Analyze Diet

Topic:Social Behavior

Social behavior in horses encompasses the interactions and relationships that occur between individual horses within a group setting. These behaviors are influenced by factors such as hierarchy, communication, and social bonding, which are integral to the social structure of equine groups. Horses engage in various social behaviors, including grooming, play, and aggression, which facilitate group cohesion and stability. Understanding social behavior in horses provides insights into their welfare, management, and training. This page compiles peer-reviewed research studies and scholarly articles that explore the patterns, functions, and implications of social behavior in horses.
The role of space availability and affiliation in shaping equine social distances and dynamics.
Scientific reports    March 25, 2025   Volume 15, Issue 1 10273 doi: 10.1038/s41598-025-92943-4
Torres Borda L, Auer U, Jenner F.Horses confined to enclosures with limited opportunities for spatial avoidance and escape experience heightened social stress and conflict. While forced proximity can pose welfare risks, voluntary social proximity is considered a positive indicator of well-being. To investigate the effects of space availability on spatiotemporal dynamics, social network structure and agonistic interactions, this study used ultra-wideband sensors to continuously (1 Hz) measure interindividual distances in 34 horses across three groups under paddock and field conditions. Interindividual distances increased in l...
Learning from eavesdropping on human-human encounters changes feeding location choice in horses (Equus Caballus).
Animal cognition    March 17, 2025   Volume 28, Issue 1 23 doi: 10.1007/s10071-025-01946-1
Krueger K, Roll A, Beyer AJ, Föll A, Bernau M, Farmer K.When animals observe human signals, they may learn from them. Such learning from humans has been reported for intentional communication between humans with animals, but animals might also learn socially by observing unintentional information transfer when eavesdropping on humans-human encounters. In this study, 12 of 17 horses significantly changed their preference for a feeding location after observing approval in a human-human interaction there, and horses kept in social housing adapted in a higher percentage of trials to human-human demonstrations than those in individual housing. This indi...
Nay to Prey: Challenging the View of Horses as a “Prey” Species.
Animals : an open access journal from MDPI    February 22, 2025   Volume 15, Issue 5 641 doi: 10.3390/ani15050641
Steklis NG, Peñaherrera-Aguirre M, Steklis HD.This paper challenges the prevalent characterization of domesticated horses as prey species that inherently view humans as predators. Drawing on evolutionary, ethological, and cognitive evidence, we propose the "mutualistic coevolution hypothesis", which posits that horses and humans have evolved a partnership marked by cooperation rather than fear. We critically assess the "prey hypothesis", emphasizing a predator-prey model, which dominates equine training and the literature, and we argue that it inadequately explains horses' morphology, behaviors, and cognitive capacities. Comparative studi...
Mean mares? Habitat features influence female aggression in response to social instability in the feral horse (Equus caballus).
Biology letters    January 15, 2025   Volume 21, Issue 1 20240494 doi: 10.1098/rsbl.2024.0494
Nuñez CMV, Adelman JS.It is unclear how habitat features alter animal responses to social instability. Only by uncovering such interactions can we fully understand the evolutionary drivers and fitness consequences of sociality. We capitalize on a management-induced manipulation of social stability in an island population of free-ranging feral horses (), living across three distinct habitat types. We tested whether female group-changing behaviour (a reliable measure of social instability) affected (i) female-female aggression, (ii) rank within female dominance hierarchies, (iii) stability of female hierarchies (in t...
Social Relationships of Captive Bachelor Przewalski’s Horses and Their Effect on Daily Activity and Space Use.
Animals : an open access journal from MDPI    December 28, 2024   Volume 15, Issue 1 53 doi: 10.3390/ani15010053
Nykonenko A, Moturnak Y, McLoughlin PD.Understanding social relationships in at-risk species held in captivity is vital for their welfare and potential reintroduction. In social species like the Przewalski's horse (), daily time allocation and space use may be influenced by social structure and, in turn, reflect welfare. Here, we identify social relationships, time budgets, and spatial distribution of a group of nine older (aged 6-21 years) male Przewalski's horses living in a non-breeding (bachelor) group. We conducted our work at the Askania-Nova Biosphere Reserve, over 65 h of observation in summer, 2015. Horses formed stronger ...
Mixed strongyle parasite infections vary across host age and space in a population of feral horses.
Parasitology    December 12, 2024   1-18 doi: 10.1017/S0031182024001185
Ahn S, Redman EM, Gavriliuc S, Bellaw J, Gilleard JS, McLoughlin PD, Poissant J.Identifying factors that drive among-individual variation in mixed parasitic infections is fundamental to understanding the ecology and evolution of host–parasite interactions. However, a lack of non-invasive diagnostic tools to quantify mixed infections has restricted their investigation for host populations in the wild. This study applied DNA metabarcoding on parasite larvae cultured from faecal samples to characterize mixed strongyle infections of 320 feral horses on Sable Island, Nova Scotia, Canada, in 2014 to test for the influence of host (age, sex and reproductive/social status) and ...
Forage, freedom of movement, and social interactions remain essential fundamentals for the welfare of high-level sport horses.
Frontiers in veterinary science    November 20, 2024   Volume 11 1504116 doi: 10.3389/fvets.2024.1504116
Phelipon R, Hennes N, Ruet A, Bret-Morel A, Górecka-Bruzda A, Lansade L.Societal concerns for animal welfare extend to all domestic species, including high-level sport horses. The welfare of these horses, notably highlighted during the recent Olympics, has garnered significant public interest, prompting inquiries into their living conditions. Animal welfare studies have emphasised three key needs crucial to equine welfare: unlimited access to forage, freedom of movement, and social interactions with peers, commonly referred to as the "3Fs"-access to Forage, Freedom of movement, and interactions with Friend conspecifics. However, the feasibility and benefits of sat...
Living the good life? A systematic review of behavioural signs of affective state in the domestic horse (Equus caballus) and factors relating to quality of life. Part I: Fulfilment of species-specific needs.
Animal welfare (South Mimms, England)    October 21, 2024   Volume 33 e40 doi: 10.1017/awf.2024.38
Hall C, Kay R.The welfare of horses involved in sport and leisure activities has come under increasing scrutiny, both from within the equine sector and from the public. A systematic review of scientific evidence was conducted to derive observable, evidence-based behavioural measures of positive or negative affective state and factors relating to quality of life in the domestic horse (Equus caballus). Two separate searches (including the terms 'emotion/affect', or 'stress') were conducted, with 179 articles being retained. In Part I of this two-part review (companion paper published simultaneously), articles...
Welfare assessment of stabled horses in five equestrian disciplines.
Journal of equine veterinary science    September 27, 2024   105203 doi: 10.1016/j.jevs.2024.105203
Jovanović V, Vučinić M, Voslarova E, Nenadović K.In Serbia, at present, there is very little information about the welfare of horses. The aim of this study was to identify the main welfare issues likely to be encountered in five different categories of horses (Western riding horses, riding school horses, leisure horses, jumping horses, and endurance horses) kept in stabled housing systems. A total of 50 horses were evaluated using the Animal Welfare Indicator (AWIN) welfare assessment protocol for horses. Identified welfare issues in horses were inadequate box dimensions (52%, 26/50), insufficient quantity of bedding material (34%, 17/50), d...
Yawning in sync: implications for social cohesion in horses.
Current zoology    September 16, 2024   Volume 71, Issue 2 137-151 doi: 10.1093/cz/zoae052
The increasing interest in the study of spontaneous (SY) and contagious yawning (CY) was so far focused on several taxa, especially primates. Here, we focused on SY and CY in horses, a suitable species due to their complex social dynamics that has been largely overlooked in research on these phenomena. By analyzing videos of 48 horses on pasture, we identified 2 yawning morphologies: Covered ( ) and Uncovered Teeth ( ). Using EquiFACS, we quantitatively demonstrated that and differ in terms of muscle recruitment. Moreover, we provide the first evidence for the presence of CY by comparing 2...
Social facilitation of trotting: Can horses perceive and adapt to the movement of another horse?
PloS one    August 26, 2024   Volume 19, Issue 8 e0309474 doi: 10.1371/journal.pone.0309474
Bogossian PM, Pereira JS, da Silva NF, Hilgert AR, Seidel SRT, Fülber J, Belli CB, Fernandes WR.Exercise intensity is prone to be self-regulated in horses exercising freely. The main drivers include social, feeding and escape behaviors, as well as the operant conditioning. We hypothesized that self-regulated exercise intensity may increase due to the presence of another horse exercising ahead. Seven horses were assigned to a 2x2 crossover trial following treadmill familiarization. Video images of a trotting horse were displayed on the wall in front of the experimental unit (Visual), which was positioned in the treadmill. Physiological and behavioral markers were further compared with a c...
Oxytocin homogenizes horse group organization.
iScience    June 24, 2024   Volume 27, Issue 7 110356 doi: 10.1016/j.isci.2024.110356
Brooks J, Maeda T, Ringhofer M, Yamamoto S.The oxytocinergic system has been suggested to make up an important part of the endocrine basis of group cohesion. However, controlled studies in open-group settings have not been performed. We here investigated the impact of exogenous intranasal oxytocin on the group-level social organization of 5 groups of horses ( = 58; 12 mares and 46 geldings) through GPS tracking and social network analysis. We find oxytocin flattened social differentiation across levels. Most strikingly, oxytocin did not simply reinforce existing bonds but selectively shifted social preferences toward homogenization -...
Proximity tracking using ultra-wideband technology for equine social behaviour research.
Scientific reports    April 30, 2024   Volume 14, Issue 1 9971 doi: 10.1038/s41598-024-60805-0
Torres Borda L, Roth P, Lumetzberger J, Auer U, Jenner F.Sociopositive interactions with conspecifics are essential for equine welfare and quality of life. This study aimed to validate the use of wearable ultra-wideband (UWB) technology to quantify the spatial relationships and dynamics of social behaviour in horses by continuous (1/s) measurement of interindividual distances. After testing the UWB devices' spatiotemporal accuracy in a static environment, the UWB measurement validity, feasibility and utility under dynamic field conditions was assessed in a group of 8 horses. Comparison of the proximity measurements with video surveillance data estab...
Does social motivation mitigate fear caused by a sudden sound in horses?
Animal cognition    July 14, 2023   doi: 10.1007/s10071-023-01805-x
Janicka W, Wilk I, Próchniak T.Living in a herd has multiple advantages for social species and is a primary survival strategy for prey. The presence of conspecifics, identified as a social buffer, may mitigate the individual stress response. Social isolation is, therefore, particularly stressful for horses, which are gregarious animals. However, they are not equally vulnerable to separation from the group. We tested whether more and less socially dependent horses and independent individuals would differ in their responses to novel and sudden sounds occurring in two contexts: non-social and social motivation. Twenty warmbloo...
Social licence to operate: what’s next for horseracing?
The Veterinary record    July 7, 2023   Volume 193, Issue 1 18-22 doi: 10.1002/vetr.3233
Loeb J, Gray A.No abstract available
An evaluation of the effect of equine-facilitated psychotherapy on patients with substance use disorders.
PloS one    June 28, 2023   Volume 18, Issue 6 e0286867 doi: 10.1371/journal.pone.0286867
Machová K, Juríčková V, Kasparová A, Petrová K, Sládková B, Svobodová I.Equine Facilitated Psychiatry and Psychology (EFPP) is a supportive non-pharmacological treatment program used in the treatment of patients with substance use disorder. The aim of this study was to evaluate a possible change in patient's health and health-related quality of life between the first and fourth session of the EFPP program using the Assessment of Quality of Life (AQoL) and the Health of the Nation Outcome Scales (HoNOS). The Human-Animal Interaction Scale (HAIS) and a 5-point Likert-type scale was used for an assessment of patient's mood in the experimental group. The study sample ...
Hair Cortisol and Testosterone Concentrations in Relation to Maturity and Breeding Status of Male Feral Horses.
Animals : an open access journal from MDPI    June 27, 2023   Volume 13, Issue 13 doi: 10.3390/ani13132129
Medill SA, Janz DM, McLoughlin PD.Steroid-hormone concentrations from non-invasively obtained biomarkers, like hair, can provide a representation of circulating hormones diffused over relatively long time periods (e.g., weeks or months). The hormone cortisol is often associated with physiological or even psychological stress, while testosterone is strongly associated with male development and reproductive success. Increasingly, studies are using hormone levels derived from hair to make inferences among both domestic animals and wildlife. For horses, all previous hair hormone analysis has been done on companion or working anima...
Hair Cortisol Concentrations in Feral Horses and the Influence of Physiological and Social Factors.
Animals : an open access journal from MDPI    June 27, 2023   Volume 13, Issue 13 doi: 10.3390/ani13132133
Medill SA, Janz DM, McLoughlin PD.Cortisol is a glucocorticoid hormone produced during activation of the hypothalamic-pituitary-adrenal axis (HPA) in response to psychological or physiological demands. High amounts of circulating cortisol can be found in individuals experiencing energetically demanding physiological events, such as pregnancy, lactation, injury, or starvation, but, also, in individuals who may have less obvious HPA activation from social situations. The feral horse population on Sable Island (Nova Scotia, Canada) provides an opportunity to look at hair cortisol concentration (HCC) as a proxy for circulating cor...
Horses (Equus caballus) facial micro-expressions: insight into discreet social information.
Scientific reports    May 27, 2023   Volume 13, Issue 1 8625 doi: 10.1038/s41598-023-35807-z
Tomberg C, Petagna M, de Selliers de Moranville LA.Facial micro-expressions are facial expressions expressed briefly (less than 500 ms) and involuntarily. Described only in humans, we investigated whether micro-expressions could also be expressed by non-human animal species. Using the Equine Facial action coding system (EquiFACS), an objective tool based on facial muscles actions, we demonstrated that a non-human species, Equus caballus, is expressing facial micro-expressions in a social context. The AU17, AD38 and AD1 were selectively modulated as micro-expression-but not as standard facial expression (all durations included)-in presence of ...
Out of the stable: Social disruption and concurrent shifts in the feral mare (Equus caballus) fecal microbiota.
Ecology and evolution    May 11, 2023   Volume 13, Issue 5 e10079 doi: 10.1002/ece3.10079
Vaziri GJ, Jones MM, Carr HA, Nuñez CMV.The disruption of animals' symbiotic bacterial communities (their microbiota) has been associated with myriad factors including changes to the diet, hormone levels, and various stressors. The maintenance of healthy bacterial communities may be especially challenging for social species as their microbiotas are also affected by group membership, social relationships, microbial transfer between individuals, and social stressors such as increased competition and rank maintenance. We investigated the effects of increased social instability, as determined by the number of group changes made by femal...
Equine Social Behaviour: Love, War and Tolerance.
Animals : an open access journal from MDPI    April 26, 2023   Volume 13, Issue 9 1473 doi: 10.3390/ani13091473
Torres Borda L, Auer U, Jenner F.Sociality is an ethological need of horses that remained unchanged by domestication. Accordingly, it is essential to include horses' social behavioural requirements and the opportunity to establish stable affiliative bonds in equine management systems and welfare assessment. Thus, this systematic review aims to provide an up-to-date analysis of equine intraspecific social ethograms. A literature review yielded 27 papers that met the inclusion criteria by studying adult (≥2 years) equine social behaviour with conspecifics using a well-defined ethogram. Social interactions were observed in 851...
Social Box: A New Housing System Increases Social Interactions among Stallions.
Animals : an open access journal from MDPI    April 20, 2023   Volume 13, Issue 8 1408 doi: 10.3390/ani13081408
Zollinger A, Wyss C, Bardou D, Bachmann I.In domestic conditions, adult stallions are mostly housed individually in internal stables to reduce the risk of injuries during social interactions. Social deprivation in horses results in physiological stress and behavioural problems. The aim of this study was to test the "social box" (SB), which allows closer physical contact between neighbouring horses. Eight pairs of stallions (n = 16) were filmed over a 24 h period in the SB and in their usual box stables, "conventional boxes" (CB), which strongly restrict tactile contact. The effect of housing in the SB on behaviour and the occurrence a...
Equine assisted services impact on social skills in autism spectrum disorder: A meta-analysis.
Progress in neuro-psychopharmacology & biological psychiatry    April 7, 2023   Volume 125 110765 doi: 10.1016/j.pnpbp.2023.110765
Madigand J, Rio M, Vandevelde A.Many studies focus on the impact of equine assisted services (EAS) on social skills in autism spectrum disorder (ASD) but existing data are not consensual and the only available meta-analysis included only three studies and did not consider the social responsiveness scale (SRS). This meta-analysis aims to measure the impact of EAS on social skills in ASD. Using Pubmed, Embase, Web of Science and the Cochrane Library, the means and standard deviations of every available SRS post-intervention scores in each participant group were collected from the five selected randomised controlled trials with...
Social License to Operate-Why Public Perception Matters for Horse Sport-Some Personal Reflections.
Journal of equine veterinary science    March 8, 2023   Volume 124 104266 doi: 10.1016/j.jevs.2023.104266
Heleski CR.What is a social license to operate (SLO)? Why would this concept matter for horse sport? In perhaps its simplest form, "social license to operate" is the public's perception of an industry or activity. It is a challenging concept to fully grasp because it does not arrive as a document given by a government agency. Yet it is every bit as important-perhaps more so. Does the industry in question operate with transparency? Does the public believe in the integrity of the stakeholders who are most likely to benefit from the activity? Do people believe there is legitimacy in the scrutinized industry...
Breast Cancer: How Hippotherapy Bridges the Gap between Healing and Recovery-A Randomized Controlled Clinical Trial.
Cancers    February 19, 2023   Volume 15, Issue 4 1317 doi: 10.3390/cancers15041317
Viruega H, Galy C, Loriette C, Jacquot S, Houpeau JL, Gaviria M.Breast cancer is the most diagnosed women's cancer, and has a high survival rate. Despite great progress in detection and treatment, life reconstruction requires comprehensive cross-sectoral approaches between different disciplines and deeper consideration of the patient's challenges. Hippotherapy is an emerging specialized rehabilitation approach, performed by accredited health professionals and equine specialists, on specially trained horses via their movement, activating major paths for physical, mental, psychic and social reinforcement, and is synergistic to rehabilitative and supportive c...
Changing Hearts and Minds in the Equestrian World One Behaviour at a Time.
Animals : an open access journal from MDPI    February 19, 2023   Volume 13, Issue 4 748 doi: 10.3390/ani13040748
Wolframm IA, Douglas J, Pearson G.Equestrianism is currently facing a range of pressing challenges. These challenges, which are largely based on evolving attitudes to ethics and equine wellbeing, have consequences for the sport's social licence to operate. The factors that may have contributed to the current situation include overarching societal trends, specific aspects of the equestrian sector, and factors rooted in human nature. If equestrianism is to flourish, it is evident that much needs to change, not the least, human behaviour. To this end, using established behaviour change frameworks that have been scientifically val...
Equine-Assisted Therapeutic Intervention in Institutionalized Children: Case Studies.
International journal of environmental research and public health    February 6, 2023   Volume 20, Issue 4 2846 doi: 10.3390/ijerph20042846
Matias AR, Santos GD, Almeida N.A significant number of institutionalized children have behavior problems. Socio-emotional skills are fundamental for their adaptation and success throughout life and are usually weakened in this population. Equine-assisted services (EAS) are a form of therapeutic mediation that facilitates and requires the practitioner's participation, contributing to the promotion of various psychomotor and socio-emotional dimensions. This study was developed during 17 sessions of EAS with a psychomotor intervention, which took place individually and weekly and lasted approximately 45 min, with three institu...
Effects of Equine-Assisted Activities and Therapies for Individuals with Autism Spectrum Disorder: Systematic Review and Meta-Analysis.
International journal of environmental research and public health    February 1, 2023   Volume 20, Issue 3 2630 doi: 10.3390/ijerph20032630
Xiao N, Shinwari K, Kiselev S, Huang X, Li B, Qi J.Autism spectrum disorder (ASD) has become a critical public health issue that affects more than 78 million people. In many recent studies, the authors have demonstrated that equine-assisted activities and therapies (EAATs) can substantially improve the social and behavioral skills of children with ASD. However, the qualities of the studies differ, and some authors reached opposite conclusions. In this review, we systematically and objectively examined the effectiveness of EAATs for people with ASD, combining both qualitative and quantitative methods. We searched five databases (PubMed, Scopus,...
A Bioeconomic Model for the Thoroughbred Racing Industry-Optimisation of the Production Cycle with a Horse Centric Welfare Perspective.
Animals : an open access journal from MDPI    January 30, 2023   Volume 13, Issue 3 479 doi: 10.3390/ani13030479
Legg KA, Gee EK, Breheny M, Gibson MJ, Rogers CW.The Thoroughbred racing industry faces new and competing pressures to operate within a modern, changing society. Three major moderators drive the focus and productivity of the industry worldwide: economic sustainability, horse biology and social licence to operate. This review proposes that despite the apparent homogeneity in the structure of racing across jurisdictions due to international regulation of the sport, there are significant differences within each jurisdiction in each of the three moderators. This creates challenges for the comparison of injury risk factors for racehorses within t...
Tend and Befriend in Horses: Partner Preferences, Lateralization, and Contextualization of Allogrooming in Two Socially Stable Herds of Quarter Horse Mares.
Animals : an open access journal from MDPI    January 7, 2023   Volume 13, Issue 2 225 doi: 10.3390/ani13020225
Kieson E, Goma AA, Radi M.Studies show that horses express favoritism through shared proximity and time and demonstrate unique affiliative behaviors such as allogrooming (mutual scratching) with favorite conspecifics. Allogrooming also occurs more frequently during stress and has been observed to occur more frequently in domestic herds than feral. The role of partner preference, lateralization, and duration of allogrooming as measures of social bonding has remained unclear. The present study looked at two socially stable herds of mares (n = 85, n = 115) to determine the frequency, duration, visual field of view and par...
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