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RESEARCH ARTICLE
Contents Vol 30(1)

Movement of Carnaby’s Cockatoo (Zanda latirostris) across different agricultural regions in Western Australia

Sam Rycken https://orcid.org/0000-0002-0973-2641 A * , Kristin S Warren https://orcid.org/0000-0002-9328-2013 B , Lian Yeap https://orcid.org/0000-0002-9419-5333 B , Bethany Jackson https://orcid.org/0000-0002-8622-8035 A , Peter R. Mawson https://orcid.org/0000-0001-6729-2966 C D , Rick Dawson E and Jill M. Shephard https://orcid.org/0000-0002-4418-9891 B
+ Author Affiliations
- Author Affiliations

A College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA 6150, Australia.

B Centre for Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute, Murdoch University, Murdoch, WA 6150, Australia.

C Perth Zoo, Department of Biodiversity, Conservation and Attractions, South Perth, WA 6151, Australia.

D School of Biological Sciences, University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia.

E Australian Black Cockatoo Specialists, Perth, WA 6169, Australia.

* Correspondence to: sam.rycken@birdlife.org.au

Handling Editor: Mike Calver

Pacific Conservation Biology 30, PC23015 https://doi.org/10.1071/PC23015
Submitted: 17 April 2023  Accepted: 9 October 2023  Published: 31 October 2023

© 2024 The Author(s) (or their employer(s)). Published by CSIRO Publishing

Abstract

Context

Carnaby’s cockatoos in Western Australia are experiencing ongoing population declines. Despite being highly mobile and adaptable, this endangered species has been impacted by fragmentation of its habitat, with an ongoing need for research on its movements in regional areas across its range to gain an understanding of habitat requirements, and to inform conservation plans.

Aims

This study aimed to determine whether regional differences in movement (distances travelled, revisitations and home range) exist for foraging and roosting behaviour for this species.

Methods

Movement analysis of satellite-tagged Carnaby’s cockatoos (n = 11) across three agricultural regions was conducted.

Key results

When comparing distances between roosts and daily foraging behaviour, no significant differences were found between regions (P ≥ 0.05). Resident home ranges (home ranges in areas of resident daily movement) of flocks were much larger in the Esperance region, however, showing differences in movement patterns between regions.

Conclusions

Because flocks were similar in size (n = ±300) between regions and used a similar amount of native vegetation for foraging (±20%), we concluded that movement may have been influenced by the spatial separation of patches of native vegetation. In addition, key foraging habitat often occurred within patches of non-native foraging species.

Implications

The information derived from this research has proven valuable in assessing the use of native vegetation in the landscape, identifying key habitat and determining daily and seasonal movement patterns. In addition, the importance of non-native food sources must be recognised and protection of native and non-native food sources must play a critical role in the species’ conservation management.

Keywords: Carnaby’s cockatoo, conservation management, endangered species, GPS, habitat fragmentation, movement ecology, regional, satellite telemetry.

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