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

Neto, Julio (författare): Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science

(creator_code:org_t)

2010-03-29
2008
Engelska.
Ingår i: Bird Study. - : Informa UK Limited. - 0006-3657 .- 1944-6705. ; 53:2, s. 171-176

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Abstract Ämnesord

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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.

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