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Author Peham, C.; Licka, T.; Schobesberger, H.; Meschan, E. url  openurl
  Title Influence of the rider on the variability of the equine gait Type Journal Article
  Year 2004 Publication Human Movement Science Abbreviated Journal European Workshop on Movement Science  
  Volume 23 Issue (up) 5 Pages 663-671  
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  Abstract The aim of this study was to show that the motion pattern of a well-ridden horse varies less than the motion pattern of an unridden horse. In order to do so, we recorded the motion of two markers, one attached to the dorsal spinous processus of lumbar vertebra L4, the other to the right fore hoof. In total, we measured 21 horses in trot, ridden and unridden, with a fitting and with a non-fitting saddle. After breaking down the entire time series of the three-dimensional motion of the markers into their respective motion cycles, we computed a measure of motion pattern variability for the motion as well as for the derivatives (velocity and acceleration) along each of the three principal dimensions. Two of six variables (velocity and acceleration in the forward direction) displayed a significant discrimination between the ridden and the unridden case, and demonstrated the beneficial effect of a rider on the horse's motion pattern variability. Saddle fit was shown to have also an influence on motion variability: variability of two variables (velocity and of acceleration in forward direction) was significantly lower with a fitting saddle compared to a non-fitting saddle, a third variable (acceleration in the transversal direction) showed a significant difference also. This new method offers an objective evaluation of saddle fit, and a sensitive assessment of the quality of the rider in the moving horse.  
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  Call Number Equine Behaviour @ team @ Serial 3670  
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Author Burden, F.; Thiemann, A. url  doi
openurl 
  Title Donkeys Are Different Type Journal Article
  Year 2015 Publication Journal of Equine Veterinary Science Abbreviated Journal Proceedings of the 2015 Equine Science Society Symposium  
  Volume 35 Issue (up) 5 Pages 376-382  
  Keywords Donkey; Ass; Equid; Mule  
  Abstract As a unique species of equine, the donkey has certain specific variations from the horse. This review highlights the origins of the donkey and how this impacts on its behavior, physiology, and propensity to disease. The donkey is less of a flight animal and has been used by humans for pack and draught work, in areas where their ability to survive poorer diets, and transboundary disease while masking overt signs of pain and distress has made them indispensable to human livelihoods. When living as a companion animal, however, the donkey easily accumulates adipose tissue, and this may create a metabolically compromised individual prone to diseases of excess such as laminitis and hyperlipemia. They show anatomic variations from the horse especially in the hoof, upper airway, and their conformation. Variations in physiology lead to differences in the metabolism and distribution of many drugs. With over 44 million donkeys worldwide, it is important that veterinarians have the ability to understand and treat this equid effectively.  
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  ISSN 0737-0806 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6541  
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Author Real, L.A. openurl 
  Title Animal choice behavior and the evolution of cognitive architecture Type Journal Article
  Year 1991 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 253 Issue (up) 5023 Pages 980-986  
  Keywords Animals; Bees/genetics/*physiology; Biomechanics; *Choice Behavior; *Cognition; *Evolution; Mathematics; Models, Genetic; Probability  
  Abstract Animals process sensory information according to specific computational rules and, subsequently, form representations of their environments that form the basis for decisions and choices. The specific computational rules used by organisms will often be evolutionarily adaptive by generating higher probabilities of survival, reproduction, and resource acquisition. Experiments with enclosed colonies of bumblebees constrained to foraging on artificial flowers suggest that the bumblebee's cognitive architecture is designed to efficiently exploit floral resources from spatially structured environments given limits on memory and the neuronal processing of information. A non-linear relationship between the biomechanics of nectar extraction and rates of net energetic gain by individual bees may account for sensitivities to both the arithmetic mean and variance in reward distributions in flowers. Heuristic rules that lead to efficient resource exploitation may also lead to subjective misperception of likelihoods. Subjective probability formation may then be viewed as a problem in pattern recognition subject to specific sampling schemes and memory constraints.  
  Address Department of Biology, University of North Carolina, Chapel Hill 27599-3280  
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  ISSN 0036-8075 ISBN Medium  
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  Notes PMID:1887231 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2846  
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Author McLaren, B.E.; Peterson, R.O. url  doi
openurl 
  Title Wolves, Moose, and Tree Rings on Isle Royale Type Journal Article
  Year 1994 Publication Science Abbreviated Journal Science  
  Volume 266 Issue (up) 5190 Pages 1555-1558  
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  Abstract Investigation of tree growth in Isle Royale National Park in Michigan revealed the influence of herbivores and carnivores on plants in an intimately linked food chain. Plant growth rates were regulated by cycles in animal density and responded to annual changes in primary productivity only when released from herbivory by wolf predation. Isle Royale's dendrochronology complements a rich literature on food chain control in aquatic systems, which often supports a trophic cascade model. This study provides evidence of top-down control in a forested ecosystem.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4995  
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Author Packer, C; Heinsohn, R. doi  openurl
  Title Response:Lioness leadership Type Journal Article
  Year 1996 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 271 Issue (up) 5253 Pages 1215-1216  
  Keywords Animals; *Behavior; Animal; Cooperative Behavior; Female; Lions/*psychology; Territoriality  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Jahn1996 Serial 2072  
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Author Gary C. Jahn; Craig Packer,Robert Heinsohn openurl 
  Title Lioness leadership Type Journal Article
  Year 1996 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 271 Issue (up) 5253 Pages 1216-1219  
  Keywords Animals; *Behavior; Animal; Cooperative Behavior; Female; Lions/*psychology; Territoriality  
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  ISSN 0036-8075 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Jahn1996 Serial 2073  
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Author Williams, N. openurl 
  Title Evolutionary psychologists look for roots of cognition Type
  Year 1997 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 275 Issue (up) 5296 Pages 29-30  
  Keywords Animals; *Behavior, Animal; Birds; *Cognition; *Evolution; Female; Humans; Macaca mulatta/psychology; Male; Memory; Reward; *Social Sciences  
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  ISSN 0036-8075 ISBN Medium  
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  Notes PMID:8999531 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2845  
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Author Pennisi, E. openurl 
  Title Schizophrenia clues from monkeys Type
  Year 1997 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 277 Issue (up) 5328 Pages 900  
  Keywords Animals; Antipsychotic Agents/pharmacology; Behavior, Animal/drug effects; *Cercopithecus aethiops; Clozapine/pharmacology; Cognition/drug effects; *Disease Models, Animal; Dopamine/*metabolism; Excitatory Amino Acid Antagonists/pharmacology; Memory/drug effects; Phencyclidine/*pharmacology; Prefrontal Cortex/*metabolism; Schizophrenia/chemically induced/drug therapy/*metabolism; Schizophrenic Psychology  
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  ISSN 0036-8075 ISBN Medium  
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  Notes PMID:9281070 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2844  
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Author Brannon, E.M.; Terrace, H.S. openurl 
  Title Ordering of the numerosities 1 to 9 by monkeys Type Journal Article
  Year 1998 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 282 Issue (up) 5389 Pages 746-749  
  Keywords Animals; *Discrimination (Psychology); Macaca mulatta/*psychology; *Mathematics; *Mental Processes  
  Abstract A fundamental question in cognitive science is whether animals can represent numerosity (a property of a stimulus that is defined by the number of discriminable elements it contains) and use numerical representations computationally. Here, it was shown that rhesus monkeys represent the numerosity of visual stimuli and detect their ordinal disparity. Two monkeys were first trained to respond to exemplars of the numerosities 1 to 4 in an ascending numerical order (1 --> 2 --> 3 --> 4). As a control for non-numerical cues, exemplars were varied with respect to size, shape, and color. The monkeys were later tested, without reward, on their ability to order stimulus pairs composed of the novel numerosities 5 to 9. Both monkeys responded in an ascending order to the novel numerosities. These results show that rhesus monkeys represent the numerosities 1 to 9 on an ordinal scale.  
  Address Department of Psychology, Columbia University, New York, NY 10027, USA. liz@psych.columbia.edu  
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  Notes PMID:9784133 Approved no  
  Call Number refbase @ user @ Serial 606  
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Author Pinker, S. url  openurl
  Title COGNITION:Enhanced: Out of the Minds of Babes Type Journal Article
  Year 1999 Publication Science Abbreviated Journal Science  
  Volume 283 Issue (up) 5398 Pages 40-41  
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  Notes 10.1126/science.283.5398.40 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2956  
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