Monitoring threats to Australian threatened birds: Climate change was the biggest threat in 2020 with minimal progress on its management

Stephen T. Garnett, John C.Z. Woinarski, G. Barry Baker, Alex J. Berryman, Ross Crates, Sarah M. Legge, Amanda Lilleyman, Linda Luck, Ayesha I.T. Tulloch, Simon J. Verdon, Michelle Ward, James E.M. Watson, Kerstin K. Zander, Hayley M. Geyle

Research output: Contribution to journalArticlepeer-review

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Most biodiversity monitoring globally tends to concentrate on trends in species’ populations and ranges rather than on threats and their management. Here we review the estimated impact of threats and the extent to which their management is understood and implemented for all threats to all Australian threatened bird taxa. The assessment reports the situation in 2020 and how this differs from 2010. The most marked finding was that the impact of climate change has increased greatly over the last decade, and now surpasses invasive species as the threat imposing the heaviest threat load. Climate change has driven recent massive population declines from increased temperatures in tropical montane rainforests and from fire. For both direct climate change impacts and fire management, progress in understanding how to relieve the threats has been slow and patchy. Consequently, little effective management has occurred. By comparison, our analysis showed that the single successful campaign to eradicate introduced mammals from Macquarie Island relieved the total threat load on Australian threatened birds by 5%, and more than halved the load on the birds from oceanic islands. Protection or rehabilitation of habitat, particularly on islands, has also delivered measurable benefit as have, in the longer term, controls on longline fishing. Our approach can be used with other taxonomic groups to understand progress in research and management and to allow quantification of potential benefits from proposed actions, such as the national threatened species plan.

Original languageEnglish
Pages (from-to)37-54
Number of pages18
Issue number1
Publication statusPublished - 2024

Bibliographical note

Funding Information:
We wish to acknowledge the many number of people who have contributed to the underlying data for this analysis, particularly the many contributors to the assessments of extinction risk for Garnett and Baker (). Financial support for that project was received from the Australian Bird Environment Fund, BirdLife Australia, Charles Darwin University, Biosis Pty Ltd, Auchmeddan and the Wettenhall Environment Trust. STG would also like to acknowledge the Groove, Greenhouse and Porkin cafes where much of the research behind this paper was undertaken. AITT was supported by an ARC Future Fellowship FT210100655.

Publisher Copyright:
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.


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