Skip to main content
padlock icon - secure page this page is secure

Stable isotope signatures reveal cryptic differences in diet of Sociable Weavers

Buy Article:

$25.00 + tax (Refund Policy)

Foraging habits of animals are a critical component of their ecology; however, estimates of feeding that rely solely on observation may not detect all of the factors that affect foraging decisions. Importantly, few studies have examined the influence of sociality on dietary regimes in avian species. The stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) were used to assess the foraging habits of Sociable Weavers (Philetairus socius) at a field site in Namibia. Sociable Weavers were sampled from three different nests, at two different time points over the course of a year. We found significant differences in stable isotope composition between nests, and subsequently compared the isotopic profile to the isotopic profile of the preferred food item. Isotopic structuring between nests suggests that sociality may constrain foraging decisions and could be a common feature of species of animals where foraging groups are temporally stable. We also found that larger nests are more isotopically similar to the preferred foraging source, and thus larger populations may be supported by nearby foraging resources.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: CARBON ISOTOPES; DIET; NITROGEN ISOTOPES; SOCIABLE WEAVER; SOCIAL FORAGING

Document Type: Research Article

Publication date: 01 June 2015

More about this publication?
  • Avian Biology Research provides a forum for the publication of research in every field of ornithology. It covers all aspects of pure and applied ornithology for wild or captive species as well as research that does not readily fit within the publication objectives of other ornithological journals. By considering a wide range of research fields for publication, Avian Biology Research provides a forum for people working in every field of ornithology. The journal also includes sections on avian news, conference diary and book reviews.

    Editor-in-Chief: Charles Deeming Editors: Tom Pike; Dale Sandercock; Claudia Wascher; Josh Firth; David Wilkinson; Jim Reynolds Production Editor: Claire Pike

    Cover image: Satyr Tragopan (Tragopan satyra). Credit: jurra8/Shutterstock.com.

  • Editorial Board
  • Subscribe to this Title
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more