Conserving the Pilbara leaf-nosed bat: directions for future research and management

Holly S. Bradley; Kyle N. Armstrong; Robert D. Bullen; Ryan Ellis; Chris G. Knuckey; Kym Ottewell; Scott Reiffer; Ruchira Somaweera; Linette Umbrello; Stephen van Leeuwen

doi:10.1071/PC23031

REVIEW (Open Access)

Previous Contents Vol 30(2)

Conserving the Pilbara leaf-nosed bat: directions for future research and management

Holly S. Bradley

^A ^* , Kyle N. Armstrong ^B , Robert D. Bullen ^C , Ryan Ellis ^D , Chris G. Knuckey ^D , Kym Ottewell ^E , Scott Reiffer ^F , Ruchira Somaweera ^G , Linette Umbrello ^E and Stephen van Leeuwen ^A

+ Author Affiliations

- Author Affiliations

^A School of Molecular and Life Sciences, Curtin University, Kent Street, Bentley, Perth, WA 6102, Australia.

^B School of Biological Sciences, University of Adelaide, North Terrace, Adelaide, SA 5005, Australia.

^C Bat Call WA, 43 Murray Drive, Hillarys, WA 6025, Australia.

^D Biologic Environmental Survey, 24–26 Wickham Street, East Perth, WA 6004, Australia.

^E Biodiversity and Conservation Science, Department of Biodiversity, Conservation and Attractions, Kensington, WA 6152, Australia.

^F Rio Tinto, Central Park, Level 24, 152–158 St Georges Terrace, Perth, WA 6000, Australia.

^G Stantec, 226 Adelaide Terrace, Perth, WA 6000, Australia.

^* Correspondence to: h.bradley@curtin.edu.au

Handling Editor: Harriet Mills

Pacific Conservation Biology 30, PC23031 https://doi.org/10.1071/PC23031

Submitted: 21 June 2023 Accepted: 30 January 2024 Published: 26 February 2024

© 2024 The Author(s) (or their employer(s)). Published by CSIRO Publishing. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)

Abstract

The Pilbara leaf-nosed bat (Rhinonicteris aurantia ‘Pilbara form’) is a threatened insectivorous microbat endemic to the Pilbara region of Western Australia. It is at risk of significant population decline, particularly due to habitat loss from mining. To address its key threats, stakeholders from a range of backgrounds collectively listed and prioritised research actions in 2013. This exercise was repeated in 2022 to evaluate and update progress of the research priorities. We conducted a review of scientific and grey literature (2013–2023) to: (1) identify the work undertaken to date that addressed the research priorities identified in the 2013 stakeholder workshop; (2) identify the current knowledge gaps in Pilbara leaf-nosed bat ecology, conservation, and threatening processes; and (3) highlight how these gaps relate to the newly ranked 2022 priority list for both research and management outcomes. We found that the 2013 research priorities were largely unaddressed, with most publications and unpublished industry reports in the review period primarily reporting presence or monitoring data around areas of interest to the resources sector, with minimal focus on the species’ conservation or management directly. Therefore, the knowledge gaps identified in 2013 were still largely relevant in 2022. Further targeted research is required to meet the 2022 priorities and better understand the habitat characteristics, movement ecology, disturbance buffer requirements, and cumulative impacts of mining on Pilbara leaf-nosed bat colonies. Overall, targeted research beyond traditional mining outputs, changes to regulatory procedure, and collaborative, adaptive management, are key to supporting the long-term persistence of Pilbara leaf-nosed bats.

Keywords: cumulative impacts, ecology, management, microbat, mining, Pilbara, Rhinonicteris aurantia, roosts, threatening processes.

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