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Author Bard, K.A. doi  openurl
  Title Neonatal imitation in chimpanzees (Pan troglodytes) tested with two paradigms Type Journal Article
  Year (up) 2007 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume 10 Issue 2 Pages 233-242  
  Keywords Animal Communication; Animals; Animals, Newborn; Imitative Behavior/*physiology; Pan troglodytes/*physiology/*psychology; Problem Solving/physiology  
  Abstract Primate species differ in their imitative performance, perhaps reflecting differences in imitative capacity. The developmentally earliest form of imitation in humans, neonatal imitation, occurs in early interactions with social partners, and may be a more accurate index of innate capacity than imitation of actions on objects, which requires more cognitive ability. This study assessed imitative capacity in five neonatal chimpanzees, within a narrow age range (7-15 days of age), by testing responses to facial and vocal actions with two different test paradigms (structured and communicative). Imitation of mouth opening was found in both paradigms. In the communicative paradigm, significant agreement was found between infant actions and demonstrations. Additionally, chimpanzees matched the sequence of three actions of the TC model, but only on the second demonstration. Newborn chimpanzees matched more modeled actions in the communicative test than in the structured paradigm. These performances of chimpanzees, at birth, are in agreement with the literature, supporting a conclusion that imitative capacity is not unique to the human species. Developmental histories must be more fully considered in the cross-species study of imitation, as there is a greater degree of innate imitative capacity than previously known. Socialization practices interact with innate and developing competencies to determine the outcome of imitation tests later in life.  
  Address Centre for the Study of Emotion, Department of Psychology, University of Portsmouth, King Henry Building, Portsmouth, PO1 2DY, UK. kim.bard@port.ac.uk  
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  ISSN 1435-9448 ISBN Medium  
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  Notes PMID:17180698 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2427  
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Author Cohen, J. doi  openurl
  Title Animal behavior. The world through a chimp's eyes Type
  Year (up) 2007 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 316 Issue 5821 Pages 44-45  
  Keywords Animal Communication; Animals; *Behavior, Animal; Cognition; Cooperative Behavior; Culture; Memory; Pan troglodytes/*psychology; Social Behavior; Tool Use Behavior  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1095-9203 ISBN Medium  
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  Notes PMID:17412932 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2832  
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Author Hopkins, W.D.; Taglialatela, J.P.; Leavens, D.A. url  openurl
  Title Chimpanzees differentially produce novel vocalizations to capture the attention of a human Type Journal Article
  Year (up) 2007 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 73 Issue 2 Pages 281-286  
  Keywords acoustic signals; chimpanzee; cognition; Pan troglodytes; vocal communication  
  Abstract Chimpanzees, Pan troglodytes, produce numerous species-atypical signals when raised in captivity. We examined contextual elements of the use of two of these vocal signals, the `raspberry' and the extended grunt. Our results demonstrate that these vocalizations are not elicited by the presence of food, but instead function as attention-getting signals. These findings reveal a heretofore underappreciated category of animal signals: attention-getting sounds produced in novel environmental circumstances. The invention and use of species-atypical signals, considered in relation to group differences in signalling repertoires in apes in their natural habitats, may index a generative capacity in these hominoid species without obvious corollary in other primate species.  
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  Call Number Equine Behaviour @ team @ Serial 2889  
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Author Beecher, M.D.; Burt, J.M.; O'Loghlen, A.L.; Templeton, C.N.; Campbell, S.E. url  doi
openurl 
  Title Bird song learning in an eavesdropping context Type Journal Article
  Year (up) 2007 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 73 Issue 6 Pages 929-935  
  Keywords eavesdropping; Melospiza melodia; passerine; social learning; song acoustics; song learning; song repertoire; song sparrow; vocal communication  
  Abstract Bird song learning is a major model system for the study of learning with many parallels to human language development. In this experiment we examined a critical but poorly understood aspect of song learning: its social context. We compared how much young song sparrows, Melospiza melodia, learned from two kinds of adult `song tutors': one with whom the subject interacted vocally, and one whom the subject only overheard singing with another young bird. We found that although subjects learned from both song models, they learned more than twice as many songs from the overheard tutor. These results provide the first evidence that young birds choose their songs by eavesdropping on interactions, and in some cases may learn more by eavesdropping than by direct interaction.  
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  Call Number Equine Behaviour @ team @ Serial 4207  
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Author Jonart, L.M.; Hill, G.E.; Badyaev, A.V. url  doi
openurl 
  Title Fighting ability and motivation: determinants of dominance and contest strategies in females of a passerine bird Type Journal Article
  Year (up) 2007 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 74 Issue 6 Pages 1675-1681  
  Keywords aggression; Carpodacus mexicanus; communication; house finch; passerines; resource holding potential  
  Abstract The communication of aggressive motivation or fighting ability has important fitness consequences for competing animals. Selection should favour rapid and honest communication between opponents to settle dominance relationships while avoiding prolonged and intense fighting. We investigated factors that influence fighting strategies and contest outcomes in female house finches, Carpodacus mexicanus, specifically focusing on the following questions. (1) What social contexts trigger an aggressive response? (2) Does body size and condition contribute to female fighting ability? (3) Do contextual factors, such as mate presence, nest status, nest proximity, and site experience contribute to fighting motivation? (4) Does contest intensity and duration increase as the differences in fighting ability between opponents decrease? (5) What is the relative contribution of fighting ability and aggressive motivation to the outcome of a contest? We found that aggression was triggered most frequently by female intrusions in the vicinity of nest and by extrapair female intrusions on an established pair. Female fighting and contest outcomes were strongly influenced by body condition and body size, and females were more motivated to initiate fights and won more contests when their mates were present. Females at the later breeding stages and those fighting closer to their nests were dominant and won more fights compared to females at earlier breeding stages or further from their nests. Females initiated a greater proportion of contests against opponents with similar local familiarity and breeding history. Escalated and prolonged contests, while rare, occurred exclusively between females of the most similar body size and condition. When differences in body condition between opponents are not easily perceived, contestants might escalate contests for more reliable assessments of relative fighting ability. Finally, body condition was not a strong determinant of contest outcome in the contexts with easily assessed differences in the resource value (e.g. mate presence), but without these motivational differences, body condition was the ultimate determinant of contest outcomes.  
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  Call Number Equine Behaviour @ team @ Serial 4317  
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Author Birke, L. doi  openurl
  Title “Learning to speak horse”: The culture of “natural horsemanship” Type Journal Article
  Year (up) 2007 Publication Society and Animals Abbreviated Journal  
  Volume 15 Issue 3 Pages 217-239  
  Keywords natural horsemanship – riding technologies – communication – social change  
  Abstract This paper examines the rise of what is popularly called “natural horsemanship” (NH), as a definitive cultural change within the horse industry. Practitioners are often evangelical about their methods, portraying NH as a radical departure from traditional methods. In doing so, they create a clear demarcation from the practices and beliefs of the conventional horse-world. Only NH, advocates argue, properly understands the horse. Dissenters, however, contest the benefits to horses as well as the reliance in NH on disputed concepts of the natural. Advocates, furthermore, sought to rename technologies associated with riding while simultaneously condemning technologies used in conventional training (such as whips). These contested differences create boundaries and enact social inclusion and exclusion, which the paper explores. For horses, the impact of NH is ambiguous: Depending on practitioners, effects could be good or bad. However, for the people involved, NH presents a radical change-which they see as offering markedly better ways of relating to horses and a more inclusive social milieu.  
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  Call Number Equine Behaviour @ team @ Serial 4393  
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Author Scordato, E.S.; Drea, C.M. url  doi
openurl 
  Title Scents and sensibility: information content of olfactory signals in the ringtailed lemur, Lemur catta Type Journal Article
  Year (up) 2007 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 73 Issue 2 Pages 301-314  
  Keywords chemical communication; female dominance; individual recognition; intrasexual competition; Lemur catta; mate choice; reproductive signalling; ringtailed lemur; scent marking; seasonality  
  Abstract The function of olfactory signalling in social species is less well understood than in asocial species. Consequently, we examined olfactory communication in the ringtailed lemur, a socially complex primate that retains a functional vomeronasal organ, has well-developed scent glands and shows a suite of scent-marking behaviour. To assess the information content of different types of scent gland secretions, we decoupled olfactory cues from the visual and behavioural modalities with which scent marking is normally associated. We presented male and female subjects (signal receivers) with a series of choice tests between odours derived from conspecific donors (signal senders) varying by sex, age, social status and reproductive condition. We additionally examined the influence of the receivers' reproductive state and familiarity with the signaller. The reproductive condition, social status and familiarity of senders and receivers affected signal transmission; specifically, male receivers attended most to the odours of conspecifics in breeding condition and to the odours of familiar, dominant animals. By contrast, females varied their responses according to both their own reproductive state and that of the sender. Based on male and female patterns of countermarking, we suggest that scent marking serves a function in intergroup spacing and intrasexual competition for both sexes, as might be expected in a female-dominant species. By contrast, minimal female interest in male odours counters a female mate choice function for scent marking in this species. Nevertheless, scent marks are critical to male-male competition and, therefore, may be subject to sexual selection.  
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  Call Number Equine Behaviour @ team @ Serial 4648  
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Author Bartosova, J.; Dvorakova, R.; Vancatova, M.; Svobodova, I. pdf  openurl
  Title Comprehension of human pointing gesture in domestic horses: Effect of training method Type Conference Article
  Year (up) 2008 Publication IESM 2008 Abbreviated Journal  
  Volume Issue Pages  
  Keywords Human-horse communication, Pointing, Training methods, Horsemanship  
  Abstract Horses have been considered to rely on human gesticular cues (McKinley and Sambrook 2000, Anim Cogn 3:13-22; and recently Maros et al. 2008, Anim Cogn 11:457-466), however large variability among individuals tested in two-ways object choice tasks was found. Part of the horses in those studies (40 and 26 %, respectively) even failed to pass adequately through the training session which preceded the testing phase and served to learn a horse to carry out a task. Therefore, we alternated the experimental design designed by McKinley and Sambrook (reduced number of testing trials to 10 per horse to keep its attention, applied just one, a dynamic-sustained pointing cue with touching the bucket, etc.), and tested an effect of training method, sex, age, and learning on proportion of correct choices. We hypothesised, that horses trained by “traditional” method (TTM) will get lower score than those experienced with “horsemanship-based” methods (HTM), being characterized by closer and more frequent human-horse contact and also extended exercising “from the ground” with frequent using of arms cues. Despite simplification of the methods, only about 60 % of tested horses passed through the training phase (i.e., learned to come to and upturn the bucket with hidden treat). Successful completion of training phase was reached regardless of age or sex of a horse, but by the training method; HTM horses ran better compared to TTM ones. No significant effect of age, sex, or learning (i.e., trial order within all 10), and training method as well was found on proportion of correct trials in the testing phase. Horses made a correct choice in more than 70% of trials. Individual scores ranged from 50 to 100 %. In conclusion, horses showed high level of comprehension of human pointing gesture, regardless of their sex or age. No effects of training method or learning process within a test suggest low impact of handling and learning on the level of comprehension at least of the most vivid human pointing gesture. Horses trained by methods based on “natural human-horse communication” did enhance cooperation with people.  
  Address Department of Ethology, Institute of Animal Science, Pratelstvi 815, CZ-104 00 Praha Uhrineves, Czech Republic  
  Corporate Author Bartosova, J. Thesis  
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  Notes Talk 15 min IESM 2008 Approved yes  
  Call Number Equine Behaviour @ team @ Serial 4464  
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Author Palagi, E. url  doi
openurl 
  Title Sharing the motivation to play: the use of signals in adult bonobos Type Journal Article
  Year (up) 2008 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 75 Issue 3 Pages 887-896  
  Keywords bonobo; full play face; Pan paniscus; play face; playful propensity; ritualization; social play; social tolerance; solitary play; visual communication  
  Abstract Gestures and facial displays are involved in regulating many aspects of mammal social life such as aggression, dominance-subordinate relationships, appeasement and play. Playful activity is an interesting behaviour for examining the role of signals as intentional communication systems. When animals play they perform patterns that are used in other serious contexts. To avoid miscommunication, many species have evolved signals to maintain a playful mood. Bonobos, Pan paniscus, with their flexible social relationships and playful propensity, may represent a good model species to test some hypotheses on adult play signalling. I analysed the potential roles of facial play expressions and solitary play in soliciting and regulating social play and found that adult bonobos used the play face (relaxed open-mouth display) in a selective manner. Play faces were more frequent during social than solitary play and, within social play, polyadic sessions (even though less frequent than dyadic sessions) were characterized by a higher frequency of signals. Following the rule of play intensity matching, play faces were more frequent when the two players matched in age and size (sessions among adults). Moreover, among dyads there was a positive correlation between the frequency of aggressive interactions performed and the frequency of play signals used, thus suggesting that signals are crucial in play negotiations among individuals showing high baseline levels of aggression. Finally, solitary play, especially when it involved pirouettes and somersaults, had an important role in triggering social play.  
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  Call Number Equine Behaviour @ team @ Serial 4316  
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Author Maros, K.; Gácsi, M.; Miklósi, Á doi  openurl
  Title Comprehension of human pointing gestures in horses ( Equus caballus ) Type Journal Article
  Year (up) 2008 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume 11 Issue 3 Pages 457-466  
  Keywords Human-animal communication – Pointing – Horse  
  Abstract Abstract Twenty domestic horses (Equus caballus) were tested for their ability to rely on different human gesticular cues in a two-way object choice task. An experimenter hid food under one of two bowls and after baiting, indicated the location of the food to the subjects by using one of four different cues. Horses could locate the hidden reward on the basis of the distal dynamic-sustained, proximal momentary and proximal dynamic-sustained pointing gestures but failed to perform above chance level when the experimenter performed a distal momentary pointing gesture. The results revealed that horses could rely spontaneously on those cues that could have a stimulus or local enhancement effect, but the possible comprehension of the distal momentary pointing remained unclear. The results are discussed with reference to the involvement of various factors such as predisposition to read human visual cues, the effect of domestication and extensive social experience and the nature of the gesture used by the experimenter in comparative investigations.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4388  
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