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ECOLOGICAL AND PHYSIOLOGICAL VARIANCE IN T-CELL MEDIATED IMMUNE RESPONSE IN CORY'S SHEARWATERS

Forero, Manuela G ; González-Solis, Jacob ; Igual, José M ; Hobson, Keith A ; Ruíz, Xavier ; Viscor, Ginés

The Condor (Los Angeles, Calif.), 2006-11, Vol.108 (4), p.865-876 [Periódico revisado por pares]

810 East 10th Street, Lawrence, KS 66044‐8897: the Cooper Ornithological Society

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  • Título:
    ECOLOGICAL AND PHYSIOLOGICAL VARIANCE IN T-CELL MEDIATED IMMUNE RESPONSE IN CORY'S SHEARWATERS
  • Autor: Forero, Manuela G ; González-Solis, Jacob ; Igual, José M ; Hobson, Keith A ; Ruíz, Xavier ; Viscor, Ginés
  • Assuntos: Animal behavior ; Animal physiology ; Birds ; Blood ; Body condition ; Breeding ; breeding density ; Breeding of animals ; Calonectris diomedea ; Chicks ; Cèl·lules T ; Ecologia marina ; Ecology ; Feature ; Female animals ; Fisiologia animal ; Immune response ; immunocompetence ; Male animals ; Marine ; Marine ecology ; Ocells marins ; Ornithology ; physiological parameters ; Resposta immunitària ; Sea birds ; T cell receptors ; T cells ; T lymphocytes
  • É parte de: The Condor (Los Angeles, Calif.), 2006-11, Vol.108 (4), p.865-876
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
  • Descrição: T-cell mediated immune response (CMI) hasbeen widely studied in relation to individual andfitness components in birds. However, few studieshave simultaneously examined individual and socialfactors and habitat-mediated variance in theimmunity of chicks and adults from the samepopulation and in the same breeding season. Weinvestigated ecological and physiological variancein CMI of male and female nestlings and adults in abreeding population of Cory's Shearwaters(Calonectrisdiomedea) in theMediterranean Sea. Explanatory variables includedindividual traits (body condition, carbon andnitrogen stable isotope ratios, plasma totalproteins, triglycerides, uric acid, osmolarity,β-hydroxy-butyrate, erythrocyte meancorpuscular diameter, hematocrit, andhemoglobin) and burrow traits(temperature, isolation, and physicalstructure). During incubation, immune responseof adult males was significantly greater than thatof females. Nestlings exhibited a lower immuneresponse than adults. Ecological and physiologicalfactors affecting immune response differed betweenadults and nestlings. General linear models showedthat immune response in adult males was positivelyassociated with burrow isolation, suggesting thatmales breeding at higher densities suffer immunesystem suppression. In contrast, immune response inchicks was positively associated with bodycondition and plasma triglyceride levels.Therefore, adult immune response appears to beassociated with social stress, whereas a trade-offbetween immune function and fasting capability mayexist for nestlings. Our results, and those fromprevious studies, provide support for anasymmetrical influence of ecological andphysiological factors on the health of differentage and sex groups within a population, and for theimportance of simultaneously considering individualand population characteristics in intraspecificstudies of immune response.
  • Editor: 810 East 10th Street, Lawrence, KS 66044‐8897: the Cooper Ornithological Society
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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