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Increased nest predation in a declining and threatened Temminck's Stint Calidris temminckii population.
- Source :
- Ibis; Jan2006, Vol. 148 Issue 1, p55-65, 11p, 4 Charts, 1 Graph, 1 Map
- Publication Year :
- 2006
-
Abstract
- We measured nesting success of the Temminck's Stint Calidris temminckii along the Finnish Bothnian Bay coast during 19 breeding seasons (1983–2001) and conducted a population census (1999–2002). We found 105 pairs, showing a marked decline from the previous survey (170 pairs 1987–95). Of the 424 ‘known-fate’ nests, 47% hatched. Depredation caused 79.9% of the nest losses. Nesting failures increased from 1983–91 to 1992–2001 owing to a rise in nest predation. The proportion of failed nests that failed because of predation rose from 48.9 to 87.7%. When only depredated nests were considered as losses, Mayfield nest survival probability over the incubation period dropped from 69 to 31% (461 nests). This pattern emerged both in man-made and in natural habitats. Survival probability was independent of habitat type (natural vs. man-made). In an experiment involving videotaping of dummy nests, Common Gull Larus canus and Ruddy Turnstone Arenaria interpres were found to be the most important egg predators. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00191019
- Volume :
- 148
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Ibis
- Publication Type :
- Academic Journal
- Accession number :
- 19438851
- Full Text :
- https://doi.org/10.1111/j.1474-919X.2006.00481.x