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Author |
Szabó, L.; Heltai, M.; Szucs, E.; Lanszki, J.; Lehoczki, R. |
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Expansion range of the golden jackal in Hungary between 1997 and 2006 |
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2009 |
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Mammalia |
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73 |
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Equine Behaviour @ team @ Szabó2009 |
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6461 |
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Author |
Boersma, P.; Weenink, D. |
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Title |
Praat: doing phonetics by computer |
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2009 |
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Equine Behaviour @ team @ Boersma2009 |
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6496 |
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Author |
Basile, M.; Boivin, S.; Boutin, A.; Blois-Heulin, C.; Hausberger, M.; Lemasson, A. |
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Title |
Socially dependent auditory laterality in domestic horses (Equus caballus) |
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Journal Article |
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Year |
2009 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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12 |
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611-619 |
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Abstract |
Laterality is now known to be an ubiquitous phenomenon among the vertebrates. Particularly, laterality of auditory processing has been demonstrated in a variety of species, especially songbirds and primates. Such a hemispheric specialization has been shown to depend on factors such as sound structure, species specificity and types of stimuli. Much less is known on the possible influence of social familiarity although a few studies suggest such an influence. Here we tested the influence of the degree of familiarity on the laterality of the auditory response in the domestic horse. This species is known for its social system and shows visible reactions to sounds, with one or two ears moving towards a sound source. By comparing such responses to the playback of different conspecific whinnies (group member, neighbor and stranger), we could demonstrate a clear left hemisphere (LH) preference for familiar neighbor calls while no preference was found for group member and stranger calls. Yet, we found an opposite pattern of ear side preference for neighbor versus stranger calls. These results are, to our knowledge, the first to demonstrate auditory laterality in an ungulate species. They open further lines of thought on the influence of the social “value” of calls and the listener's arousal on auditory processing and laterality. |
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Universite de Rennes I, EthoS, Ethologie animale et humaine-UMR 6552-CNRS Station Biologique de Paimpont, 35380, Paimpont, France, basilemuriel@hotmail.com |
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1435-9456 |
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PMID:19283416 |
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Equine Behaviour @ team @ |
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4761 |
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Gácsi, M.; McGreevy, P.; Kara, E.; Miklósi, Á. |
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Title |
Effects of selection for cooperation and attention in dogs |
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Year |
2009 |
Publication |
Behavioral and Brain Functions |
Abbreviated Journal |
Behav Brain Funct |
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5 |
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31 |
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ABSTRACT: BACKGROUND: It has been suggested that the functional similarities in the socio-cognitive behaviour of dogs and humans emerged as a consequence of comparable environmental selection pressures. Here we use a novel approach to account for the facilitating effect of domestication in dogs and reveal that selection for two factors under genetic influence (visual cooperation and focused attention) may have led independently to increased comprehension of human communicational cues. METHOD: In Study 1, we observed the performance of three groups of dogs in utilizing the human pointing gesture in a two-way object choice test. We compared breeds selected to work while visually separated from human partners (N = 30, 21 breeds, clustered as independent worker group), with those selected to work in close cooperation and continuous visual contact with human partners (N = 30, 22 breeds, clustered as cooperative worker group), and with a group of mongrels (N = 30).Secondly, it has been reported that, in dogs, selective breeding to produce an abnormal shortening of the skull is associated with a more pronounced area centralis (location of greatest visual acuity). In Study 2, breeds with high cephalic index and more frontally placed eyes (brachycephalic breeds, N = 25, 14 breeds) were compared with breeds with low cephalic index and laterally placed eyes (dolichocephalic breeds, N = 25, 14 breeds). RESULTS: In Study 1, cooperative workers were significantly more successful in utilizing the human pointing gesture than both the independent workers and the mongrels.In study 2, we found that brachycephalic dogs performed significantly better than dolichocephalic breeds. DISCUSSION: After controlling for environmental factors, we have provided evidence that at least two independent phenotypic traits with certain genetic variability affect the ability of dogs to rely on human visual cues. This finding should caution researchers against making simple generalizations about the effects of domestication and on dog-wolf differences in the utilization of human visual signals. |
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Dept, of Ethology, Eotvos University, H-1117, Budapest, Pazmany P, s, 1/c,, Hungary. gm.art@t-online.hu |
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1744-9081 |
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PMID:19630939 |
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Equine Behaviour @ team @ |
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4968 |
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Author |
Lepple, N. |
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Title |
Qualitätssicherung in der Fohlenaufzucht |
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2009 |
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Diploma thesis |
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Hochschule für Wirtschaft und Umwelt Nürtingen-Geislingen |
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Nürtingen |
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Equine Behaviour @ team @ |
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5219 |
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Author |
Ramseyer, A.; Petit, O.; Thierry, B. |
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Title |
Decision-making in group departures of female domestic geese |
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Year |
2009 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
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146 |
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351-371 |
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MOVEMENT; COLLECTIVE; PRE-DEPARTURE; RECRUITMENT; ANSER DOMESTICUS |
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Group-living animals have to make trade-offs to reach consensus and travel together. We investigated the recruitment processes underpinning decision-making at departure in a group of 20 female domestic geese (Anser domesticus) kept in semi-free-range conditions. Two observers continuously videotaped the behaviours of the birds. Data were analyzed using multiple regression analyses. We found that decision-making was a continuous and distributed process. Departure was preceded by an increase in the arousal state of group members and their initial orientation influenced recruitment. Patterns of group movement could be predicted from the behaviours of individuals before departure. Individuals' locations, moves and signals could act as passive or communicative cues. A higher number of vocalisations and arousal behaviours led to a larger number of individuals recruited. Some individuals were more efficient than others in recruiting followers but any geese could initiate a movement. First movers recruited a higher number of mates when they had a greater number of neighbours. Not only the first mover but also the behaviours of the second and third movers prompted further individuals to follow. There was no evidence that geese were able to intentionally recruit others, rather they synchronized and adjusted each other's motives until reaching a consensus. |
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Equine Behaviour @ team @ |
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5289 |
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Author |
Waiblinger, S |
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Animal welfare and housing |
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2009 |
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Welfare of Production Animals:: Assessment and Management of Risks (Food Safety Assurance and Veterinary Public Health) |
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79-111 |
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Wageningen Acad. Publ. |
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Wageningen |
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Smulders, F. J. |
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978-90-8686-122-4. |
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Equine Behaviour @ team @ |
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5302 |
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Author |
Spengler,A. Engel, H. |
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Human interaction with a gorilla family |
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2009 |
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Equine Behaviour @ team @ |
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5304 |
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Author |
Battista E. |
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Title |
Il Pony di Esperia |
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2009 |
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Il Pony di Esperia |
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ciociariaturismo |
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Ciociaria |
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Equine Behaviour @ team @ |
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5438 |
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Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz |
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Title |
Beurteilung von Pferdehaltungen unter Tierschutzgesichtspunkten |
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2009 |
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Equine Behaviour @ team @ |
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5481 |
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