Stopover departure decisions in autumn are not associated with constitutive immune function in Northern Wheatears Oenanthe oenanthe

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Stopover departure decisions in autumn are not associated with constitutive immune function in Northern Wheatears Oenanthe oenanthe. / Eikenaar, Cas; Packmor, Florian; Schmaljohann, Heiko; Hegemann, Arne.

I: Journal of Ornithology, Vol. 160, Nr. 3, 2019, s. 813-817.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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T1 - Stopover departure decisions in autumn are not associated with constitutive immune function in Northern Wheatears Oenanthe oenanthe

AU - Eikenaar, Cas

AU - Packmor, Florian

AU - Schmaljohann, Heiko

AU - Hegemann, Arne

PY - 2019

Y1 - 2019

N2 - Stopover periods in between migratory flights determine the speed of migration and as such may affect birds’ fitness. The decision to leave a stopover site is affected by, for example, energy stores and weather conditions. We investigated whether immunological state influences autumn stopover departure decisions in Northern Wheatear (Oenanthe oenanthe), a nocturnal long-distance migrant. We measured three parameters of constitutive immune function: microbial killing capacity, haptoglobin, and total immunoglobulins. None of them explained variation in departure probability, minimum stopover duration, or departure time within the night. Thus, we did not find an effect of the birds’ immunological state on stopover departure decisions.

AB - Stopover periods in between migratory flights determine the speed of migration and as such may affect birds’ fitness. The decision to leave a stopover site is affected by, for example, energy stores and weather conditions. We investigated whether immunological state influences autumn stopover departure decisions in Northern Wheatear (Oenanthe oenanthe), a nocturnal long-distance migrant. We measured three parameters of constitutive immune function: microbial killing capacity, haptoglobin, and total immunoglobulins. None of them explained variation in departure probability, minimum stopover duration, or departure time within the night. Thus, we did not find an effect of the birds’ immunological state on stopover departure decisions.

KW - Departure cues

KW - Fitness

KW - Immunity

KW - Migration

KW - Stopover

KW - Telemetry

U2 - 10.1007/s10336-019-01665-8

DO - 10.1007/s10336-019-01665-8

M3 - Article

VL - 160

SP - 813

EP - 817

JO - Journal of Ornithology

T2 - Journal of Ornithology

JF - Journal of Ornithology

SN - 2193-7192

IS - 3

ER -