CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Emu   
Emu
http://www.birdlife.org.au
  A Journal of BirdLife Australia
 
blank image Search
 
blank image blank image
blank image
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Board
Contacts
Content
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Research Fronts
Rowley Reviews
Sample Issue
For Authors
General Information
Notice to Authors
Submit Article
For Referees
Referee Guidelines
Review Article
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates

red arrow Complete Archive
blank image
With the complete digital archive of Emu now online, we have selected some of the most interesting and significant papers for readers to access freely.

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with BirdLife
blank image
facebook TwitterIcon LinkedIn

red arrow Connect with CP
blank image
facebook twitter youtube

 

 Just Accepted

This article has been peer reviewed and accepted for publication. It is in production and has not been edited, so may differ from the final published form.


Distribution of tree hollows and hollow preferences by parrots in an urban landscape.

Adrian Davis, Richard Major, Charlotte Taylor

Abstract

The number of hollow-bearing trees, and associated hollows contained within urban habitats, continues to decline as cities expand. Remaining hollows may be unsuitable for individual parrot species that have specific preferences or requirements for certain characteristics of tree hollows. To determine the distribution of hollow-bearing trees and tree hollows in Sydney, Australia, we surveyed 264 sites within parks, streetscapes, golf courses, remnant vegetation and continuous forest. To determine whether particular species of parrot were associated with specific hollow characteristics, motion-activated video cameras were installed to monitor usage of hollows in remnant vegetation and continuous forest. The number of both hollows and of hollow-bearing trees varied significantly amongst habitats, with all urban habitats having significantly fewer hollow-bearing trees than did continuous forest. There was no significant difference in the number of hollows contained within remnant vegetation and continuous forest. Hollow visitation by the Rainbow Lorikeet, Sulphur-crested Cockatoo and the Australian King Parrot was significantly associated with particular hollow characteristics, most importantly hollow type, hollow-orientation and tree species. Knowledge of the distribution of hollow-bearing trees throughout landscapes, as well as the characteristics of hollows that are associated with particular parrot species, is crucial to conserve populations of hollow dependent bird species in urban areas.

MU13065  Accepted 03 February 2014
 
© CSIRO 2014



Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2014