring accordingly, investment in reproduction should be lowest when food for young is scarce or nest predation risk is highest. Evidence for this hypothesis is mixed and stems mainly from studies on northern temperate birds, and it is unclear whether these patterns apply to southern temperate birds with "slow" life histories that resemble those of tropical birds. We studied seasonal variation in reproductive investment and nesting success in a Neotropical temperate suboscine, the Firewood-gatherer (Anumbius annumbi). Pairs produced an average of 2.8 clutches over the very long (August-April) breeding season. Clutch size (mean = 5.1 eggs, range: 3-8) was very variable between and within pairs and showed an initial increase followed by a decline, the typical pattern of variation for multibrooded temperate species. The main determinant of breeding success was predation. Although the probability of nest failure increased over the season from 70% to >90%, clutch size was not correlated with failure risk. Egg volume did not show consistent seasonal patterns. Our results suggest that reproductive investment is not optimally adjusted to the seasonal variation in nest predation risk, and more research is needed to assess the influence of food availability.
publishDate 2010
dc.date.none.fl_str_mv 2010-01
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/11336/68772
Delhey, Kaspar; Carrizo, Martín Andrés; Verniere, Lucas Camilo; Mahler, Bettina; Peters, Anne; Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi); American Ornithologists' Union; Auk; 127; 1; 1-2010; 222-231
0004-8038
1938-4254
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68772
identifier_str_mv Delhey, Kaspar; Carrizo, Martín Andrés; Verniere, Lucas Camilo; Mahler, Bettina; Peters, Anne; Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi); American Ornithologists' Union; Auk; 127; 1; 1-2010; 222-231
0004-8038
1938-4254
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1525/auk.2009.09050
info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/the-auk/volume-127/issue-1/auk.2009.09050/Seasonal-Variation-in-Reproductive-Output-of-a-Neotropical-Temperate-Suboscine/10.1525/auk.2009.09050.short
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Ornithologists' Union
publisher.none.fl_str_mv American Ornithologists' Union
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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