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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Heligoland Bird Observatory
  • Bangor University
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Zoologi

Nyckelord

Originalspråkengelska
Antal sidor5
TidskriftJournal of Ornithology
StatusE-pub ahead of print - 2019 apr 13
PublikationskategoriForskning
Peer review utfördJa