Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Body condition of shorebirds upon arrival at their Siberian breeding grounds

In English

Författare

  • Ingrid Tulp
  • Hans Schekkerman
  • Raymond Klaassen
  • Bruno J. Ens
  • G. Henk Visser

Summary, in English

Arctic breeding shorebirds carry substantial body stores on their long-distance migrations from their non-breeding grounds. Upon arrival at the breeding area the remains of these stores can be used for egg formation, insurance against poor feeding conditions or rebuilding organs. We quantified body condition (body mass, total body water, lean body mass and fat mass estimated using the deuterium dilution method) in seven shorebird species caught upon arrival in the Siberian Arctic. Arrival condition was compared with incubation condition in a subset of species. After correction for structural size, body mass was significantly lower at arrival than during incubation in most of the species (but 3-18% above lean mass). Fat index (fat mass/lean mass) varied between 5.1 and 13.2%. Fat stores were estimated to enable survival for 0.6 days for the smallest and 2.5 days for the largest species. We discuss possible functions of arrival stores: insurance, egg-formation or rebuilding organs.

Publiceringsår

2009

Språk

Engelska

Sidor

481-491

Publikation/Tidskrift/Serie

Polar Biology

Volym

32

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Biological Sciences

Nyckelord

  • Lean mass
  • Fat
  • Body mass
  • Shorebirds
  • Arctic
  • Taimyr

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1432-2056