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Nest-site selection and predation in Savi’s Warblers, Locustella luscinioides.

Författare:
Publiceringsår: 2008
Språk: Engelska
Sidor: 171-176
Publikation/Tidskrift/Serie: Bird Study
Volym: 53
Nummer: 2
Dokumenttyp: Artikel
Förlag: Taylor & Francis Informa Ltd

Sammanfattning

Capsule: Savi’s Warblers preferred sites dominated by high and dense Juncus and Rubus with thick litter, and avoided pure reeds; predation was higher in sites with less litter.
Aim: To describe nest-site selection and identify which habitat and nest features influence predation risk.
Methods: Comparisons were made between habitat characteristics measured at nest-sites and random points, and between predated and successful nests.
Results: Total vegetation cover, litter thickness, habitat type, undergrowth height and undergrowth cover, which were higher or denser at nest-sites, were the most important variables influencing the distribution of Savi’s Warbler nests. Nests were most often predated in sites with low litter thickness.
Conclusion: Savi’s Warblers are dependent on the presence of dense low vegetation and litter for nesting, which should be maintained close to or within reed-beds for their benefit.

Disputation

Nyckelord

  • Biology and Life Sciences

Övrigt

  • FCT (Portuguese Science and Technology Foundation)
Published
Yes
  • Molecular Ecology and Evolution Lab
  • ISSN: 0006-3657 (Paper)
  • ISSN: 1944-6705 (Online)

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