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Austral Ecology - 2024 - Barnes - Distribution habitat associations and status of the Carpentarian Pseudantechinus 4.40 MB
Published VersionCC BY-NC-ND V4.0, Open Access
Journal article
Distribution, habitat associations and status of the Carpentarian Pseudantechinus ( Pseudantechinus mimulus , Dasyuridae)
Austral Ecology, Vol.49(7), pp.1-23
2024
Appears in UniSC Supported Open Access Outputs
Abstract
The Carpentarian Pseudantechinus (Pseudantechinus mimulus, Dasyuridae) is a little-known, saxicolous dasyurid marsupial from the Mount Isa Inlier bioregion in Queensland (QLD) and the Gulf Coastal bioregion in the Northern Territory (NT), Australia. A paucity of targeted survey effort across broad swathes of potentially suitable habitat means that the species' distribution and habitat associations are uncertain. This study aimed to (1) refine the contemporary distribution of P. mimulus, (2) determine the landscape and floristic variables that may predict P. mimulus presence, and (3) assess the current conservation status of P. mimulus. We conducted camera trap surveys covering 631 camera stations at 227 independent sites over 4 years for a total of 28 767 trap-nights throughout QLD and NT in known and predicted suitable habitat. Stepwise generalized linear models were used to test the effect of landscape and floristic predictors on P. mimulus presence. The species' contemporary distribution was assessed using a MAXENT species distribution model. We collated a database of 292 records of P. mimulus, including 111 recorded during this study, extending the species' known range in QLD. The proposed holotype location of the Mittiebah Range was surveyed twice during this study but P. mimulus was not recorded. Pseudantechinus mimulus had the highest probability of presence on most non-northerly aspects on metamorphic landforms. Eleven plant taxa had a significant effect on P. mimulus presence. This study provides new evidence for landscape and floristic factors that help predict the presence of P. mimulus. Our results indicate the possibility of two disjunct populations, but large swathes of potential habitat still require additional effort to determine the species' true distribution. Our estimate for area of occupancy partially satisfies a threatened species listing; however, more focused research on population dynamics, trends in habitat quality, and landscape-scale threats is necessary.
Details
- Title
- Distribution, habitat associations and status of the Carpentarian Pseudantechinus ( Pseudantechinus mimulus , Dasyuridae)
- Authors
- Jarrad C. Barnes - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringChristofer J. Clemente - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringElizabeth A. Brunton - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringScott E. Burnett - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
- Publication details
- Austral Ecology, Vol.49(7), pp.1-23
- Publisher
- John Wiley & Sons, Inc.
- Date published
- 2024
- DOI
- 10.1111/aec.13557
- ISSN
- 1442-9993; 1442-9985
- Copyright note
- © 2024 The Author(s). Austral Ecology published by John Wiley & Sons Australia, Ltd on behalf of Ecological Society of Australia. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
- Data Availability
- The data that support this study are not made publicly available but may be shared upon reasonable request to the corresponding author.
- Grant note
- Funding and in-kind support was provided by EcoSmart Ecology, MMG Ltd. and Chinova Resources Pty. Ltd.
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 991048398702621
- Output Type
- Journal article
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