期刊
AVIAN BIOLOGY RESEARCH
卷 7, 期 2, 页码 83-90出版社
SAGE PUBLICATIONS LTD
DOI: 10.3184/175815514X13983550506873
关键词
Pine Marten; nest predation; hole-nesting birds; Blue Tit; Great Tit; nest size; nestboxes
资金
- University of Lodz [504/118]
The major aim of this study was to examine the influence of the European Pine Marten (Manes martes) predation on the heights of nests of Blue Tits (Cyanistes caeruleus) and Great Tits (Parus major) in nestboxes of different security levels. To this end we performed a comparison of nest heights before and after introducing an anti-predator device to two size-types of wooden nestboxes set up in a deciduous forest. Blue Tit and Great Tit nest sizes were influenced by the application of plastic entrance tubes as anti-predator devices that elongated a distance between the entrance and the interior of the nestbox. Nests were taller in nestboxes equipped with anti-predator devices regardless of nestbox size. Nests located in smaller nestboxes were destroyed by Martens more frequently than nests built in bigger nest boxes. Most nest functions in cavity-nesting birds, such as filling the excessive cavity space, maintenance of proper humidity, thermal, light and sanitary conditions for eggs and nestlings, improve with nest sizes. Because, in contrast, the risk of nest predation by martens increases with nest size (height within the nestbox), the nest predation constitute a major factor that constrains cavity-nesting birds in constructing tall nests.
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