Nest site selection, management and breeding success of crested tits Parus Cristatus at Abernethy forest, Strathspey

Denny, R.E. and Summers, R.W. (1996) Nest site selection, management and breeding success of crested tits Parus Cristatus at Abernethy forest, Strathspey. Bird Study, 43 . pp. 371-379. ISSN 0006-3657. (The full text of this publication is not available from this repository)

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Abstract

Crested Tits at Abernethy Forest RSPB nature reserve selected broad stumps and dead trees of Scots Pine in which they excavated nest chambers in the rotten sapwood of the trunks. Given the size requirements for nest chambers, only frees with a diameter greater than about 20 cm are suitable, as sapwood depth is correlated with trunk diameter. There was avoidance of the south-west quadrant of dead trees and stumps, despite the greater depth of soft sapwood on the west side of dead trees. Prevailing weather or sunlight may affect aspect selection. Nests occurred in old open forest and plantations where the density of the surrounding frees averaged 290 per ha. Mean clutch size was 5.5 eggs and nest success was 50%. The provision of potential nest sites by cutting 'high' stumps has shown that it takes about nine years for the sapwood to rot sufficiently for excavation. However, none has been used to date, perhaps because of the small trunk diameters. It is recommended that future stumps should be cut at least 2 m from the ground and have a trunk diameter of over 30 cm.

Item Type: Article
Additional information: Part: Part 3
Uncontrolled keywords: Parus; Dendrocopus; Hylocomium; Oryctolagus
Subjects: S Agriculture
S Agriculture > SF Animal culture
Divisions: Faculties > Social Sciences > School of Anthropology and Conservation > DICE (Durrell Institute of Conservation and Ecology)
Depositing User: M.A. Ziai
Date Deposited: 29 Jun 2011 09:22
Last Modified: 29 Jun 2011 09:22
Resource URI: http://kar.kent.ac.uk/id/eprint/18908 (The current URI for this page, for reference purposes)
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