Urbanisation and the ecology of powerful owls ninox strenua in outer Melbourne, Victoria

Cooke, Raylene, Wallis, Robert and Webster, Alan 2002, Urbanisation and the ecology of powerful owls ninox strenua in outer Melbourne, VictoriaEcology and conservation of owls, CSIRO Publishing, Collingwood, Vic., pp.100-106.

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Title Urbanisation and the ecology of powerful owls ninox strenua in outer Melbourne, Victoria
Author(s) Cooke, RayleneORCID iD for Cooke, Raylene orcid.org/0000-0002-8843-7113
Wallis, Robert
Webster, Alan
Title of book Ecology and conservation of owls
Publication date 2002
Chapter number 10
Total chapters 32
Start page 100
End page 106
Total pages 7
Publisher CSIRO Publishing
Place of Publication Collingwood, Vic.
Summary Historically, the Powerful Owl (Ninox strenua) has been seen as a southeastern Australian species restricted to, or most numerous in, dense gullies of tall open forests in hilly or mountainous areas of the coast and Great Divide. However, recent research has revealed that Powerful Owls may breed numerously and successfully in a wider range of habitats than previously believed, including the forests and woodlands within the metropolitan areas of some major cities.Here we report on the breeding of a number of pairs of Powerful Owls in the Yarra Valley, Victoria. Study sites ranged from relatively undisturbed, wet sclerophyll forest 80 km from central Melbourne, through dry sclerophyll, eucalypt-dominated open forest with some disturbance, to a highly disturbed urban parkland only 18 km from central Melbourne. We found that Powerful Owls breed successfully in some urban areas, but are limited in the amount of human disturbance they can tolerate near their nesting hollow. In the most heavily utilized section of the urban parkland, all breeding attempts were unsuccessful and in one year the young were apparently eaten by one of the parents. This followed construction of a timber boardwalk under the nest tree during the breeding season. The Powerful Owls subsequently moved to a more secluded nesting hollow and raised two young. Recommendations for management of Powerful Owls in urban areas are discussed in the context
of these results.
ISBN 0643067949
Language eng
Field of Research 050211 Wildlife and Habitat Management
HERDC Research category B1 Book chapter
Copyright notice ©2002, CSIRO Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30000493

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