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dc.contributor.author
Palacios, María Gabriela
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dc.contributor.author
Bronikowski, A. M.
dc.date.available
2018-04-25T19:17:50Z
dc.date.issued
2017-12
dc.identifier.citation
Palacios, María Gabriela; Bronikowski, A. M.; Immune variation during pregnancy suggests immune component-specific costs of reproduction in a viviparous snake with disparate life-history strategies.; Wiley-liss, Div John Wiley & Sons Inc; Journal of Experimental Zoology Part A: Ecological Genetics and Physiology; 327; 8; 12-2017; 1-10
dc.identifier.issn
1932-5223
dc.identifier.uri
http://hdl.handle.net/11336/43494
dc.description.abstract
Growing evidence suggests the existence of trade-offs between immune function and reproduction in diverse taxa. Among vertebrates, however, there is still a taxonomic bias toward studies in endotherms, particularly birds. We tested the hypothesis that reproduction entails immune related costs in the viviparous garter snake, Thamnophis elegans, from populations that exhibit two life-history strategies, termed ecotypes, with contrasting paces of life. Between the two ecotypes, we predicted lower immune function in gravid than non-gravid females of both strategies, but with relatively larger immunity costs in the ecotype that generally invests more in current reproduction. Across individuals, we predicted greater immune costs for females investing more in the present specific reproductive event (i.e., higher fecundity) irrespective of their ecotype. We assessed leukocyte profiles and measured bactericidal capacity of plasma (innate immunity) and T- and B-lymphocyte proliferation (adaptive immunity) in gravid and non-gravid females in their natural habitats. We also collected data on reproductive output from these same gravid females brought into captivity. Gravid females of both ecotypes showed lower T-lymphocyte proliferation responses to concanavalin A than non-gravid females, but no differential costs were observed between ecotypes. The remaining immune variables did not vary between gravid and non-gravid females. Among gravid females within each ecotype, those with larger reproductive output showed lower total leukocyte counts, suggesting a fecundity-dependent trade-off. Our<br />study contributes to the comparative ecoimmunology of vertebrates by highlighting the immune component-specificity of trade-offs between reproduction and immune function and showing that costs can be fecundity-dependent in some, but not all cases.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley-liss, Div John Wiley & Sons Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Adaptive Immunity
dc.subject
Bactericidal Capacity
dc.subject
Ecoimmunology
dc.subject
Innate Immunity
dc.subject
Lymphocyte Proliferation
dc.subject
Trade-Off
dc.subject
Thamnophis
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Immune variation during pregnancy suggests immune component-specific costs of reproduction in a viviparous snake with disparate life-history strategies.
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-05T18:25:16Z
dc.journal.volume
327
dc.journal.number
8
dc.journal.pagination
1-10
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
New York
dc.description.fil
Fil: Palacios, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Iowa; Estados Unidos
dc.description.fil
Fil: Bronikowski, A. M.. University of Iowa; Estados Unidos
dc.journal.title
Journal of Experimental Zoology Part A: Ecological Genetics and Physiology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1002/jez.2137
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jez.2137
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