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| Author | Klüwer, C. | ||||
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Zur Arbeit mit dem Pferd in Psychiatrie und Psychotherapie. Versuch einer theoretischen Besinnung auf grundlegende Möglichkeiten zwischen Mensch und Pferd. | Type | Book Chapter | ||
| Year | 2005 | Publication | Die Arbeit mit dem Pferd in Psychiatrie und Psychotherapie | Abbreviated Journal | |
| Volume | Issue | Pages | 5 | ||
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| Publisher | FN-Verlag | Place of Publication | Warendorf | Editor | DKThR |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5065 | ||
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| Author | Carruthers, P. | ||||
| Title |
Why the question of animal consciousness might not matter very much | Type | Journal Article | ||
| Year | 2005 | Publication | Philosophical Psychology | Abbreviated Journal | |
| Volume | 18 | Issue | Pages | 83-102 | |
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 3510 | ||
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| Author | Skov-Rackette, S.I.; Shettleworth, S.J. | ||||
| Title |
What do rats learn about the geometry of object arrays? Tests with exploratory behavior | Type | Journal Article | ||
| Year | 2005 | Publication | Journal of experimental psychology. Animal behavior processes | Abbreviated Journal | J Exp Psychol Anim Behav Process |
| Volume | 31 | Issue | 2 | Pages | 142-154 |
| Keywords | Animals; Behavior, Animal; *Discrimination Learning; *Exploratory Behavior; Female; *Form Perception; Habituation, Psychophysiologic; Male; Rats; Rats, Long-Evans | ||||
| Abstract | Six experiments using habituation of exploratory behavior tested whether disoriented rats foraging in a large arena encode the shapes of arrays of objects. Rats did not respond to changes in position of a single object, but they responded to a change in object color and to a change in position of 1 object in a square array, as in previous research (e.g., C. Thinus-Blanc et al., 1987). Rats also responded to an expansion of a square array, suggesting that they encoded sets of interobject distances rather than overall shape. In Experiments 4-6, rats did not respond to changes in sense of a triangular array that maintained interobject distances and angles. Shapes of object arrays are encoded differently from shapes of enclosures. | ||||
| Address | Department of Psychology, University of Toronto, Toronto, ON M5S 3G3, Canada. shannon.skov.rackette@utoronto.ca | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0097-7403 | ISBN | Medium | ||
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| Notes | PMID:15839772 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 363 | ||
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| Author | Ottoni, E.B.; de Resende, B.D.; Izar, P. | ||||
| Title |
Watching the best nutcrackers: what capuchin monkeys (Cebus apella) know about others' tool-using skills | Type | Journal Article | ||
| Year | 2005 | Publication | Animal cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 8 | Issue | 4 | Pages | 215-219 |
| Keywords | Animals; *Association Learning; Cebus/*psychology; *Feeding Behavior; Female; Male; Nuts; *Problem Solving | ||||
| Abstract | The present work is part of a decade-long study on the spontaneous use of stones for cracking hard-shelled nuts by a semi-free-ranging group of brown capuchin monkeys (Cebus apella). Nutcracking events are frequently watched by other individuals--usually younger, less proficient, and that are well tolerated to the point of some scrounging being allowed by the nutcracker. Here we report findings showing that the choice of observational targets is an active, non-random process, and that observers seem to have some understanding of the relative proficiency of their group mates, preferentially watching the more skilled nutcrackers, which enhances not only scrounging payoffs, but also social learning opportunities. | ||||
| Address | Laboratory of Cognitive Ethology, Department of Experimental Psychology, Institute of Psychology, University of Sao Paulo, Brazil. ebottoni@usp.br | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1435-9448 | ISBN | Medium | ||
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| Notes | PMID:15719240 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 355 | ||
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| Author | Earley, R.L.; Druen, M.; Alan Dugatkin, L. | ||||
| Title |
Watching fights does not alter a bystander's response towards naive conspecifics in male green swordtail fish, Xiphophorus helleri | Type | Journal Article | ||
| Year | 2005 | Publication | Animal Behaviour. | Abbreviated Journal | Anim. Behav. |
| Volume | 69 | Issue | 5 | Pages | 1139-1145 |
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| Abstract | Bystanders are capable of extracting cues from signalling interactions between others and appear to use information gained via eavesdropping when confronted with the watched individuals. A question that has gained little attention is whether observing fights affects bystander behaviour outside the context of interacting with the watched individuals. Our aim was to determine whether watching fights elicits general changes in bystander aggression levels in Xiphophorus helleri. We manipulated the bystanders' ability to witness encounters using clear, one-way-mirror and opaque partitions. After watching (or not watching) an initial contest, the bystanders were pitted against naive conspecifics instead of the animals they had seen fight. Observing fights did not alter the bystanders' propensity to initiate aggression, escalate, or win against naive individuals, indicating that bystanders do not experience general changes in aggressive behaviour after watching a fight. Earlier work in this species, however, has shown that bystanders respond in predictable ways to individuals they have witnessed winning or losing a fight. Taken together, these data support the notion that bystanders consistently modify their behaviour towards previously watched winners or losers in response to information gained via eavesdropping. We discuss our results in light of some recent work on the behavioural and endocrinological responses triggered by watching fights and suggest that comparative approaches to understanding networking phenomena may be productive. | ||||
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 394 | ||
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| Author | Digweed, Shannon M.; Fedigan, Linda M.; Rendall, Drew | ||||
| Title |
Variable specificity in the anti-predator vocalizations and behaviour of the white-faced capuchin, Cebus capucinus | Type | Journal Article | ||
| Year | 2005 | Publication | Behaviour | Abbreviated Journal | Behaviour |
| Volume | 142 | Issue | 8 | Pages | 997-1021 |
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| Abstract | (Accepted: 23 June 2005) Summary Much research in animal communication is aimed at understanding the functional design features of animal vocal signals. Our detailed analyses of the vocalizations and behavioural responses elicited in white-faced capuchins by predators and other disturbances point to two call variants that differ modestly in their acoustic structure and that are accompanied by functionally distinct behavioural responses. The first variant is given exclusively to avian predators and is almost invariably accompanied by the monkeys immediate descent from the treetops where it is most vulnerable; therefore, we label this call variant the aerial predator alarm?. The second variant, that differs only slightly but noticeably from the first, is given to a wide range of snakes and mammals, including a range of species that represent no predatory threat to the monkeys. This second call is also associated with more variable responses from calling monkeys, from delayed retreat from the source of disturbance, to active approach, inspection, and sometimes mobbing of the animal involved. We therefore label this variant more generally as an “alerting call”. Although some other primate species show a more diverse system of anti-predator calls, and the capuchins themselves may yet be found to produce a greater variety of calls, a system of two call variants with varying degrees of predator specificity and behavioural response is not uncommon among primates and appears functionally appropriate for capuchins. The basic structure of the alerting call allows conspecific listeners to localize the caller and the source of disturbance readily, thereby allowing listeners to approach and assist in mobbing in cases where the disturbance warrants it, or to avoid the area in cases where the disturbance is identified as a predatory threat. Conversely, the aerial predator alarm is inherently less localizable and therefore conveys the |
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 547 | ||
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| Author | Thompson, J.A.; Brown, S.E. 2nd; Riddle, W.T.; Seahorn, J.C.; Cohen, N.D. | ||||
| Title |
Use of a Bayesian risk-mapping technique to estimate spatial risks for mare reproductive loss syndrome in Kentucky | Type | Journal Article | ||
| Year | 2005 | Publication | American Journal of Veterinary Research | Abbreviated Journal | Am J Vet Res |
| Volume | 66 | Issue | 1 | Pages | 17-20 |
| Keywords | Abortion, Veterinary/*epidemiology; Animals; Bayes Theorem; Female; Geography; Horse Diseases/*epidemiology; Horses; Kentucky/epidemiology; Models, Statistical; Pregnancy; Risk Factors | ||||
| Abstract | OBJECTIVE: To estimate spatial risks associated with mare reproductive loss syndrome (MRLS) during 2001 among horses in a specific study population and partition the herd effects into those attributable to herd location and those that were spatially random and likely attributable to herd management. Animals-Pregnant broodmares from 62 farms in 7 counties in central Kentucky. PROCEDURE: Veterinarians provided the 2001 abortion incidence proportions for each farm included in the study. Farms were georeferenced and data were analyzed by use of a fully Bayesian risk-mapping technique. RESULTS: Large farm-to-farm variation in MRLS incidence proportions was identified. The farm-to-farm variation was largely attributed to spatial location rather than to spatially random herd effects. CONCLUSIONS AND CLINICAL RELEVANCE: Results indicate that there are considerable data to support an ecologic cause and potential ecologic risk factors for MRLS. Veterinary practitioners with more detailed knowledge of the ecology in the 7 counties in Kentucky that were investigated may provide additional data that would assist in the deduction of the causal factor of MRLS via informal geographic information systems analyses and suggest factors for inclusion in further investigations. | ||||
| Address | Department of Large Animal Medicine and Surgery, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843-4475, USA. USA | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0002-9645 | ISBN | Medium | ||
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| Notes | PMID:15691030 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2630 | ||
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| Author | Stürmer, K. | ||||
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Untersuchungen zum Einfluss der Fütterung auf den Säure-Basen-Haushalt bei Ponys | Type | Manuscript | ||
| Year | 2005 | Publication | Abbreviated Journal | ||
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| Abstract | In der praktischen Pferdefütterung kommen regelmäßig Substanzen zum Einsatz, die einen erheblichen Einfluss auf den Säure-Basen-Haushalt ausüben. Andererseits können Manipulationen des Säure-Basen-Haushaltes in der Diätetik erwünscht sein, z.B. bei Harnsteinen oder hyperkaliämischer periodischer Paralyse. Verschiebungen im Säure- Basen-Gleichgewicht treten – unabhängig von der Fütterung – außerdem bei starker körperlicher Aktivität auf, eine eventuelle Prophylaxe durch die Ernährung wird ebenfalls diskutiert. Der Einfluss der Fütterung auf den Säure-Basen-Haushalt ist beim Pferd bisher nur wenig und nicht systematisch untersucht, während sich viele Arbeiten mit dem Effekt körperlicher Belastung beschäftigen. Analogieschlüsse zu anderen Spezies müssen äußerst vorsichtig betrachtet werden, da die Absorption von am Säure- Basen-Haushalt beteiligten Substanzen beim Pferd Unterschiede zu anderen Spezies aufweist (Meyer, 1982). In der vorliegenden Untersuchung sollte daher der Effekt von verschiedenen Chloriden (Natriumchlorid, Kalziumchlorid, Ammoniumchlorid) auf den Säure-Basen-Haushalt bei Ponys geprüft werden. In den ersten Versuchsdurchgängen wurden für Kleinpferde im Erhaltungsstoffwechsel für diesen Zweck Rationen mit sehr hohen Heuanteilen verwendet. Trotz hoher Dosen des bei verschiedenen Spezies stark säuernden Ammoniumchlorids traten bei den Ponys nur relativ kleine Effekte auf. Bei der weiteren Durchsicht des Schrifttums fiel auf, dass Einzelbeobachtungen zu stark säuernden Effekten nur bei Rationen mit hohem Anteil an Kraftfutter und geringem Anteil an Rauhfutter auftraten. Daher wurde der Effekt von Ammoniumchlorid auf einer stark kraftfutterhaltigen Ration nochmals überprüft. |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5162 | ||
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| Author | J. David Smith; David A. Washburn | ||||
| Title |
Uncertainty Monitoring and Metacognition by Animals | Type | Journal Article | ||
| Year | 2005 | Publication | Current Directions in Psychological Science | Abbreviated Journal | Curr. Dir. Psychol. Sci. |
| Volume | 14 | Issue | Pages | 19-24 | |
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| Call Number | refbase @ user @ | Serial | 3511 | ||
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| Author | Parrish, J. K.; Viscido, S. V. | ||||
| Title |
Traffic rules of fish schools: A review of agent-based approaches. | Type | Book Chapter | ||
| Year | 2005 | Publication | Self-organisation and the evolution of social behaviour. | Abbreviated Journal | |
| Volume | Issue | Pages | 50-80 | ||
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| Publisher | Cambridge University Press | Place of Publication | Cambridge | Editor | C. K. Hemelrijk |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5419 | ||
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