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Variable inter-annual relationships between T-cell mediated inmmunity and individual traits in white stok

Authors: Jovani, Roger; Tella, José Luis; Blanco, Guillermo; Bertellotti, Néstor Marcelo;

Variable inter-annual relationships between T-cell mediated inmmunity and individual traits in white stok

Abstract

Objetivos: La técnica de la Fithohemaglutinina (PHA) se ha convertido en un método común en el estudio de las implicaciones ecológicas y evolutivas del sistema inmune celular (CMI) en las aves, y se han identificado varias características reproductivas y de los individuos relacionadas con el CMI. Sin embargo, no sabemos cómo de consistentes son estas relaciones encontradas con el CMI en una escala temporal. Este punto fue evaluado estudiando el CMI de los pollos de Cigüeña Blanca Ciconia ciconia durante cuatro años.-- Localidad: Dehesa de Abajo, Puebla del Río, Sevilla, España.-- Métodos: Se midió el CMI de los pollos con la técnica de la PHA en 1999, 2001, 2002 y 2003, así como siete variables de cada individuo: fecha de puesta, tamaño de puesta, tamaño de pollada, sexo, edad, jerarquía dentro de la pollada, y condición física.-- Resultados: La relación entre el CMI y los caracteres individuales a través de los años dependió de la variable estudiada. Algunas variables, cuando estuvieron relacionadas significativamente con el CMI, mostraron relaciones consistentes (e.g. condición física), mientras que otras no mostraron ninguna relación (e.g. edad) o incluso correlaciones opuestas según los años (fecha de puesta).-- Conclusiones: Estos resultados ponen de manifiesto la necesidad de incluir la escala temporal en aspectos de ecología immunológica para un mejor entendimiento de las relaciones entre el CMI y los caracteres individuales.

Aims: The PHA skin-testing technique has become a widespread way of studying the ecological and evolutionary implications of T-cell mediated immunity (CMI) in birds. Several breeding and individual traits have been found to be related to CMI. However, it is not known how consistent these relationships are over the years. A four year study was conducted on the CMI response of White Stork Ciconia ciconia nestlings to evaluate this point.-- Location: Dehesa de Abajo, Puebla del Río, Sevilla, España.-- Methods: T-cell mediated immunity was measured by the PHA skin-testing technique in 1999, 2001, 2002, and 2003, as well as seven parental or individual variables for each nestling: laying date, clutch size, brood size, sex, age, brood hierarchy, and body condition.-- Results: The relationship between CMI and individual traits over the years depended on the studied variable. Some of them, when significantly related, showed a consistent relationship (e.g. body condition), while others did not have any relationship (e.g. age) or even contrary trends (laying date) depending on the year.-- Conclusions: These results highlight the need of including the temporal scale into ecological immunology for a better understanding of the relationships between CMI and individual traits.

Fil: Bertellotti, Néstor Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina

Fil: Blanco, Guillermo. Universidad de Castilla-La Mancha. Instituto de Investigación en Recursos Cinegéticos; España

Fil: Tella, José Luis. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España

Fil: Jovani, Roger. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España

Countries
Spain, Argentina
Keywords

Pha-Test, Inter-Year Variability, Individual Traits, Caracteres individuales, Sistema Inmune, Ciconia ciconia, Pollos, pollos, Ciconia Ciconia, nestlings, sistema inmune, variación interanual., immune system, Immune system, Caracteres Individuales, PHA-test, Immune System, https://purl.org/becyt/ford/1.6, Variación Interanual, inter-year variability, Nestlings, individual traits, https://purl.org/becyt/ford/1, Individual traits

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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