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Author |
Gouzoules, S.; Gouzoules, H. |
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Kinship |
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1987 |
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Primate societies |
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299-305 |
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University of Chicago Press |
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Chicago |
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Smuts, B. B.; Cheney, D. L.; Seyfarth, R. M.; Wrangham, R. W.; Struhsaker T. T |
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Equine Behaviour @ team @ |
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5430 |
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Whitehead , H. |
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Title |
Analyzing Animal Societies. Quantitative Methods for Vertebrate Social Analysis |
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2008 |
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University of Chicago Press |
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chicago |
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EAN: 9780226895246 |
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Equine Behaviour @ team @ |
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5838 |
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Author |
Pimlott, D.H. |
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Title |
The use of tape-recorded wolf howls to locate timber wolves |
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1960 |
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Twenty-second Midwest Wildlife Congress |
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Toronto |
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Equine Behaviour @ team @ Pimlott1960 |
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6454 |
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Author |
Marees, H. de |
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Sportphysiologie. |
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Medizin von heute 10. |
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Tropon |
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Köln |
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Equine Behaviour @ team @ |
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4443 |
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Author |
van Duyne, C.; Ras, E.; de Vos, A.E.W.; de Boer, W.F.; Henkens, R.J.H.G.; Usukhjargal, D. |
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Title |
Wolf Predation Among Reintroduced Przewalski Horses in Hustai National Park, Mongolia |
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Journal Article |
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Year |
2009 |
Publication |
Journal of Wildlife Management |
Abbreviated Journal |
Journal of Wildlife Management |
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Volume |
73 |
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6 |
Pages |
836-843 |
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The Wildlife Society |
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0022-541x |
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doi: 10.2193/2008-027 |
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no |
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Equine Behaviour @ team @ |
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5776 |
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Author |
McCarthy, M.S.; Jensvold, M.L.A.; Fouts, D.H. |
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Title |
Use of gesture sequences in captive chimpanzee (Pan troglodytes) play |
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Journal Article |
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Year |
2013 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
16 |
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3 |
Pages |
471-481 |
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Gestural communication; Attentional state; Chimpanzee; Gesture sequence |
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Abstract |
This study examined the use of sensory modalities relative to a partner’s behavior in gesture sequences during captive chimpanzee play at the Chimpanzee and Human Communication Institute. We hypothesized that chimpanzees would use visual gestures toward attentive recipients and auditory/tactile gestures toward inattentive recipients. We also hypothesized that gesture sequences would be more prevalent toward unresponsive rather than responsive recipients. The chimpanzees used significantly more auditory/tactile rather than visual gestures first in sequences with both attentive and inattentive recipients. They rarely used visual gestures toward inattentive recipients. Auditory/tactile gestures were effective with and used with both attentive and inattentive recipients. Recipients responded significantly more to single gestures than to first gestures in sequences. Sequences often indicated that recipients did not respond to initial gestures, whereas effective single gestures made more gestures unnecessary. The chimpanzees thus gestured appropriately relative to a recipient’s behavior and modified their interactions according to contextual social cues. |
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Springer-Verlag |
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English |
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1435-9448 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5665 |
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Author |
Cochet, H.; Byrne, R.W. |
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Title |
Evolutionary origins of human handedness: evaluating contrasting hypotheses |
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Journal Article |
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Year |
2013 |
Publication |
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Abbreviated Journal |
Animal Cognition |
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Volume |
16 |
Issue |
4 |
Pages |
531-542 |
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Keywords |
Hand preference; Hemispheric specialization; Communicative gestures; Evolution of language; Nonhuman primates; Human children |
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Abstract |
Variation in methods and measures, resulting in past dispute over the existence of population handedness in nonhuman great apes, has impeded progress into the origins of human right-handedness and how it relates to the human hallmark of language. Pooling evidence from behavioral studies, neuroimaging and neuroanatomy, we evaluate data on manual and cerebral laterality in humans and other apes engaged in a range of manipulative tasks and in gestural communication. A simplistic human/animal partition is no longer tenable, and we review four (nonexclusive) possible drivers for the origin of population-level right-handedness: skilled manipulative activity, as in tool use; communicative gestures; organizational complexity of action, in particular hierarchical structure; and the role of intentionality in goal-directed action. Fully testing these hypotheses will require developmental and evolutionary evidence as well as modern neuroimaging data. |
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Springer-Verlag |
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English |
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1435-9448 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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5691 |
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Author |
Morton, F.B.; Lee, P.C.; Buchanan-Smith, H.M. |
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Title |
Taking personality selection bias seriously in animal cognition research: a case study in capuchin monkeys (Sapajus apella) |
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Journal Article |
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Year |
2013 |
Publication |
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Abbreviated Journal |
Animal Cognition |
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Volume |
16 |
Issue |
4 |
Pages |
677-684 |
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Keywords |
Platyrrhines; Temperament; Cognitive experiment; Selection bias; Associative learning; Training |
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Abstract |
In most experimental work on animal cognition, researchers attempt to control for multiple interacting variables by training subjects prior to testing, allowing subjects to participate voluntarily, and providing subjects with food rewards. However, do such methods encourage selection bias from subjects’ personalities? In this study, we trained eighteen zoo-housed capuchin monkeys (Sapajus apella) for two experiments, under conditions of positive reinforcement (i.e. food rewards) and free-choice participation. Using a combination of behavioral and rater-based methods, we identified and validated five personality dimensions in these capuchins (Assertiveness, Openness, Neuroticism, Sociability, and Attentiveness). Scores on Openness were positively related to individual differences in monkey task participation, reflecting previous work showing that such individuals are often more active, curious, and willing to engage in testing. We also found a negative relationship between scores on Assertiveness and performance on tasks, which may reflect the trade-offs between speed and accuracy in these animals’ decision-making. Highly Assertive individuals (the most sociable within monkey groups) may also prioritize social interactions over engaging in research. Lastly, monkeys that consistently participated and performed well on both tasks showed significantly higher Openness and lower Assertiveness compared to others, mirroring relationships found between personality, participation, and performance among all participants. Participation and performance during training was clearly biased toward individuals with particular personalities (i.e. high Openness, low Assertiveness). Results are discussed in light of the need for careful interpretation of comparative data on animal cognition and the need for researchers to take personality selection bias more seriously.
Animal Cognition Animal Cognition Look
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Springer-Verlag |
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1435-9448 |
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Equine Behaviour @ team @ |
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5696 |
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Author |
Guttridge, T.L.; Dijk, S.; Stamhuis, E.J.; Krause, J.; Gruber, S.H.; Brown, C. |
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Title |
Social learning in juvenile lemon sharks, Negaprion brevirostris |
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Journal Article |
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2013 |
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Abbreviated Journal |
Animal Cognition |
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16 |
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1 |
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55-64 |
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Local and stimulus enhancement; Group living; Social facilitation; Social information use; Elasmobranchs |
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Abstract |
Social learning is taxonomically widespread and can provide distinct behavioural advantages, such as in finding food or avoiding predators more efficiently. Although extensively studied in bony fishes, no such empirical evidence exists for cartilaginous fishes. Our aim in this study was to experimentally investigate the social learning capabilities of juvenile lemon sharks, Negaprion brevirostris. We designed a novel food task, where sharks were required to enter a start zone and subsequently make physical contact with a target in order to receive a food reward. Naive sharks were then able to interact with and observe (a) pre-trained sharks, that is, ‘demonstrators’, or (b) sharks with no previous experience, that is, ‘sham demonstrators’. On completion, observer sharks were then isolated and tested individually in a similar task. During the exposure phase observers paired with ‘demonstrator’ sharks performed a greater number of task-related behaviours and made significantly more transitions from the start zone to the target, than observers paired with ‘sham demonstrators’. When tested in isolation, observers previously paired with ‘demonstrator’ sharks completed a greater number of trials and made contact with the target significantly more often than observers previously paired with ‘sham demonstrators’. Such experience also tended to result in faster overall task performance. These results indicate that juvenile lemon sharks, like numerous other animals, are capable of using socially derived information to learn about novel features in their environment. The results likely have important implications for behavioural processes, ecotourism and fisheries. |
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Springer-Verlag |
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English |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
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5697 |
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Author |
Lloyd, P.H.; Rasa, O.A.E. |
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Title |
Status, reproductive success and fitness in Cape mountain zebra (Equus zebra zebra) |
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Journal Article |
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Year |
1989 |
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Behavioral Ecology and Sociobiology |
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25 |
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6 |
Pages |
411-420 |
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Abstract |
Demographic data relating to herd size and stability are given for a population of Cape mountain zebra (Equus zebra zebra) under longterm observation. Temporal dispersion patterns of male and female offspring differed and were independent of the mother's status. Dispersion in females appeared to be related to physiological state, and dispersion in both sexes was related to age rather than changes in parental behaviour. Reproductive success of dominant and subordinate mares was equal and independent of age and social and reproductive variables. Fitness of dominant mares, however, was significantly higher than that of subordinates, the latter having a higher foal mortality, part of which could be attributable to dominants' aggression. The fitness of all males born was 1.6:1 compared with all females. Dominant mares produced significantly more daughters than sons. This trend was not found for subordinates. Mother's status was positively correlated with dominant status in her female offspring but not related to the subsequent status of her sons. Daughters had a more than twice as great a chance of breeding than sons. For maximum fitness gains, therefore, dominant mares should produce more daughters, since a high proportion of these would also have high status and fitness. This tendency is reflected in the sex ratio skewed towards females found for dominant mares. |
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Springer-Verlag |
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English |
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0340-5443 |
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Equine Behaviour @ team @ |
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5787 |
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