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dc.contributor.author
Delhey, Kaspar
dc.contributor.author
Carrizo, Martín Andrés
dc.contributor.author
Verniere, Lucas Camilo
dc.contributor.author
Mahler, Bettina
dc.contributor.author
Peters, Anne
dc.date.available
2019-01-28T18:14:15Z
dc.date.issued
2010-01
dc.identifier.citation
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
dc.identifier.issn
0004-8038
dc.identifier.uri
http://hdl.handle.net/11336/68772
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Ornithologists' Union
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Anumbius Annumbi
dc.subject
Argentina
dc.subject
Clutch Size
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Egg Volume
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Firewood-Gatherer
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Furnariidae
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Laying Date
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Nest Predation
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Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Seasonal Variation in Reproductive Output of a Neotropical Temperate Suboscine, the Firewood-gatherer (Anumbius annumbi)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-25T13:41:19Z
dc.identifier.eissn
1938-4254
dc.journal.volume
127
dc.journal.number
1
dc.journal.pagination
222-231
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Delhey, Kaspar. Max Planck Institute For Ornithology; Alemania
dc.description.fil
Fil: Carrizo, Martín Andrés. Universidad Nacional del Sur; Argentina
dc.description.fil
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
dc.description.fil
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
dc.description.fil
Fil: Peters, Anne. Max Planck Institute For Ornithology; Alemania
dc.journal.title
Auk
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1525/auk.2009.09050
dc.relation.alternativeid
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
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