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Author Nakagawa, S.
Title A farewell to Bonferroni: the problems of low statistical power and publication bias Type Journal Article
Year 2004 Publication Behavioral Ecology Abbreviated Journal beheco
Volume (up) 15 Issue 6 Pages 1044-1045
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ISSN 1045-2249 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6560
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Author Byrne, R.W.
Title Do larger brains mean greater intelligence? Type Journal Article
Year 1993 Publication Behavioral and Brain Sciences Abbreviated Journal Behav. Brain Sci.
Volume (up) 16 Issue 4 Pages 696-697
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Publisher Cambridge University Press Place of Publication Editor
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ISSN 1469-1825 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6171
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Author Blakeman, N.E.; Friend, T.H.
Title Visual discrimination at varying distances in Spanish goats Type Journal Article
Year 1986 Publication Appl Anim Behav Sci Abbreviated Journal
Volume (up) 16 Issue Pages
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Call Number Equine Behaviour @ team @ Blakeman1986 Serial 6251
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Author Van Schaik, C.P.; Isler, K.; Burkart, J.M.
Title Explaining brain size variation: from social to cultural brain Type Journal Article
Year 2012 Publication Trends Ecol Evol Abbreviated Journal
Volume (up) 16 Issue Pages
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Call Number Equine Behaviour @ team @ Van Schaik2012 Serial 6304
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Author Janczarek, I.; Stachurska, A.; Kedzierski, W.; Wisniewska, A.; Ryzak, M.; Koziol, A.
Title The intensity of physiological and behavioral responses of horses to predator vocalizations Type Journal Article
Year 2020 Publication BMC Veterinary Research Abbreviated Journal
Volume (up) 16 Issue 1 Pages 431
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Abstract Predatory attacks on horses can become a problem in some parts of the world, particularly when considering the recovering gray wolf populations. The issue studied was whether horses transformed by humans and placed in stable-pasture environments had retained their natural abilities to respond to predation risk. The objective of the study was to determine the changes in cardiac activity, cortisol concentrations, and behavior of horses in response to the vocalizations of two predators: the gray wolf (Canis lupus), which the horses of the breed studied had coevolved with but not been exposed to recently, and Arabian leopard (Panthera pardus nimr), from which the horses had been mostly isolated. In addition, we hypothesized that a higher proportion of Thoroughbred (TB) horse ancestry in the pedigree would result in higher emotional excitability in response to predator vocalizations. Nineteen horses were divided into groups of 75%, 50% and 25% TB ancestry. The auditory test conducted in a paddock comprised a 10-min prestimulus period, a 5-min stimulus period when one of the predators was heard, and a 10-min poststimulus period without any experimental stimuli.
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ISSN 1746-6148 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Janczarek2020 Serial 6624
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Author Krueger, K.; Esch, L.; Byrne, R.
Title Need or opportunity? A study of innovations in equids Type Journal Article
Year 2021 Publication Plos One Abbreviated Journal Plos One
Volume (up) 16 Issue 9 Pages e0257730
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Abstract Debate persists over whether animals develop innovative solutions primarily in response to needs or conversely whether they innovate more when basic needs are covered and opportunity to develop novel behaviour is offered. We sourced 746 cases of “unusual” behaviour in equids by contacting equid owners and caretakers directly and via a website (https://innovative-behaviour.org), and by searching the internet platforms YouTube and Facebook for videos. The study investigated whether differences in need or opportunity for innovation were reflected in the numbers of different types of innovations and in the frequencies of repeating a once-innovative behaviour (i) with respect to the equids' sex, age, and breed type, (ii) across behavioural categories, and whether (iii) they were affected by the equids' management (single vs group housing, access to roughage feed, access to pasture, and social contact). We found that the numbers of different types of innovation and the frequency of displaying specific innovations were not affected by individual characteristics (sex, age, breed or equid species). Few types of innovation in escape and foraging contexts were observed, whilst the comfort, play, and social contexts elicited the greatest variety of innovations. We also found higher numbers of different types of innovations in horses kept in groups rather than in individual housing, and with unlimited rather than with restricted access to pasture and roughage. Equids in permanent social contact performed high rates of once-innovative behaviour. We suggest that equids produce goal-directed innovations and repeat the behaviour at high frequency in response to urgent needs for food and free movement or when kept in conditions with social conflict. However, equids devise the greatest variety of innovations when opportunity to play and to develop comfort behaviour arises and when kept in good conditions.
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Publisher Public Library of Science Place of Publication Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6653
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Author Bandini , E.; Motes-Rodrigo, A.; Steele, M.P.; Rutz, C.; Tennie, C.
Title Examining the mechanisms underlying the acquisition of animal tool behaviour Type Journal Article
Year 2020 Publication Biology Letters Abbreviated Journal Biol. Lett.
Volume (up) 16 Issue 2020122 Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6660
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Author Byström, A.; Clayton, H.M.; Hernlund, E.; Rhodin, M.; Egenvall, A.
Title Equestrian and biomechanical perspectives on laterality in the horse Type Journal Article
Year 2020 Publication Comparative Exercise Physiology Abbreviated Journal Comp. Exerc. Physiol.
Volume (up) 16 Issue 1 Pages 35-45
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Abstract It has been suggested that one of the underlying causes of asymmetrical performance and left/right bias in sound riding horses is laterality originating in the cerebral cortices described in many species. The aim of this paper is to review the published evidence for inherent biomechanical laterality in horses deemed to be clinically sound and relate these findings to descriptions of sidedness in equestrian texts. There are no established criteria to determine if a horse is left or right dominant but the preferred limb has been defined as the forelimb that is more frequently protracted during stance and when grazing. Findings on left-right differences in forelimb hoof shape and front hoof angles have been linked to asymmetric forelimb ground reaction forces. Asymmetries interpreted as motor laterality have been found among foals and unhandled youngsters, and the consistency or extent of asymmetries seems to increase with age. Expressions of laterality also vary with breed, sex, training and handling, stress, and body shape but there are no studies of the possible link between laterality and lameness. In a recent study of a group of seven dressage horses, a movement pattern in many ways similar to descriptions of sidedness in the equestrian literature, e.g. one hind limb being more protracted and placed more laterally than the other, has been documented. The role of innate laterality versus painful conditions, training, human handedness and simply habit remains to be determined. Understanding the biomechanical manifestations of laterality in healthy horses, including individual variation, would yield a potential basis for how laterality should be taken into account in relation to training/riding and rehabilitation of lameness.
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Publisher Wageningen Academic Publishers Place of Publication Editor
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1755-2540 ISBN Medium
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Notes doi: 10.3920/CEP190022 Approved no
Call Number Equine Behaviour @ team @ Serial 6663
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Author Guidi, A.; Lanata, A.; Valenza, G.; Scilingo, E.P.; Baragli, P.
Title Validation of smart textile electrodes for electrocardiogram monitoring in free-moving horses Type Journal Article
Year 2017 Publication Journal of Veterinary Behavior: Clinical Applications and Research Abbreviated Journal J. Vet. Behav.
Volume (up) 17 Issue Pages 19-23
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Abstract This article focuses on the validation of smart textile electrodes used to acquire electrocardiogram (ECG) signals in horses in a comfortable and robust manner. The performance of smart textile electrodes is compared with standard Ag/AgCl electrodes in terms of the percentage of motion artifacts (MAs, the noise that results from the movement of electrodes against the skin) and signal quality. Seven healthy Standardbred mares were equipped with 2 identical electronic systems for the simultaneous collection of ECGs. One system was equipped with smart textile electrodes, whereas the second was equipped with standard Ag/AgCl electrodes. Each horse was then monitored individually in a stall for 1 hour, without any movement constraints. The ECGs were visually examined by an expert who blindly labeled the ECG segments that had been corrupted by MAs. Finally, the percentage of MAs (MA%) was computed as the number of samples of the corrupted segments over the whole length of the signal. The total MA% was found to be lower for the smart textiles than for the Ag/AgCl electrodes. Consistent results were also obtained by investigating MAs over time. These results suggest that smart textile electrodes are more reliable when recording artifact-free ECGs in horses at rest. Thus, improving the acquisition of important physiological information related to the activity of the autonomic nervous system, such as heart rate variability, could help to provide reliable information on the mood and state of arousal of horses.
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Publisher Elsevier Place of Publication Editor
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Series Editor Series Title Abbreviated Series Title
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ISSN 1558-7878 ISBN Medium
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Notes doi: 10.1016/j.jveb.2016.10.001 Approved no
Call Number Equine Behaviour @ team @ Serial 6213
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Author Gabor, V.; Gerken, M.
Title Shetland ponies (Equus caballus) show quantity discrimination in a matching-to-sample design Type Journal Article
Year 2014 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume (up) 17 Issue 6 Pages 1233-1243
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Abstract Numerical competence is one of the aspects of animal cognition with a long history of research interest, but few results are available for the horse. In the present study, we investigated the ability of three Shetland ponies to discriminate between different quantities of geometric symbols presented on a computer screen in a matching-to-sample arrangement. In Experiment 1, the ponies had to relate two similar quantities to another, paired in contrasts (1 vs. 2, 3 vs. 4 and 4 vs. 5) of the same stimulus (dot). Specific pairs of quantities (all differing by one) of up to five different geometrical symbols were displayed in Experiment 2. In each session, both quantities (more and less) were used as sample in such a way that each of the two quantities presented in one test served as positive and as negative stimulus, respectively. The three Shetland ponies were able to discriminate between the given quantities of dots by showing more than 80 % correct responses in two consecutive sessions. Only one of the ponies distinguished different shapes of geometric symbols at a level of 4 versus 5 items. The results show that all ponies were capable of visual quantity discrimination in the present matching-to-sample design, but task solving seemed more difficult when quantities were composed of heterogeneous stimuli. The present results confirm our hypothesis that the ponies based their decision on the matching concept of sameness and were not biased by a spontaneous preference for higher quantities.
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ISSN 1435-9456 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Gabor2014 Serial 6174
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