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Author Brooks, C.J.; Harris, S. url  doi
openurl 
  Title Directed movement and orientation across a large natural landscape by zebras, Equus burchelli antiquorum Type Journal Article
  Year 2008 Publication Animal Behaviour Abbreviated Journal Anim. Behav.  
  Volume 76 Issue 2 Pages 277-285  
  Keywords correlated random walk; directed movement; Equus burchelli antiquorum; Gps; movement path; orientation; spatial memory; spatial scale; zebra  
  Abstract We investigated how plains zebras moved across a large natural landscape by analysing the movement paths of nine zebra mares foraging out from spatially confined waterholes during the dry season in the Makgadikgadi Pans National Park, Botswana. Since it was essential to investigate directed movement over a range of spatial scales to determine the correct movement behaviour and strategy, we used Nams's scaling test for oriented movement. Zebras followed directed movement paths in the lower to medium spatial scales (10 m–3.7 km) and above their visual, and possibly olfactory, range. The spatial scale of directed movement suggests that zebras had a well-defined spatial awareness and cognitive ability. Seven zebras used directed movement paths, but the remaining two followed paths not significantly different to a correlated random walk (CRW). At large spatial scales (>3 km) no distinct movement pattern could be identified and paths could not be distinguished from a CRW. Foraging strategy affected the extent of directed movement: zebras with a confined dispersion of grazing patches around the central place directed their movements over a longer distance. Zebras may extend the distance at which they can direct their movement after improving their knowledge of the local environment.  
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  ISSN 0003-3472 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6148  
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Author Webster, M.M.; Laland, K.N. url  doi
openurl 
  Title Social learning strategies and predation risk: minnows copy only when using private information would be costly Type Journal Article
  Year 2008 Publication Proc Biol Sci Abbreviated Journal Proc. R. Soc. Lond. B  
  Volume 275 Issue 1653 Pages 2869-2876  
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  Abstract Animals can acquire information from the environment privately, by sampling it directly, or socially, through learning from others. Generally, private information is more accurate, but expensive to acquire, while social information is cheaper but less reliable. Accordingly, the 'costly information hypothesis' predicts that individuals will use private information when the costs associated with doing so are low, but that they should increasingly use social information as the costs of using private information rise. While consistent with considerable data, this theory has yet to be directly tested in a satisfactory manner. We tested this hypothesis by giving minnows (Phoxinus phoxinus) a choice between socially demonstrated and non-demonstrated prey patches under conditions of low, indirect and high simulated predation risk. Subjects had no experience (experiment 1) or prior private information that conflicted with the social information provided by the demonstrators (experiment 2). In both experiments, subjects spent more time in the demonstrated patch than in the non-demonstrated patch, and in experiment 1 made fewer switches between patches, when risk was high compared with when it was low. These findings are consistent with the predictions of the costly information hypothesis, and imply that minnows adopt a 'copy-when-asocial-learning-is-costly' learning strategy.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6196  
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Author Hoppitt, W.; Laland, K.N. url  doi
openurl 
  Title Social processes influencing learning in animals: a review of the evidence Type Journal Article
  Year 2008 Publication Adv Study Behav Abbreviated Journal  
  Volume 38 Issue Pages 105-165  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Hoppitt2008 Serial 6260  
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Author Langbein, J.; Siebert, K.; Nuernberg, G. url  doi
openurl 
  Title Concurrent recall of serially learned visual discrimination problems in dwarf goats (Capra hircus) Type Journal Article
  Year 2008 Publication Behav Proc Abbreviated Journal  
  Volume 79 Issue Pages  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Langbein2008 Serial 6363  
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Author Dugnol, B.; Fernández, C.; Galiano, G.; Velasco, J. url  doi
openurl 
  Title On a chirplet transform-based method applied to separating and counting wolf howls Type Journal Article
  Year 2008 Publication Signal Process Abbreviated Journal  
  Volume 88 Issue Pages  
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  Call Number Equine Behaviour @ team @ Dugnol2008 Serial 6466  
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Author Richards, D.G.; Wiley, R.H. url  doi
openurl 
  Title Reverberations and Amplitude Fluctuations in the Propagation of Sound in a Forest: Implications for Animal Communication Type Journal Article
  Year 2008 Publication Am Nat Abbreviated Journal  
  Volume 115 Issue Pages  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Richards2008 Serial 6485  
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Author Charif, R.A.; Waack, A.M.; Strickman, L.M. openurl 
  Title Raven Pro 1.3 User's Manual Type Book Whole
  Year 2008 Publication Abbreviated Journal  
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  Publisher Cornell Laboratory of Ornithology Place of Publication Ithaca, New York Editor  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Charif2008 Serial 6488  
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Author Sueur, J.; Aubin, T.; Simonis, C. url  doi
openurl 
  Title Seewave: a free modular tool for sound analysis and synthesis Type Journal Article
  Year 2008 Publication Bioacoustics Abbreviated Journal  
  Volume 18 Issue Pages  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Sueur2008 Serial 6490  
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Author Krösbacher, A. E. openurl 
  Title Das Arabische Vollblut: Eine kontrovers diskutierte Rasse: Was steckt wirklich hinter der Zucht dieser edlen Pferde? Type Manuscript
  Year 2008 Publication Abbreviated Journal  
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  Corporate Author Thesis Bachelor's thesis  
  Publisher University for Veterinarian Medicine Vienna Place of Publication Vienna Editor  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6544  
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Author Visser, E.K.; Ellis, A.D.; Van Reenen, C.G. url  doi
openurl 
  Title The effect of two different housing conditions on the welfare of young horses stabled for the first time Type Journal Article
  Year 2008 Publication Applied Animal Behaviour Science Abbreviated Journal  
  Volume 114 Issue 3 Pages 521-533  
  Keywords Horse; Welfare; Stabling; Housing; HPA axis; Novel Object test  
  Abstract The effect of stabling for the first time on the behaviour and welfare of young and naïve horses has not yet been studied in detail. In this study we examined the effect of two typical housing systems on their subsequent behavioural and physiological responses upon first time stabling. Thirty-six 2-year-old Dutch warmbloods, 18 geldings and 18 mares were included in the study. Half of the horses were stabled in individual stables (10.5m2) and the other half in pair housing (48m2 for two horses). The study lasted 12 weeks. At the end of the study the physiological and temperamental responses of the horses on the different treatments was tested using a CRF challenge test (to test the HPA-axis function) and a Novel Object test (to test temperamental differences) respectively. Especially in the first week after stabling pair housed horses spent more time eating whereas individually housed horses spent more time either standing vigilant or sleeping. Stress-related behaviours like neighing, pawing, nibbling and snorting were all displayed significantly more frequently in the individually housed horses (P<0.01). At the end of the study 67% of the individually housed horses was seen performing one or more stereotypies (P<0.01). The cortisol response and ACTH response on the CRF challenge test were lower for horses in the individually housed boxes. It is suggested that this depression in socially isolated animals is caused by a desensitisation of the HPA axis in response to stress-induced elevations in ACTH and cortisol. In general there was no effect of the treatment on the reactivity of the horses during the Novel Object test. However, there were significant relations between the responses of horses in the Novel Object test and in the stable environment. It is concluded that sudden isolated stabling is stressful to young and naïve horses, resulting in a high prevalence of stereotypies and abnormal behaviours. This study also provided some support for the notion that social stress in horses may be associated with a blunted adrenocortical response to CRF challenge. The finding that responses of horses to a behavioural test are correlated with home environment behaviours suggests that individual horses exhibit consistent behavioural traits across different contexts, and opens the possibility of using behavioural tests in horses to predict more general underlying behavioural characteristics.  
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  ISSN 0168-1591 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6630  
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