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Author | Ahrendt, L.P.; Labouriau, R.; Malmkvist, J.; Nicol, C.J.; Christensen, J.W. | ||||
Title | Development of a standard test to assess negative reinforcement learning in horses | Type | Journal Article | ||
Year | 2015 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
Volume | 169 | Issue | Pages | 38-42 | |
Keywords | Algometry; Horse behaviour; Learning performance; Operant conditioning; Pressure-release; Horse training | ||||
Abstract | Most horses are trained by negative reinforcement. Currently, however, no standardised test for evaluating horses' negative reinforcement learning ability is available. The aim of this study was to develop an objective test to investigate negative reinforcement learning in horses. Twenty-four Icelandic horses (3 years old) were included in this study. The horses were tested in a pressure-release task on three separate days with 10, 7 and 5 trials on each side, respectively. Each trial consisted of pressure being applied on the hindquarter with an algometer. The force of the pressure was increased until the horse moved laterally away from the point of pressure. There was a significant decrease in required force over trials on the first test day (P<0.001), but not the second and third day. The intercepts on days 2 and 3 differed significantly from day 1 (P<0.001), but not each other. Significantly stronger force was required on the right side compared to the left (P<0.001), but there was no difference between first and second side tested (P=0.56). Individual performance was evaluated by median-force and the change in force over trials on the first test day. These two measures may explain different characteristics of negative reinforcement learning. In conclusion, this study presents a novel, standardised test for evaluating negative reinforcement learning ability in horses. | ||||
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ISSN | 0168-1591 | ISBN | Medium | ||
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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6650 | ||
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Author | Grönemann, C. | ||||
Title | Konfliktfeld Pferd und Wolf – Eine Untersuchung zu Einstellungen, Erwartungen und Befürchtungen von Pferdehaltern und Reitsportlern in Niedersachsen | Type | Manuscript | ||
Year | 2015 | Publication | master thesis | Abbreviated Journal | |
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Corporate Author | Thesis | Master's thesis | |||
Publisher | Universität Hildesheim | Place of Publication | Hildesheim | Editor | |
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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6683 | ||
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Author | Burton, A.C.; Neilson, E.; Moreira, D.; Ladle, A.; Steenweg, R.; Fisher, J.T.; Bayne, E.; Boutin, S. | ||||
Title | REVIEW: Wildlife camera trapping: a review and recommendations for linking surveys to ecological processes | Type | Journal Article | ||
Year | 2015 | Publication | Journal of Applied Ecology | Abbreviated Journal | J Appl Ecol |
Volume | 52 | Issue | 3 | Pages | 675-685 |
Keywords | animal movement; camera trap; capture-recapture; density estimation; imperfect detection; mammal monitoring; occupancy model; relative abundance; sampling error; wildlife survey methodology | ||||
Abstract | Summary Reliable assessment of animal populations is a long-standing challenge in wildlife ecology. Technological advances have led to widespread adoption of camera traps (CTs) to survey wildlife distribution, abundance and behaviour. As for any wildlife survey method, camera trapping must contend with sources of sampling error such as imperfect detection. Early applications focused on density estimation of naturally marked species, but there is growing interest in broad-scale CT surveys of unmarked populations and communities. Nevertheless, inferences based on detection indices are controversial, and the suitability of alternatives such as occupancy estimation is debatable. We reviewed 266 CT studies published between 2008 and 2013. We recorded study objectives and methodologies, evaluating the consistency of CT protocols and sampling designs, the extent to which CT surveys considered sampling error, and the linkages between analytical assumptions and species ecology. Nearly two-thirds of studies surveyed more than one species, and a majority used response variables that ignored imperfect detection (e.g. presence?absence, relative abundance). Many studies used opportunistic sampling and did not explicitly report details of sampling design and camera deployment that could affect conclusions. Most studies estimating density used capture?recapture methods on marked species, with spatially explicit methods becoming more prominent. Few studies estimated density for unmarked species, focusing instead on occupancy modelling or measures of relative abundance. While occupancy studies estimated detectability, most did not explicitly define key components of the modelling framework (e.g. a site) or discuss potential violations of model assumptions (e.g. site closure). Studies using relative abundance relied on assumptions of equal detectability, and most did not explicitly define expected relationships between measured responses and underlying ecological processes (e.g. animal abundance and movement). Synthesis and applications. The rapid adoption of camera traps represents an exciting transition in wildlife survey methodology. We remain optimistic about the technology's promise, but call for more explicit consideration of underlying processes of animal abundance, movement and detection by cameras, including more thorough reporting of methodological details and assumptions. Such transparency will facilitate efforts to evaluate and improve the reliability of camera trap surveys, ultimately leading to stronger inferences and helping to meet modern needs for effective ecological inquiry and biodiversity monitoring. | ||||
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Publisher | John Wiley & Sons, Ltd | Place of Publication | Editor | ||
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ISSN | 0021-8901 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | https://doi.org/10.1111/1365-2664.12432 | Approved | no | ||
Call Number | Equine Behaviour @ team @ | Serial | 6703 | ||
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Author | Meek, P.D.; Ballard, G.-A.; Fleming, P.J.S. | ||||
Title | The pitfalls of wildlife camera trapping as a survey tool in Australia | Type | Journal Article | ||
Year | 2015 | Publication | Australian Mammalogy | Abbreviated Journal | Aust. Mammal. |
Volume | 37 | Issue | 1 | Pages | 13-22 |
Keywords | camera trap constraints, critical review, remote cameras. | ||||
Abstract | Camera trapping is a relatively new addition to the wildlife survey repertoire in Australia. Its rapid adoption has been unparalleled in ecological science, but objective evaluation of camera traps and their application has not kept pace. With the aim of motivating practitioners to think more about selection and deployment of camera trap models in relation to research goals, we reviewed Australian camera trapping studies to determine how camera traps have been used and how their technological constraints may have affected reported results and conclusions. In the 54 camera trapping articles published between 1991 and 2013, mammals (86%) were studied more than birds (10%) and reptiles (3%), with small to medium-sized mammals being most studied. Australian camera trapping studies, like those elsewhere, have changed from more qualitative to more complex quantitative investigations. However, we found that camera trap constraints and limitations were rarely acknowledged, and we identified eight key issues requiring consideration and further research. These are: camera model, camera detection system, camera placement and orientation, triggering and recovery, camera trap settings, temperature differentials, species identification and behavioural responses of the animals to the cameras. In particular, alterations to animal behaviour by camera traps potentially have enormous influence on data quality, reliability and interpretation. The key issues were not considered in most Australian camera trap papers and require further study to better understand the factors that influence the analysis and interpretation of camera trap data and improve experimental design. | ||||
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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6704 | ||
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Author | Schwenk, B.K.; Fürst, A.E.; Bischhofberger, A.S. | ||||
Title | Traffic accident-related injuries in horses | Type | Journal Article | ||
Year | 2016 | Publication | Pferdeheilkunde – Equine Medicine | Abbreviated Journal | Equine Med. |
Volume | 32 | Issue | 3 | Pages | 192-199 |
Keywords | traffic / horse / injury / body site / accident / trauma | ||||
Abstract | Horses involved in road traffic accidents (RTAs) are commonly presented to veterinarians with varying types of injuries. The aim of this study was describe the pattern and severity of traffic accident-related injuries in horses in a single hospital population. Medical records of horses either hit by a motorized vehicle or involved in RTAs whilst being transported from 1993 to 2015 were retrospectively reviewed and the following data was extracted: Signalement, hospitalisation time, month in which the accident happened, cause of the accident, place of the accident and type of vehicle hitting the horse. Further the different body sites injured (head, neck, breast, fore limb, abdomen, back and spine, pelvis and ileosacral region, hind limb, tail and genital region), the type of injury (wounds, musculoskeletal lesions and internal lesions) and the presence of neurological signs were retrieved from the medical records. 34 horses hit by motorized vehicles and 13 horses involved in RTAs whilst being transported were included in the study. Most of the accidents where horses were hit by motorized vehicles occurred during December (14.7%) and October (14.7%), horses were most commonly hit by cars (85.3%) and the majority of accidents occurred on main roads (26.5%). In 29.4% of the cases, horses had escaped from their paddock and then collided with a motorized vehicle. Most of the accidents with horses involved in RTAs whilst being transported occurred during April (30.8%) and June (23.1%). In 76.9% of the cases the accident happened on a freeway. In the horses hit by motorized vehicles the proximal hind limbs were the body site most commonly affected (44.1%), followed by the proximal front limbs (38.2%) and the head (32.4%). When horses were involved in RTAs whilst being transported the proximal fore limbs (61.5%), the proximal hind limbs (53.8%) and the distal hind limbs, back and head (38.5% each) were the most common injured body sites. Wounds were the most common type of injury in both groups (85.3% hit by motorized vehicle, 76.9% transported ones). In horses hit by a motorized vehicle 35.3% suffered from fractures, in 20.6% a synovial structure was involved and in 5.9% a tendon lesion was present. 14.7% suffered from internal lesions and 14.7% showed neurologic symptoms (40% peripheral, 60% central neurologic deficits). On the other hand, in horses involved in a RTA whilst being transported 30.8% suffered from fractures. There were no synovial structures injured and no tendon injuries were present. Furthermore there were no internal lesions present and only one horse involved in a RTA showed central neurologic symptoms. Injuries of horses being hit by a motorized vehicle were more severe than when horses were protected by a trailer and involved in a RTA whilst being transported. The study has been able to identify the different injury types of traffic accident-related injuries in horses. Awareness of the nature of these injuries is important, to avoid underestimation of their severity. |
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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6207 | ||
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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 | 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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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6643 | ||
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Author | Marinsek, N.L.; Gazzaniga, M.S.; Miller, M.B. | ||||
Title | Chapter 17 – Split-Brain, Split-Mind | Type | Book Chapter | ||
Year | 2016 | Publication | The Neurology of Conciousness (Second Edition) | Abbreviated Journal | |
Volume | Issue | Pages | 271-279 | ||
Keywords | Split-brain; consciousness; lateralization; modular; left hemisphere interpreter | ||||
Abstract | The corpus callosum anatomically and functionally connects the two cerebral hemispheres. Despite its important role in interhemispheric communication however, severing the corpus callosum produces few--if any--noticeable cognitive or behavioral abnormalities. Incredibly, split-brain patients do not report any drastic changes in their conscious experience even though nearly all interhemispheric communication ceases after surgery. Extensive research has shown that both hemispheres remain conscious following disconnection and the conscious experience of each hemisphere is private and independent of the other. Additionally, the conscious experiences of the hemispheres appear to be qualitatively different, such that the consciousness of the left hemisphere is more enriched than the right. In this chapter, we offer explanations as to why split-brain patients feel unified despite possessing dual conscious experiences and discuss how the divided consciousness of split-brain patients can inform current theories of consciousness. | ||||
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Publisher | Academic Press | Place of Publication | San Diego | Editor | Laureys, S.; Gosseries, O.; Tononi, G. |
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ISSN | ISBN | 978-0-12-800948-2 | Medium | ||
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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6648 | ||
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Author | Mejdell, C.M.; Buvik, T.; Jørgensen, G.H.M.; Bøe, K.E. | ||||
Title | Horses can learn to use symbols to communicate their preferences | Type | Journal Article | ||
Year | 2016 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
Volume | 184 | Issue | Pages | 66-73 | |
Keywords | Operant conditioning; Blanket; Rug; Thermoregulation; Cognition; Clicker training | ||||
Abstract | This paper describes a method in which horses learn to communicate by touching different neutral visual symbols, in order to tell the handler whether they want to have a blanket on or not. Horses were trained for 10-15min per day, following a training program comprising ten steps in a strategic order. Reward based operant conditioning was used to teach horses to approach and touch a board, and to understand the meaning of three different symbols. Heat and cold challenges were performed to help learning and to check level of understanding. At certain stages, a learning criterion of correct responses for 8-14 successive trials had to be achieved before proceeding. After introducing the free choice situation, on average at training day 11, the horse could choose between a “no change” symbol and the symbol for either “blanket on” or “blanket off” depending on whether the horse already wore a blanket or not. A cut off point for performance or non-performance was set to day 14, and 23/23 horses successfully learned the task within this limit. Horses of warm-blood type needed fewer training days to reach criterion than cold-bloods (P<0.05). Horses were then tested under differing weather conditions. Results show that choices made, i.e. the symbol touched, was not random but dependent on weather. Horses chose to stay without a blanket in nice weather, and they chose to have a blanket on when the weather was wet, windy and cold (χ2=36.67, P<0.005). This indicates that horses both had an understanding of the consequence of their choice on own thermal comfort, and that they successfully had learned to communicate their preference by using the symbols. The method represents a novel tool for studying preferences in horses. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 0168-1591 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6651 | ||
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Author | Capitani, C.; Chynoweth, M.; Kusak, J.; Çoban, E.; Sekercioglu, Ç.H. | ||||
Title | Wolf diet in an agricultural landscape of north-eastern Turkey | Type | Journal Article | ||
Year | 2016 | Publication | Mammalia | Abbreviated Journal | Mammalia |
Volume | 80 | Issue | 3 | Pages | 329-334 |
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Series Editor | Series Title | Mammalia | Abbreviated Series Title | ||
Series Volume | 80 | Series Issue | 3 | Edition | |
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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ | Serial | 6687 | ||
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Author | Mori, E.; Benatti, L.; Lovari, S.; Ferretti, F. | ||||
Title | What does the wild boar mean to the wolf? | Type | Journal Article | ||
Year | 2016 | Publication | European Journal of Wildlife Research | Abbreviated Journal | |
Volume | 63 | Issue | 1 | Pages | 9 |
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Abstract | Generalist predators are expected to shape their diets according to the local availability of prey species. In turn, the extent of consumption of a prey would be influenced by the number of alternative prey species. We have tested this prediction by considering the wild boar and the grey wolf: two widespread species whose distribution ranges overlap largely in Southern Europe, e.g. in Italy. We have reviewed 16 studies from a total of 21 study areas, to assess whether the absolute frequency of occurrence of wild boar in the wolf diet was influenced by (i) occurrence of the other ungulate species in diet and (ii) the number of available ungulate species. Wild boar turned out to be the main prey of the wolf (49% occurrence, on average), followed by roe deer (24%) and livestock (18%). Occurrence of wild boar in the wolf diet decreased with increasing usage of roe deer, livestock, and to a lower extent, chamois and red deer. The number of prey species did not influence the occurrence of wild boar in the wolf diet. The wild boar is a gregarious, noisy and often locally abundant ungulate, thus easily detectable, to a predator. In turn, the extent of predation on this ungulate may not be influenced so much by the availability of other potential prey. Heavy artificial reductions of wild boar numbers, e.g. through numerical control, may concentrate predation by wolves on alternative prey (e.g. roe deer) and/or livestock, thus increasing conflicts with human activities. | ||||
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ISSN | 1439-0574 | ISBN | Medium | ||
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Notes | Approved | no | |||
Call Number | Equine Behaviour @ team @ Mori2016 | Serial | 6689 | ||
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