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Author Fisher, J.; Hinde, R. A.
Title The opening of milk bottles by birds Type Journal Article
Year 1994 Publication (down) British Birds Abbreviated Journal British Birds
Volume Issue 42 Pages 347-357
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Call Number Equine Behaviour @ team @ Serial 6525
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Author Cozzi, B.; Povinelli, M.; Ballarin, C.; Granato, A.
Title The Brain of the Horse: Weight and Cephalization Quotients Type Journal Article
Year 2014 Publication (down) Brain, Behavior and Evolution Abbreviated Journal Brain Behav Evol
Volume 83 Issue 1 Pages 9-16
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Abstract The horse is a common domestic animal whose anatomy has been studied since the XVI century. However, a modern neuroanatomy of this species does not exist and most of the data utilized in textbooks and reviews derive from single specimens or relatively old literature. Here, we report information on the brain of Equus caballus obtained by sampling 131 horses, including brain weight (as a whole and subdivided into its constituents), encephalization quotient (EQ), and cerebellar quotient (CQ), and comparisons with what is known about other relevant species. The mean weight of the fresh brains in our experimental series was 598.63 g (SEM ± 7.65), with a mean body weight of 514.12 kg (SEM ± 15.42). The EQ was 0.78 and the CQ was 0.841. The data we obtained indicate that the horse possesses a large, convoluted brain, with a weight similar to that of other hoofed species of like mass. However, the shape of the brain, the noteworthy folding of the neocortex, and the peculiar longitudinal distribution of the gyri suggest an evolutionary specificity at least partially separate from that of the Cetartiodactyla (even-toed mammals and cetaceans) with whom Perissodactyla (odd-toed mammals) are often grouped.
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ISSN 0006-8977 ISBN Medium
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Call Number Equine Behaviour @ team @ Serial 6592
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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 (down) BMC Veterinary Research Abbreviated Journal
Volume 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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Call Number Equine Behaviour @ team @ Janczarek2020 Serial 6624
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Author Dong, D.; Jones, G.; Zhang, S.
Title Dynamic evolution of bitter taste receptor genes in vertebrates Type Journal Article
Year 2009 Publication (down) BMC Evolutionary Biology Abbreviated Journal
Volume 9 Issue 1 Pages 12
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Abstract Sensing bitter tastes is crucial for many animals because it can prevent them from ingesting harmful foods. This process is mainly mediated by the bitter taste receptors (T2R), which are largely expressed in the taste buds. Previous studies have identified some T2R gene repertoires, and marked variation in repertoire size has been noted among species. However, the mechanisms underlying the evolution of vertebrate T2R genes remain poorly understood.
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ISSN 1471-2148 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Dong2009 Serial 6637
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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 (down) Biology Letters Abbreviated Journal Biol. Lett.
Volume 16 Issue 2020122 Pages
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Call Number Equine Behaviour @ team @ Serial 6660
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Author Imbert, C.; Caniglia, R.; Fabbri, E.; Milanesi, P.; Randi, E.; Serafini, M.; Torretta, E.; Meriggi, A.
Title Why do wolves eat livestock?: Factors influencing wolf diet in northern Italy Type Journal Article
Year 2016 Publication (down) Biological Conservation Abbreviated Journal
Volume 195 Issue Pages 156-168
Keywords Scat analysis; Feeding ecology; Prey selection; Wolf-human conflicts
Abstract Thanks to protection by law and increasing habitat restoration, wolves (Canis lupus) are currently re-colonizing Europe from the surviving populations of Russia, the Balkan countries, Spain and Italy, raising the need to update conservation strategies. A major conservation issue is to restore connections and gene flow among fragmented populations, thus contrasting the deleterious consequences of isolation. Wolves in Italy are expanding from the Apennines towards the Alps, crossing the Ligurian Mountains (northern Italy) and establishing connections with the Dinaric populations. Wolf expansion is threatened by poaching and incidental killings, mainly due to livestock depredations and conflicts with shepherds, which could limit the establishment of stable populations. Aiming to find out the factors affecting the use of livestock by wolves, in this study we determined the composition of wolf diet in Liguria. We examined 1457 scats collected from 2008 to 2013. Individual scats were genotyped using a non-invasive genetic procedure, and their content was determined using microscopical analyses. Wolves in Liguria consumed mainly wild ungulates (64.4%; in particular wild boar Sus scrofa and roe deer Capreolus capreolus) and, to a lesser extent, livestock (26.3%; in particular goats Capra hircus). We modeled the consumption of livestock using environmental features, wild ungulate community diversity, husbandry characteristics and wolf social organization (stable packs or dispersing individuals). Wolf diet varied according to years and seasons with an overall decrease of livestock and an increase of wild ungulate consumption, but also between packs and dispersing individuals with greater livestock consumption for the latter. The presence of stable packs, instead of dispersing wolves, the adoption of prevention measures on pastures, roe deer abundance, and the percentage of deciduous woods, reduced predation on livestock. Thus, we suggest promoting wild ungulate expansion, the use of prevention tools in pastures, and supporting wolf pack establishment, avoiding lethal control and poaching, to mitigate conflicts between wolf conservation and husbandry.
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ISSN 0006-3207 ISBN Medium
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Call Number Equine Behaviour @ team @ Serial 6621
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Author Hoelker, S.
Title Typologie der deutschen Pferdehaltung – Eine empirische Studie mittels Two-Step-Clusteranalyse Type Journal Article
Year 2016 Publication (down) Berichte über Landwirtschaft Zeitschrift für Agrarpolitik und Landwirtschaft Abbreviated Journal
Volume 94 Issue 3 Pages
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Publisher BMEL Place of Publication Bonn Editor
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Call Number Equine Behaviour @ team @ Serial 6643
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Author Holzapfel, M.; Wagner, C.; Kluth, G. et al.
Title Zur Nahrungsökologie der Wölfe (Canis lupus) in Deutschland. Type Journal Article
Year 2011 Publication (down) Beiträge zur Jagd- und Wildforschung Abbreviated Journal
Volume 36 Issue Pages 117-128
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Call Number Equine Behaviour @ team @ Serial 6690
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Author Griffin, A.S.; Guez, D.
Title Innovation and problem solving: A review of common mechanisms Type Journal Article
Year 2014 Publication (down) Behavioural Processes Abbreviated Journal Behav. Process.
Volume 109 Issue Pages 121-134
Keywords Behavioural flexibility; Cognition; Innovation; Problem solving
Abstract Behavioural innovations have become central to our thinking about how animals adjust to changing environments. It is now well established that animals vary in their ability to innovate, but understanding why remains a challenge. This is because innovations are rare, so studying innovation requires alternative experimental assays that create opportunities for animals to express their ability to invent new behaviours, or use pre-existing ones in new contexts. Problem solving of extractive foraging tasks has been put forward as a suitable experimental assay. We review the rapidly expanding literature on problem solving of extractive foraging tasks in order to better understand to what extent the processes underpinning problem solving, and the factors influencing problem solving, are in line with those predicted, and found, to underpin and influence innovation in the wild. Our aim is to determine whether problem solving can be used as an experimental proxy of innovation. We find that in most respects, problem solving is determined by the same underpinning mechanisms, and is influenced by the same factors, as those predicted to underpin, and to influence, innovation. We conclude that problem solving is a valid experimental assay for studying innovation, propose a conceptual model of problem solving in which motor diversity plays a more central role than has been considered to date, and provide recommendations for future research using problem solving to investigate innovation. This article is part of a Special Issue entitled: Cognition in the wild.
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ISSN 0376-6357 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6556
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Author Giljov, A.; Karenina, K.
Title Differential roles of the right and left brain hemispheres in the social interactions of a free-ranging ungulate Type Journal Article
Year 2019 Publication (down) Behavioural Processes Abbreviated Journal Behav. Process.
Volume 168 Issue Pages 103959
Keywords Laterality; Hemispheric specialization; Brain asymmetry; Eye preference; Ungulate; Bovid
Abstract Despite the abundant empirical evidence on lateralized social behaviours, a clear understanding of the relative roles of two brain hemispheres in social processing is still lacking. This study investigated visual lateralization in social interactions of free-ranging European bison (Bison bonasus). The bison were more likely to display aggressive responses (such as fight and side hit), when they viewed the conspecific with the right visual field, implicating the left brain hemisphere. In contrast, the responses associated with positive social interactions (female-to-calf bonding, calf-to-female approach, suckling) or aggression inhibition (fight termination) occurred more likely when the left visual field was in use, indicating the right hemisphere advantage. The results do not support either assumptions of right-hemisphere dominance for control of various social functions or hypotheses about simple positive (approach) versus negative (withdrawal) distinction between the hemispheric roles. The discrepancy between the studies suggests that in animals, the relative roles of the hemispheres in social processing may be determined by a fine balance of emotions and motivations associated with the particular social reaction difficult to categorize for a human investigator. Our findings highlight the involvement of both brain hemispheres in the control of social behaviour.
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ISSN 0376-6357 ISBN Medium
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Call Number Equine Behaviour @ team @ Serial 6587
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