Constitutive immune function is not associated with fuel stores in spring migrating passerine birds
Shivani Ronanki,
Arne Hegemann,
Cas Eikenaar
Abstract:Migratory birds may either upregulate their immune system during migration as they might encounter novel pathogens or downregulate their immune system as a consequence of trade‐offs with the resource costs of migration. Support for the latter comes not least from a study that reports a positive correlation in autumn migrating birds between fuel stores and parameters of innate and acquired immune function, that is, energy‐exhausted migrants appear to have lowered immune function. However, to our knowledge, no s… Show more
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