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Ontogeny of leukocyte profiles in a wild altricial passerine [dataset]

AuthorsMuriel, Jaime ; Vida, Carmen; Gil, Diego ; Pérez-Rodríguez, Lorenzo
KeywordsAge-specific pattern
Cell-mediated immunity
Daily rhythm
Leukocyte count
Nestling development
Sturnus unicolor
Issue Date14-Sep-2020
CitationMuriel, Jaime; Vida, Carmen; Gil, Diego; Pérez-Rodríguez, Lorenzo; 2020; Ontogeny of leukocyte profiles in a wild altricial passerine [dataset]; DIGITAL.CSIC; http://dx.doi.org/10.20350/digitalCSIC/12613
AbstractEcophysiological studies have highlighted the relevance of the avian immune system in individual fitness prospects in the wild. However, studies on the ontogeny of avian immunity are scarce. We analyse age-related changes in the cellular constitutive immunity throughout nestling development, as well as its relationship with sex and brood size. We found that cellular constitutive immunity could be affected by age, sex, brood size or daily rhythm. Early-stage nestlings relied more on cells of the innate immunity rather than on cells linked to the adaptive immune system. Cellular immunity may not be fully mature in fledglings, as reflected by differences in phagocytic cell counts with regard to adults. Beyond the age-dependent effects, agranulocyte cell counts were affected by sibling competition while granulocyte cell counts showed a daily rhythm. We also show that the heterophil to lymphocyte ratio was negatively related to body weight when nestlings become more independent. Our study contributes knowledge to the fields of developmental immunology and ecological immunology based on essential components of the cellular immune system.
DescriptionThis study was conducted during three consecutive breeding seasons (from 2009 to 2011)
ReferencesMuriel J, Vida C, Gil D & Pérez-Rodríguez L (2020). Ontogeny of leukocyte profiles in a wild altricial passerine. Journal of Comparative Physiology -B- Bioch Syst and Envir Physi
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