Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach

Autores
Tella, Jose Luis; Forero, M.G.; Bertellotti, Néstor Marcelo; Donázar, J.A.; Blanco, G.; Ceballos, O.
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Why avian colonies vary in size and how food competition among nearby colonies affects offspring quality are still not completely understood. We simultaneously examined the effects of four scales of breeding density on two measures of offspring viability (body condition and T-cell-mediated immunity) in the colonial Magellanic penguin. Body condition of fledglings was inversely correlated with breeding density within 100 m2 of nests, and decreased with increasing numbers of breeding pairs competing within the parental foraging ranges (100 km), probably as a result of density-dependent food depletion. The T-cell-mediated immune response was positively correlated with body condition, reflecting, to some extent, the previous breeding-density effects, and was negatively correlated with colony size, which may be related to social stress. However, given the effect of protein intake on cell immunity, this result could also indicate a thus far neglected cost of coloniality, namely the consumption of low-protein food to compensate for the depletion of optimal prey. These results were not influenced by other traits, nor by the current exposure of birds to parasites and diseases, as measured by serological variables. Since body condition and the T-cell-mediated immune response of fledgling birds are indicators of their survival and recruitment prospects, the costs we have identified can explain variability in colony size in relation to food competition with surrounding colonies, as well as the skewed distribution toward small colonies in this species.
Fil: Tella, Jose Luis. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Forero, M.G.. University of Saskatchewan; Canadá
Fil: Bertellotti, Néstor Marcelo. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Donázar, J.A.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Blanco, G.. Consejo Superior de Investigaciones Científicas. Instituto de Ciencia y Tecnologia de Alimentos y Nutrición; España
Fil: Ceballos, O.. Grupo de Estudios Biológicos Ugarra; España
Materia
BODY CONDITION
BREEDING DENSITY
COLONIALITY
IMMUNOCOMPETENCE
MAGELLANIC PENGUIN
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:11336/99456
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/99456
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approachTella, Jose LuisForero, M.G.Bertellotti, Néstor MarceloDonázar, J.A.Blanco, G.Ceballos, O.BODY CONDITIONBREEDING DENSITYCOLONIALITYIMMUNOCOMPETENCEMAGELLANIC PENGUINhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Why avian colonies vary in size and how food competition among nearby colonies affects offspring quality are still not completely understood. We simultaneously examined the effects of four scales of breeding density on two measures of offspring viability (body condition and T-cell-mediated immunity) in the colonial Magellanic penguin. Body condition of fledglings was inversely correlated with breeding density within 100 m2 of nests, and decreased with increasing numbers of breeding pairs competing within the parental foraging ranges (100 km), probably as a result of density-dependent food depletion. The T-cell-mediated immune response was positively correlated with body condition, reflecting, to some extent, the previous breeding-density effects, and was negatively correlated with colony size, which may be related to social stress. However, given the effect of protein intake on cell immunity, this result could also indicate a thus far neglected cost of coloniality, namely the consumption of low-protein food to compensate for the depletion of optimal prey. These results were not influenced by other traits, nor by the current exposure of birds to parasites and diseases, as measured by serological variables. Since body condition and the T-cell-mediated immune response of fledgling birds are indicators of their survival and recruitment prospects, the costs we have identified can explain variability in colony size in relation to food competition with surrounding colonies, as well as the skewed distribution toward small colonies in this species.Fil: Tella, Jose Luis. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; EspañaFil: Forero, M.G.. University of Saskatchewan; CanadáFil: Bertellotti, Néstor Marcelo. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaFil: Donázar, J.A.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; EspañaFil: Blanco, G.. Consejo Superior de Investigaciones Científicas. Instituto de Ciencia y Tecnologia de Alimentos y Nutrición; EspañaFil: Ceballos, O.. Grupo de Estudios Biológicos Ugarra; EspañaThe Royal Society2001-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/99456Tella, Jose Luis; Forero, M.G.; Bertellotti, Néstor Marcelo; Donázar, J.A.; Blanco, G.; et al.; Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 268; 1475; 3-2001; 1455-14610962-8452CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2001.1688info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rspb.2001.1688info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:38:58Zoai:ri.conicet.gov.ar:11336/99456instacron: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 10:38:59.078CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
title Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
spellingShingle Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
Tella, Jose Luis
BODY CONDITION
BREEDING DENSITY
COLONIALITY
IMMUNOCOMPETENCE
MAGELLANIC PENGUIN
title_short Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
title_full Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
title_fullStr Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
title_full_unstemmed Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
title_sort Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach
dc.creator.none.fl_str_mv Tella, Jose Luis
Forero, M.G.
Bertellotti, Néstor Marcelo
Donázar, J.A.
Blanco, G.
Ceballos, O.
author Tella, Jose Luis
author_facet Tella, Jose Luis
Forero, M.G.
Bertellotti, Néstor Marcelo
Donázar, J.A.
Blanco, G.
Ceballos, O.
author_role author
author2 Forero, M.G.
Bertellotti, Néstor Marcelo
Donázar, J.A.
Blanco, G.
Ceballos, O.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv BODY CONDITION
BREEDING DENSITY
COLONIALITY
IMMUNOCOMPETENCE
MAGELLANIC PENGUIN
topic BODY CONDITION
BREEDING DENSITY
COLONIALITY
IMMUNOCOMPETENCE
MAGELLANIC PENGUIN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Why avian colonies vary in size and how food competition among nearby colonies affects offspring quality are still not completely understood. We simultaneously examined the effects of four scales of breeding density on two measures of offspring viability (body condition and T-cell-mediated immunity) in the colonial Magellanic penguin. Body condition of fledglings was inversely correlated with breeding density within 100 m2 of nests, and decreased with increasing numbers of breeding pairs competing within the parental foraging ranges (100 km), probably as a result of density-dependent food depletion. The T-cell-mediated immune response was positively correlated with body condition, reflecting, to some extent, the previous breeding-density effects, and was negatively correlated with colony size, which may be related to social stress. However, given the effect of protein intake on cell immunity, this result could also indicate a thus far neglected cost of coloniality, namely the consumption of low-protein food to compensate for the depletion of optimal prey. These results were not influenced by other traits, nor by the current exposure of birds to parasites and diseases, as measured by serological variables. Since body condition and the T-cell-mediated immune response of fledgling birds are indicators of their survival and recruitment prospects, the costs we have identified can explain variability in colony size in relation to food competition with surrounding colonies, as well as the skewed distribution toward small colonies in this species.
Fil: Tella, Jose Luis. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Forero, M.G.. University of Saskatchewan; Canadá
Fil: Bertellotti, Néstor Marcelo. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Donázar, J.A.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
Fil: Blanco, G.. Consejo Superior de Investigaciones Científicas. Instituto de Ciencia y Tecnologia de Alimentos y Nutrición; España
Fil: Ceballos, O.. Grupo de Estudios Biológicos Ugarra; España
description Why avian colonies vary in size and how food competition among nearby colonies affects offspring quality are still not completely understood. We simultaneously examined the effects of four scales of breeding density on two measures of offspring viability (body condition and T-cell-mediated immunity) in the colonial Magellanic penguin. Body condition of fledglings was inversely correlated with breeding density within 100 m2 of nests, and decreased with increasing numbers of breeding pairs competing within the parental foraging ranges (100 km), probably as a result of density-dependent food depletion. The T-cell-mediated immune response was positively correlated with body condition, reflecting, to some extent, the previous breeding-density effects, and was negatively correlated with colony size, which may be related to social stress. However, given the effect of protein intake on cell immunity, this result could also indicate a thus far neglected cost of coloniality, namely the consumption of low-protein food to compensate for the depletion of optimal prey. These results were not influenced by other traits, nor by the current exposure of birds to parasites and diseases, as measured by serological variables. Since body condition and the T-cell-mediated immune response of fledgling birds are indicators of their survival and recruitment prospects, the costs we have identified can explain variability in colony size in relation to food competition with surrounding colonies, as well as the skewed distribution toward small colonies in this species.
publishDate 2001
dc.date.none.fl_str_mv 2001-03
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/11336/99456
Tella, Jose Luis; Forero, M.G.; Bertellotti, Néstor Marcelo; Donázar, J.A.; Blanco, G.; et al.; Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 268; 1475; 3-2001; 1455-1461
0962-8452
CONICET Digital
CONICET
url http://hdl.handle.net/11336/99456
identifier_str_mv Tella, Jose Luis; Forero, M.G.; Bertellotti, Néstor Marcelo; Donázar, J.A.; Blanco, G.; et al.; Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 268; 1475; 3-2001; 1455-1461
0962-8452
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2001.1688
info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rspb.2001.1688
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
dc.publisher.none.fl_str_mv The Royal Society
publisher.none.fl_str_mv The Royal Society
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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