Antipredator behaviour in semi-feral horses: innate response and the influence of external factors

Abstract Rewilding can play a vital role in safeguarding biodiversity, with the grazing pressure exerted by large ungulates and controlled by their predators being a significant factor, particularly in European contexts. Domestic horses are becoming integral to such ungulates’ biomass, but they may...

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Main Authors: Antoine Bercy, Francisco Ceacero, Martina Komárková
Format: Article
Language:English
Published: Springer 2025-02-01
Series:Animal Cognition
Subjects:
Online Access:https://doi.org/10.1007/s10071-025-01933-6
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author Antoine Bercy
Francisco Ceacero
Martina Komárková
author_facet Antoine Bercy
Francisco Ceacero
Martina Komárková
author_sort Antoine Bercy
collection DOAJ
description Abstract Rewilding can play a vital role in safeguarding biodiversity, with the grazing pressure exerted by large ungulates and controlled by their predators being a significant factor, particularly in European contexts. Domestic horses are becoming integral to such ungulates’ biomass, but they may differ from truly wild species due to their domesticated origin. This raises concerns about whether feral horses retain adequate antipredator behaviours, especially in the presence of expanding, large predators like wolves. The field of antipredator behaviour research is hampered by inconsistent results and a lack of standardisation, and the behaviour of free-ranging horses remains underexplored. To address this gap, we conducted a playback experiment on semi-feral Exmoor ponies (n = 97) in the Czech Republic, exposing them to wolf howls, deer rut calls, and static noise as a control. We assessed alert behaviour and herd grouping while accounting for variables such as herd size, sex, time of day, weather conditions, environment type, presence of other ungulates, and habituation effects. Over 70% of the ponies exhibited alert behaviour in response to both wolf and deer calls. Although the magnitude of responses did not differ significantly between wolf and deer calls, both elicited distinct reactions compared to the control. Most of the studied external factors significantly affected the observed alert responses, highlighting that they must be carefully considered in such studies since these may explain the conflicting results observed in previous studies. The significant behavioural differences in reaction to the sounds indicate that the horses can differentiate them and likely still possess some innate memory, as reported in other ungulates. This is a positive sign towards reintroduction. Future research should carefully consider the validity of the testing environment, habituation effects, and other external factors to ensure robust results.
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spelling doaj-art-7a7602d5e6194ee798b3a07aa6e180462025-02-09T12:47:16ZengSpringerAnimal Cognition1435-94562025-02-012811910.1007/s10071-025-01933-6Antipredator behaviour in semi-feral horses: innate response and the influence of external factorsAntoine Bercy0Francisco Ceacero1Martina Komárková2Faculty of Tropical AgriSciences, Czech University of Life Sciences PragueFaculty of Tropical AgriSciences, Czech University of Life Sciences PragueFaculty of Tropical AgriSciences, Czech University of Life Sciences PragueAbstract Rewilding can play a vital role in safeguarding biodiversity, with the grazing pressure exerted by large ungulates and controlled by their predators being a significant factor, particularly in European contexts. Domestic horses are becoming integral to such ungulates’ biomass, but they may differ from truly wild species due to their domesticated origin. This raises concerns about whether feral horses retain adequate antipredator behaviours, especially in the presence of expanding, large predators like wolves. The field of antipredator behaviour research is hampered by inconsistent results and a lack of standardisation, and the behaviour of free-ranging horses remains underexplored. To address this gap, we conducted a playback experiment on semi-feral Exmoor ponies (n = 97) in the Czech Republic, exposing them to wolf howls, deer rut calls, and static noise as a control. We assessed alert behaviour and herd grouping while accounting for variables such as herd size, sex, time of day, weather conditions, environment type, presence of other ungulates, and habituation effects. Over 70% of the ponies exhibited alert behaviour in response to both wolf and deer calls. Although the magnitude of responses did not differ significantly between wolf and deer calls, both elicited distinct reactions compared to the control. Most of the studied external factors significantly affected the observed alert responses, highlighting that they must be carefully considered in such studies since these may explain the conflicting results observed in previous studies. The significant behavioural differences in reaction to the sounds indicate that the horses can differentiate them and likely still possess some innate memory, as reported in other ungulates. This is a positive sign towards reintroduction. Future research should carefully consider the validity of the testing environment, habituation effects, and other external factors to ensure robust results.https://doi.org/10.1007/s10071-025-01933-6Alert responseAudio-playbackCanidsEquidsPreyWhite sound
spellingShingle Antoine Bercy
Francisco Ceacero
Martina Komárková
Antipredator behaviour in semi-feral horses: innate response and the influence of external factors
Animal Cognition
Alert response
Audio-playback
Canids
Equids
Prey
White sound
title Antipredator behaviour in semi-feral horses: innate response and the influence of external factors
title_full Antipredator behaviour in semi-feral horses: innate response and the influence of external factors
title_fullStr Antipredator behaviour in semi-feral horses: innate response and the influence of external factors
title_full_unstemmed Antipredator behaviour in semi-feral horses: innate response and the influence of external factors
title_short Antipredator behaviour in semi-feral horses: innate response and the influence of external factors
title_sort antipredator behaviour in semi feral horses innate response and the influence of external factors
topic Alert response
Audio-playback
Canids
Equids
Prey
White sound
url https://doi.org/10.1007/s10071-025-01933-6
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AT franciscoceacero antipredatorbehaviourinsemiferalhorsesinnateresponseandtheinfluenceofexternalfactors
AT martinakomarkova antipredatorbehaviourinsemiferalhorsesinnateresponseandtheinfluenceofexternalfactors