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Reuse of nesting scrapes by Kentish Plovers

AuthorsAmat, Juan A. ; Fraga, R.M.; Arroyo, Gonzalo M.
Issue Date1999
PublisherCooper Ornithological Society
CitationCondor 101: 157- 159 (1999)
AbstractWe studied reuse of nesting scrapes within breeding seasons by Kentish Plovers (Charadrius alexandrinus) in an inland lake of southern Spain over six years. Overall, 5.6% of original nests were reused at least once. We tested whether nest reuse is adaptive, but found no differences in breeding success between those pairs that reused nests and those that did not. We also tested whether nest reuse should be more frequent when scrapes are difficult to excavate than when it is easier to excavate them, and found that nests on hard substrates were more frequently reused than nests on soft substrates, and that nest reuse was more frequent in the second half of the season, when the nesting substrate is harder, than in the first half of the season. This suggests that nest reuse may save Kentish Plovers some energy.
Identifiersissn: 0010-5422
Appears in Collections:(EBD) Artículos
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