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| Author | Reddon, A.R.; Hurd, P.L. | ||||
| Title | Acting unilaterally: Why do animals with strongly lateralized brains behave differently than those with weakly lateralized brains? | Type | Journal Article | ||
| Year | 2009 | Publication | Bioscience Hypotheses | Abbreviated Journal  |
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| Volume | 2 | Issue | 6 | Pages | 383-387 |
| Keywords | Cerebral lateralization; Individual variation; Personality; Habenula; Dorsal-diencephalic conduction system | ||||
| Abstract | Cerebral lateralization was once thought to be unique to humans, but is now known to be widespread among the vertebrates. Lateralization appears to confer cognitive advantages upon those that possess it. Despite the taxonomic ubiquity and described advantages of lateralization, substantial individual variation exists in all species. Individual variation in cerebral lateralization may be tied to individual variation in behaviour and the selective forces that act to maintain variation in behaviour may also act to maintain variation in lateralization. The mechanisms linking individual variation in the strength of cerebral lateralization to individual variation in behaviour remain obscure. We propose here a general hypothesis which may help to explain this link. We suggest that individuals with strong and weak lateralizations behave differently because of differences in the ability of one hemisphere to inhibit the functions of the other in each type of brain organization. We also suggest a specific mechanism involving the asymmetric epithalamic nucleus, the habenula. We conclude by discussing some predictions and potential tests of our hypothesis. | ||||
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| ISSN | 1756-2392 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5417 | ||
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| Author | Battista E. | ||||
| Title | Il Pony di Esperia | Type | Book Whole | ||
| Year | 2009 | Publication | Il Pony di Esperia | Abbreviated Journal |
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| Publisher | ciociariaturismo | Place of Publication | Ciociaria | Editor | |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5438 | ||
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| Author | Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz | ||||
| Title | Beurteilung von Pferdehaltungen unter Tierschutzgesichtspunkten | Type | Manuscript | ||
| Year | 2009 | Publication | Abbreviated Journal |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5481 | ||
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| Author | Dickens, M.J.; Delehanty, D.J.; Romero, L.M. | ||||
| Title | Stress and translocation: alterations in the stress physiology of translocated birds | Type | Journal Article | ||
| Year | 2009 | Publication | Proceedings of the Royal Society B: Biological Sciences | Abbreviated Journal |
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| Volume | 276 | Issue | 1664 | Pages | 2051-2056 |
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| Abstract | Translocation and reintroduction have become major conservation actions in attempts to create self-sustaining wild populations of threatened species. However, avian translocations have a high failure rate and causes for failure are poorly understood. While ‘stress’ is often cited as an important factor in translocation failure, empirical evidence of physiological stress is lacking. Here we show that experimental translocation leads to changes in the physiological stress response in chukar partridge, Alectoris chukar. We found that capture alone significantly decreased the acute glucocorticoid (corticosterone, CORT) response, but adding exposure to captivity and transport further altered the stress response axis (the hypothalamic–pituitary–adrenal axis) as evident from a decreased sensitivity of the negative feedback system. Animals that were exposed to the entire translocation procedure, in addition to the reduced acute stress response and disrupted negative feedback, had significantly lower baseline CORT concentrations and significantly reduced body weight. These data indicate that translocation alters stress physiology and that chronic stress is potentially a major factor in translocation failure. Under current practices, the restoration of threatened species through translocation may unwittingly depend on the success of chronically stressed individuals. This conclusion emphasizes the need for understanding and alleviating translocation-induced chronic stress in order to use most effectively this important conservation tool. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5582 | ||
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| Author | Goodson, J.L.; Schrock, S.E.; Klatt, J.D.; Kabelik, D.; Kingsbury, M.A. | ||||
| Title | Mesotocin and Nonapeptide Receptors Promote Estrildid Flocking Behavior | Type | Journal Article | ||
| Year | 2009 | Publication | Science | Abbreviated Journal |
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| Volume | 325 | Issue | 5942 | Pages | 862-866 |
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| Abstract | Proximate neural mechanisms that influence preferences for groups of a given size are almost wholly unknown. In the highly gregarious zebra finch (Estrildidae: Taeniopygia guttata), blockade of nonapeptide receptors by an oxytocin (OT) antagonist significantly reduced time spent with large groups and familiar social partners independent of time spent in social contact. Opposing effects were produced by central infusions of mesotocin (MT, avian homolog of OT). Most drug effects appeared to be female-specific. Across five estrildid finch species, species-typical group size correlates with nonapeptide receptor distributions in the lateral septum, and sociality in female zebra finches was reduced by OT antagonist infusions into the septum but not a control area. We propose that titration of sociality by MT represents a phylogenetically deep framework for the evolution of OT’s female-specific roles in pair bonding and maternal functions. | ||||
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| Notes | 10.1126/science.1174929 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 5646 | ||
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| Author | Hoffmann, G.; Bockisch, F.-J.; Kreimeier, P. | ||||
| Title | Einfluss des Haltungssystems auf die Bewegungsaktivität und Stressbelastung bei Pferden in Auslaufhaltungssystemen | Type | Journal Article | ||
| Year | 2009 | Publication | Landbauforschung – vTI Agriculture and Forestry Research | Abbreviated Journal |
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| Volume | 2 | Issue | 59 | Pages | 105-112 |
| Keywords | Bewegung, Cortisol, Herzfrequenzvariabilität (HFV), Pferd, Verhalten [movement, cortisol, heart rate variability (HRV), horse, behaviour] | ||||
| Abstract | Frühere Untersuchungen haben gezeigt, dass die tägliche Bewegung für die Gesunderhaltung der Pferde notwendig ist. Inwieweit sich jedoch unterschiedliche Bewegungsangebote auf das Stress-und Bewegungsverhalten von Pferden in einer Gruppen-Auslaufhaltung auswirken und ob der Bewegungsbedarf der Pferde durch eine Auslaufhaltung ohne zusätzliche Bewegung gedeckt werden kann, ist der Literatur bisher nicht zu entnehmen. Daher sollte in der nachfolgend beschriebenen Untersuchung der Frage nachgegangen werden, welche Auswirkungen verschiedene Bewegungsangebote auf die Bewegungsaktivität von Pferden in Gruppen-Auslaufhaltungen haben und ob diese das Wohlbefinden der Tiere beeinflussen. Letzteres wurde durch Messung der Herzfrequenzvariabilität und Bestimmung von Cortisolmetaboliten im Pferdekot erfasst und die Bewegungsaktivität der Pferde wurde mit ALT-Pedometern bestimmt. Verglichen wurden eine Einzel-und Gruppenhaltung mit jeweils angrenzendem Auslauf, aber ohne eine zusätzliche Bewegung der Pferde außerhalb des Stalls. In drei weiteren Varianten der Gruppenhaltung bekamen die Pferde täglichen Auslauf auf einer unbegrünten Koppel, auf einer Weide oder durch gezielte Bewegung in einer Führanlage. Die Bewegungsaktivität konnte durch die zusätzliche Bewegung in Form von Weide oder Führanlage signifikant gesteigert werden. Ein zusätzliches Bewegungsangebot führte bei den Pferden zu einer Abnahme der Stressbelastung und sollte auch den Pferden ermöglicht werden, die in einer Gruppenhaltung gehalten werden, um ihre physische und psychische Gesundheit zu erhalten. [Former studies confirm the necessity of daily movement for the health of a horse. But so far no description could be found in the literature how different movement offerings impact the stress and movement behaviour of horses in group husbandries with close-by discharge. The same holds true for the question whether a discharge husbandry system can meet the movement requirements of horses if there isn�t any additional movement possibility. The aim of the present study was to examine different movement offerings, their effects on the movement activities of horses in a group horse husbandry with close-by discharge and the impact of the movement on the wellbeing of the animals. The heart rate variability and the concentration of the cortisol metabolites in the horse excrement were analyzed for detecting the wellbeing of the horses. Additionally ALT-Pedometers were used for determining the movement activity. A single and a group husbandry system, each with closeby discharge, were compared when horses had no additional movement outside the stable. In three further variants the group husbandry was supplemented with daily time on a non-grassy pasture land, a pasture or in a horse walker. Pasture or horse walker increased movement activity significantly. Nevertheless an additional movement offering resulted in a lower stress load of the horses and should also be allowed to horses in group husbandry systems to ensure the horse�s physical and mental health.] |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5661 | ||
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| Author | Krueger,K.; Flauger, B. | ||||
| Title | Social and individual olfaction through horse faeces (Equus caballus) | Type | Book Chapter | ||
| Year | 2009 | Publication | Program of the 4. Thementagung der Ethologischen Gesellschaft, Februar 12 -14, 2009. | Abbreviated Journal |
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| Volume | Issue | Pages | 23 | ||
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| Publisher | Dpz. | Place of Publication | Göttingen | Editor | Kappeler,P.M. ; Schwibbe, M. |
| Language | German | Summary Language | Original Title | ||
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| Call Number | Equine Behaviour @ team @ | Serial | 5716 | ||
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| Author | Krueger, K.; Flauger, B. | ||||
| Title | Horses (Equus caballus) show respect and trust in their owners | Type | Book Chapter | ||
| Year | 2009 | Publication | Program of the 4. Thementagung der Ethologischen Gesellschaft, Februar 12 -14, 2009. | Abbreviated Journal |
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| Volume | Issue | Pages | 32 | ||
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| Publisher | Dpz. | Place of Publication | Göttingen | Editor | Kappeler, P.M.; Schwibbe, M. |
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| Call Number | Equine Behaviour @ team @ Krueger2009 | Serial | 5717 | ||
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| Author | Flauger, B.; Krueger, K.; Gerhards, H.; Moestl, E. | ||||
| Title | Measurement of glucocorticoid metabolites in horse faeces: the validation of different group specific enzymeimmunoassays and extraction methods. | Type | Book Chapter | ||
| Year | 2009 | Publication | Proceeding of the 102. Annual meeting of the Deutsche Zoologische Gesellschaft (DZG). | Abbreviated Journal |
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| Volume | Issue | Pages | 166 | ||
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| Publisher | Dt. Zoologische Ges | Place of Publication | München | Editor | Cremer,S.;Schrempf,A.;Heinze,J. |
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| ISSN | ISBN | 978-3-00-028368-0 | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5718 | ||
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| Author | Fabritius, C. | ||||
| Title | Sozialstruktur einer Herde Islandpferde bei Veränderung der Gruppenzusammenstellung | Type | Manuscript | ||
| Year | 2009 | Publication | Abbreviated Journal |
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| Abstract | Die Domestikation des Pferdes begann wahrscheinlich etwa 5500 v. Chr. in Südosteuropa. In Mitteleuropa traten circa 3000 v. Chr. die ersten Hauspferde auf. Grundsätzlich wird davon ausgegangen, dass sich die Ansprüche des Pferdes hinsichtlich der Lebensbedingungen, welche sich im Laufe der Evolution über Millionen von Jahren entwickelt haben, in der Obhut des Menschen nicht wesentlich geändert haben. Für Pferde typisch ist das Leben im Sozialverband, der Herde (Zeitler-Feicht 2008). Diese wird auch in den Leitlinien der Sachverständigengruppe tierschutzgerechte Pferdehaltung (10. November 1995) empfohlen, sofern es nicht durch zu häufigen Wechsel im Bestand zu einem Übermaß an Stress und agonistischen Aktionen kommt. Ziel der Arbeit war es, anhand eines nach der Literatur erstellten Ethogramms des Sozialverhaltens des Pferdes, herauszufinden, inwieweit Änderungen der Gruppenstruktur die sozialen Beziehungen beeinflussten. Die Fragestellung bezog sich auf eine Herde in Offenstallhaltung. Um die eventuellen Veränderungen der sozialen Interaktionen zu untersuchen, wurde erst die vorhandene Gruppenstruktur der Herde festgestellt. Danach wurde ein Individuum aus der Herde entfernt und ein anderes dazugestellt. Anschließend wurde die Gesamtgruppe in zwei Untergruppen geteilt und nach einem gewissen Zeitraum erneut zusammengeführt. Dabei wurden jeweils die Interaktionen der Pferde anhand des Ethogramms beobachtet, aufgezeichnet und protokolliert. Untersuchungsgegenstand war eine Herde Islandpferde, die in einer Ausgangsgruppe von 16 Tieren gehalten wurde. Die Beschreibung einer sozialen Ordnung im Allgemeinen und einer Rangordnung im Besonderen wird in vielen Studien ausschließlich auf der Basis der Beobachtung und Bewertung offensiv aggressiver Verhaltenselemente durchgeführt. Aggressives Verhalten muss hingegen im Gegensatz zu Verhaltensweisen, die die Anerkennung des sozialen Status des anderen Pferdes bedeuten, wie Abwenden oder Meiden, nicht notwendigerweise ein Anzeichen von Dominanz über ein anderes Tier bedeuten (Van Hoof u. Wensing 1987, Schilder 1988). Ein weiterer Aspekt dieser Arbeit sollte sein, eine Möglichkeit zu finden, die Sozialstruktur auch auf der Grundlage defensiver und soziopositiver Verhaltenselemente zu definieren. |
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| Corporate Author | Thesis | Ph.D. thesis | |||
| Publisher | Place of Publication | Hannover | Editor | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5727 | ||
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