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Red foxes avoid apex predation without increasing fear

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DOI

  • Eamonn I.F. Wooster, University of Technology Sydney
  • ,
  • Daniel Ramp, University of Technology Sydney
  • ,
  • Erick J. Lundgren
  • Adam J. O'Neill, Dingo for Biodiversity Project
  • ,
  • Arian D. Wallach, University of Technology Sydney

Apex predators structure ecosystems by hunting mesopredators and herbivores. These trophic cascades are driven not only by the number of animals they kill, but also by how prey alter their behaviors to reduce risk. The different levels of risk navigated by prey has been likened to a "landscape of fear."In Australia, dingoes are known to suppress red fox populations, driving a trophic cascade. However, most of what we know of this relationship comes from circumstances where predators are persecuted, which can affect their social and trophic interactions. Utilizing camera traps, we monitored fox behavior when accessing key resource points used by territorial dingoes, in a region where both predators are protected. We predicted that foxes would avoid and be more cautious in areas of high dingo activity. Indeed, foxes avoided directly encountering dingoes. However, contrary to our expectations, foxes were not more cautious or vigilant where dingo activity was high. In fact, fox activity and scent-marking rates increased where dingo scent-marking was concentrated. Further, foxes were increasingly confident with increasing levels of conspecific activity. Our results suggest that responses to the threat of predation are more complex than fear alone. In socially stable conditions, it is possible that prey may develop knowledge of their predators, facilitating avoidance, and reducing fear.

Original languageEnglish
JournalBehavioral Ecology
Volume32
Issue5
Pages (from-to)895-902
Number of pages8
ISSN1045-2249
DOIs
Publication statusPublished - Sep 2021

Bibliographical note

Publisher Copyright:
© 2021 The Author(s) 2021. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

    Research areas

  • behavioral ecology, introduced species, landscape of fear, predator interactions, trophic cascades

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