Deakin University
Browse

File(s) under permanent embargo

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

chapter
posted on 2002-01-01, 00:00 authored by Raylene CookeRaylene Cooke, Robert Wallis, A Webster
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.

History

Title of book

Ecology and conservation of owls

Chapter number

10

Pagination

100 - 106

Publisher

CSIRO Publishing

Place of publication

Collingwood, Vic.

ISBN-13

9780643067943

ISBN-10

0643067949

Language

eng

Publication classification

B1 Book chapter

Copyright notice

2002, CSIRO Publishing

Extent

32

Usage metrics

    Research Publications

    Categories

    No categories selected

    Keywords

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC