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- Title
Increased nest predation in a declining and threatened Temminck's Stint Calidris temminckii population.
- Authors
Rönkä, Antti; Koivula, Kari; Ojanen, Mikko; Pakanen, Veli-Matti; Pohjoismäki, Marko; Rannikko, Kari; Rauhala, Pentti
- 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.
- Subjects
BABY birds; ANIMAL habitations; NESTS; PREDATORY animals; PREDATION; EMBRYOLOGY; HABITATS; WILDLIFE depredation; WILDLIFE management
- Publication
Ibis, 2006, Vol 148, Issue 1, p55
- ISSN
0019-1019
- Publication type
Article
- DOI
10.1111/j.1474-919X.2006.00481.x