Stuck in the mud: Persistent failure of ‘the science’ to provide reliable information on the ecological roles of Australian dingoes
Article
Castle, Geoff, Kennedy, Malcolm S. and Allen, Benjamin L.. 2023. "Stuck in the mud: Persistent failure of ‘the science’ to provide reliable information on the ecological roles of Australian dingoes." Biological Conservation. 285. https://doi.org/10.1016/j.biocon.2023.110234
Article Title | Stuck in the mud: Persistent failure of ‘the science’ to provide reliable information on the ecological roles of Australian dingoes |
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ERA Journal ID | 3211 |
Article Category | Article |
Authors | Castle, Geoff, Kennedy, Malcolm S. and Allen, Benjamin L. |
Journal Title | Biological Conservation |
Journal Citation | 285 |
Article Number | 110234 |
Number of Pages | 24 |
Year | 2023 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0006-3207 |
1873-2917 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biocon.2023.110234 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S000632072300335X |
Abstract | Apex predators are believed to play important roles in maintaining the structure and function of ecological systems, but actual evidence for mesopredator releases and trophic cascades in terrestrial systems is mixed and equivocal, largely due to the systemic and continued use of weak-inference or correlative study designs to investigate these hypothesised causal processes. Here we critically review the experimental designs of empirical studies examining relationships between dingoes and mesopredators in Australian ecosystems. We found that 83 % (30 out of 36) of recent study designs lacked one or more of the essential experimental design elements needed to assess causal relationships (such as experimental treatments and controls, treatment replication, and/or treatment randomisation), demonstrating that the inferential strength or reliability of ‘the science’ on this subject remains weak and equivocal. Only five studies published in the last decade (N = 36), and eight in total since 1993 (or 11 %, N = 76), were capable of assessing dingoes' potential causal roles in mesopredator release; and all eight studies consistently demonstrated that dingoes do not supress mesopredators or initiate trophic cascades through mesopredator release effects at a population level, independent of ecological context. Thus, there is a demonstrable absence of evidence and evidence of absence for dingo suppression of mesopredators in Australia. We encourage large carnivore conservation managers and policymakers to base their decisions on the strongest available science. In this way, researchers and managers will have the best chance of conserving these important and valuable species into the future. © 2023 The Authors |
Keywords | Appeal to authority; Journal impact factor ; Mesopredator release ; Scientific evidence ; Scientific method ; Strong inference |
ANZSRC Field of Research 2020 | 310901. Animal behaviour |
Byline Affiliations | Institute for Life Sciences and the Environment |
Department of Agriculture and Fisheries, Queensland | |
Institute for Life Sciences and the Environment | |
Nelson Mandela University, South Africa |
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