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Author |
Thornton Alex; Lukas Dieter |
Title |
Individual variation in cognitive performance: developmental and evolutionary perspectives |
Type |
Journal Article |
Year |
2012 |
Publication |
Philosophical Transactions of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Philos Trans R Soc Lond B Biol Sci |
Volume |
367 |
Issue |
1603 |
Pages |
2773-2783 |
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Royal Society |
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doi: 10.1098/rstb.2012.0214 |
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Equine Behaviour @ team @ |
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6555 |
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Author |
Tebbich Sabine; Griffin Andrea S.; Peschl Markus F.; Sterelny Kim |
Title |
From mechanisms to function: an integrated framework of animal innovation |
Type |
Journal Article |
Year |
2016 |
Publication |
Philosophical Transactions of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Philos Trans R Soc Lond B Biol Sci |
Volume |
371 |
Issue |
1690 |
Pages |
20150195 |
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Abstract |
Animal innovations range from the discovery of novel food types to the invention of completely novel behaviours. Innovations can give access to new opportunities, and thus enable innovating agents to invade and create novel niches. This in turn can pave the way for morphological adaptation and adaptive radiation. The mechanisms that make innovations possible are probably as diverse as the innovations themselves. So too are their evolutionary consequences. Perhaps because of this diversity, we lack a unifying framework that links mechanism to function. We propose a framework for animal innovation that describes the interactions between mechanism, fitness benefit and evolutionary significance, and which suggests an expanded range of experimental approaches. In doing so, we split innovation into factors (components and phases) that can be manipulated systematically, and which can be investigated both experimentally and with correlational studies. We apply this framework to a selection of cases, showing how it helps us ask more precise questions and design more revealing experiments. |
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Royal Society |
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doi: 10.1098/rstb.2015.0195 |
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Equine Behaviour @ team @ |
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6557 |
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Author |
Mann Janet; Patterson Eric M. |
Title |
Tool use by aquatic animals |
Type |
Journal Article |
Year |
2013 |
Publication |
Philosophical Transactions of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Phil. Trans. Biol. Sci. |
Volume |
368 |
Issue |
1630 |
Pages |
20120424 |
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Royal Society |
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doi: 10.1098/rstb.2012.0424 |
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Equine Behaviour @ team @ |
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6579 |
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Author |
Marr, I.; Preisler, V.; Farmer, K.; Stefanski, V.; Krueger, K. |
Title |
Non-invasive stress evaluation in domestic horses (Equus caballus): impact of housing conditions on sensory laterality and immunoglobulin A |
Type |
Journal Article |
Year |
2020 |
Publication |
Royal Society Open Science |
Abbreviated Journal |
Royal Society Open Science |
Volume |
7 |
Issue |
2 |
Pages |
191994 |
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Abstract |
The study aimed to evaluate sensory laterality and concentration of faecal immunoglobulin A (IgA) as non-invasive measures of stress in horses by comparing them with the already established measures of motor laterality and faecal glucocorticoid metabolites (FGMs). Eleven three-year-old horses were exposed to known stressful situations (change of housing, initial training) to assess the two new parameters. Sensory laterality initially shifted significantly to the left and faecal FGMs were significantly increased on the change from group to individual housing and remained high through initial training. Motor laterality shifted significantly to the left after one week of individual stabling. Faecal IgA remained unchanged throughout the experiment. We therefore suggest that sensory laterality may be helpful in assessing acute stress in horses, especially on an individual level, as it proved to be an objective behavioural parameter that is easy to observe. Comparably, motor laterality may be helpful in assessing long-lasting stress. The results indicate that stress changes sensory laterality in horses, but further research is needed on a larger sample to evaluate elevated chronic stress, as it was not clear whether the horses of the present study experienced compromised welfare, which it has been proposed may affect faecal IgA. |
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Royal Society |
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doi: 10.1098/rsos.191994 |
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Equine Behaviour @ team @ |
Serial |
6608 |
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Author |
Siniscalchi, M.; Padalino, B.; Aubé, L.; Quaranta, A. |
Title |
Right-nostril use during sniffing at arousing stimuli produces higher cardiac activity in jumper horses |
Type |
Journal Article |
Year |
2015 |
Publication |
Laterality: Asymmetries of Body, Brain and Cognition |
Abbreviated Journal |
Laterality |
Volume |
20 |
Issue |
4 |
Pages |
483-500 |
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Lateralization in horses, Equus caballus, has been reported at both motor and sensory levels. Here we investigated left- and right-nostril use in 12 jumper horses freely sniffing different emotive stimuli. Results revealed that during sniffing at adrenaline and oestrus mare urine stimuli, horses showed a clear right-nostril bias while just a tendency in the use of the right nostril was observed during sniffing of other odours (food, cotton swab and repellent). Sniffing at adrenaline and urine odours was also accompanied by increasing cardiac activity and behavioural reactivity strengthening the role of the right hemisphere in the analysis of intense emotion and sexual behaviour. |
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Routledge |
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1357-650x |
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doi: 10.1080/1357650X.2015.1005629 |
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Equine Behaviour @ team @ |
Serial |
6208 |
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Author |
Steinhoff-Wagner, J. |
Title |
Coat Clipping of Horses: A Survey |
Type |
Journal Article |
Year |
2019 |
Publication |
Journal of Applied Animal Welfare Science |
Abbreviated Journal |
Journal of Applied Animal Welfare Science |
Volume |
22 |
Issue |
2 |
Pages |
171-187 |
Keywords |
Equine, thermoregulation, shaving, winter pelage removal |
Abstract |
Coat clipping is a common practice in sport horses; however, timing, purpose, technique, and clips vary widely, as do the management and feeding of a clipped horse. The aim of this study was to collect data regarding common clipping practices. A questionnaire was published online in Germany and contained 32 questions. Four hundred ninety-eight people answered at least one question, and 373 individuals (7% male, 93% female; ages 14–59 years) completed all the questions. Clipped horses were predominantly used as sport horses (68%), and they were either clipped immediately before or during the winter season (88%) or year-round (7%). The clipping date was scheduled according to hair length (52%), sweat amount (47%), and drying time (47%). Participants primarily used two clips: the hunter clip and the blanket clip, both without clipping the head (23% each). The majority of the clipped horses wore a blanket day and night (> 90%). Future studies with observations in the field are needed to support survey data in an effort to develop welfare recommendations for clipping practices utilized with horses. |
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Routledge |
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1088-8705 |
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doi: 10.1080/10888705.2018.1454319 |
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Equine Behaviour @ team @ |
Serial |
6613 |
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Title |
R Foundation for Statistical Computing |
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Book Whole |
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2013 |
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R Foundation for Statistical Computing |
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Vienna, Austria |
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Equine Behaviour @ team @ ref80 |
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6295 |
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Author |
Core Development Team, R. |
Title |
R: a language and environment for statistical computing |
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Book Whole |
Year |
2011 |
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R foundation for statistical computing |
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Vienna, Austria |
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Equine Behaviour @ team @ Core Development Team2011 |
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6489 |
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Author |
Collins, G.H.; Petersen, S.L.; Carr, C.A.; Pielstick, L. |
Title |
Testing VHF/GPS Collar Design and Safety in the Study of Free-Roaming Horses |
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Journal Article |
Year |
2014 |
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Plos One |
Abbreviated Journal |
Plos One |
Volume |
9 |
Issue |
9 |
Pages |
e103189 |
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Effective and safe monitoring techniques are needed by U.S. land managers to understand free-roaming horse behavior and habitat use and to aid in making informed management decisions. Global positioning system (GPS) and very high frequency (VHF) radio collars can be used to provide high spatial and temporal resolution information for detecting free-roaming horse movement. GPS and VHF collars are a common tool used in wildlife management, but have rarely been used for free-roaming horse research and monitoring in the United States. The purpose of this study was to evaluate the design, safety, and detachment device on GPS/VHF collars used to collect free-roaming horse location and movement data. Between 2009 and 2010, 28 domestic and feral horses were marked with commercial and custom designed VHF/GPS collars. Individual horses were evaluated for damage caused by the collar placement, and following initial observations, collar design was modified to reduce the potential for injury. After collar modifications, which included the addition of collar length adjustments to both sides of the collar allowing for better alignment of collar and neck shapes, adding foam padding to the custom collars to replicate the commercial collar foam padding, and repositioning the detachment device to reduce wear along the jowl, we observed little to no evidence of collar wear on horses. Neither custom-built nor commercial collars caused injury to study horses, however, most of the custom-built collars failed to collect data. During the evaluation of collar detachment devices, we had an 89% success rate of collar devices detaching correctly. This study showed that free-roaming horses can be safely marked with GPS and/or VHF collars with minimal risk of injury, and that these collars can be a useful tool for monitoring horses without creating a risk to horse health and wellness. |
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Public Library of Science |
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Equine Behaviour @ team @ |
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6209 |
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Author |
Monfardini, E.; Hadj-Bouziane, F.; Meunier, M. |
Title |
Model-Observer Similarity, Error Modeling and Social Learning in Rhesus Macaques |
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Journal Article |
Year |
2014 |
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Plos One |
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Plos One |
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9 |
Issue |
2 |
Pages |
e89825 |
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Monkeys readily learn to discriminate between rewarded and unrewarded items or actions by observing their conspecifics. However, they do not systematically learn from humans. Understanding what makes human-to-monkey transmission of knowledge work or fail could help identify mediators and moderators of social learning that operate regardless of language or culture, and transcend inter-species differences. Do monkeys fail to learn when human models show a behavior too dissimilar from the animals' own, or when they show a faultless performance devoid of error? To address this question, six rhesus macaques trained to find which object within a pair concealed a food reward were successively tested with three models: a familiar conspecific, a 'stimulus-enhancing' human actively drawing the animal's attention to one object of the pair without actually performing the task, and a 'monkey-like' human performing the task in the same way as the monkey model did. Reward was manipulated to ensure that all models showed equal proportions of errors and successes. The 'monkey-like' human model improved the animals' subsequent object discrimination learning as much as a conspecific did, whereas the 'stimulus-enhancing' human model tended on the contrary to retard learning. Modeling errors rather than successes optimized learning from the monkey and 'monkey-like' models, while exacerbating the adverse effect of the 'stimulus-enhancing' model. These findings identify error modeling as a moderator of social learning in monkeys that amplifies the models' influence, whether beneficial or detrimental. By contrast, model-observer similarity in behavior emerged as a mediator of social learning, that is, a prerequisite for a model to work in the first place. The latter finding suggests that, as preverbal infants, macaques need to perceive the model as 'like-me' and that, once this condition is fulfilled, any agent can become an effective model. |
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Equine Behaviour @ team @ |
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6195 |
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