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Author |
Legare, C.H.; Nielsen, M. |
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Title |
Imitation and Innovation: The Dual Engines of Cultural Learning |
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Journal Article |
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Trends in Cognitive Sciences |
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Trends in Cognitive Sciences |
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Volume |
19 |
Issue |
11 |
Pages |
688-699 |
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Imitation and innovation work in tandem to support cultural learning in children and facilitate our capacity for cumulative culture. Here we propose an integrated theoretical account of how the unique demands of acquiring instrumental skills and cultural conventions provide insight into when children imitate, when they innovate, and to what degree. For instrumental learning, with an increase in experience, high fidelity imitation decreases and innovation increases. By contrast, for conventional learning, imitative fidelity stays high, regardless of experience, and innovation stays low. We synthesize cutting edge research on the development of imitative flexibility and innovation to provide insight into the social learning mechanisms underpinning the uniquely human mind. |
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Elsevier |
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1364-6613 |
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doi: 10.1016/j.tics.2015.08.005 |
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Equine Behaviour @ team @ |
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5931 |
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Author |
Vidya, T.N.C.; Sukumar, R. |
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Title |
Social and reproductive behaviour in elephants |
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Journal Article |
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Year |
2005 |
Publication |
Current Science (Bangalore) |
Abbreviated Journal |
Curr Sci |
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89 |
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7 |
Pages |
1200-1207 |
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Acoustic communication; dispersal; Elephas maximus; Loxodonta africana; musth; social organization |
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We present a review of studies on elephant social and reproductive behaviour. While the social organization of the African savannah elephant (Loxodonta africana africana) has been intensively studied,that of the African forest elephant (Loxodonta africana cyclotis) and the Asian elephant (Elephas maximus) are poorly understood. Noninvasive molecular methods are useful in combination with behavioural data in understanding social organization and dispersal strategies. The ecological determinants of social organization, and the importance of matriarchal leadership to social groups, and relative importance of different forms of communication under various ecological conditions remain interesting topics that await investigation. Reproductive behaviour also has been examined in detail only in the African savannah elephant, although rigorous chemical analyses continue to be carried out using captive elephants of both species. Improved laboratory techniques may enable future work on reproductive signalling in free-ranging elephants, allowing for comprehensive studies of male-male interactions and mate choice by females. |
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Copyright for this article belongs to Indian Academy of Sciences. |
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yes |
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Call Number |
Equine Behaviour @ team @ |
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4703 |
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Author |
Lansade, L.; Bouissou, M.-F. |
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Title |
Reactivity to humans: A temperament trait of horses which is stable across time and situations |
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Journal Article |
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Year |
2008 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
114 |
Issue |
3-4 |
Pages |
492-508 |
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Horse; Equus caballus; Reactivity to humans; Temperament trait; Personality; Behavioural consistency |
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The aim of this study was to test the existence of a “reactivity-to-humans” trait which is stable over time and across situations. For this purpose, four test situations were repeated on the same animals at 8 months, 1.5 years (N = 110 horses) and 2.5 years of age (N = 54 horses). These situations involved a “familiar passive human test” during which a familiar person stayed motionless in the test pen, a “familiar active human test” and an “unfamiliar active human test” during which a familiar or unfamiliar person attempted to touch the horse, and a “halter-fitting and heart-rate measurement test”, during which the horse was haltered and equipped with a surcingle and then had its heart-rate measured. Many behavioural variables were recorded during the tests, and correlations between ages and variables measured during other situations were investigated. When correlations were found, we concluded that the variables corresponded to temperament traits which are stable over time and across situations. The horses tested were divided into four groups according to breed (Anglo-Arab and Welsh) and year of birth (2001 and 2002). Data for each group were analysed separately with Spearman rank correlations. Regarding stability over time, there was a strong correlation between ages in the frequency of licking/nibbling the passive human, the time taken by a familiar or unfamiliar person to touch the horse, and the time taken to fit a halter (e.g. the time taken to touch the horse's muzzle was significantly correlated between ages in 7 out of the 8 possible cases: 0.40 <= R <= 0.67). Regarding stability across situations, results indicate that the more frequently a horse sniffed, licked or nibbled a passive human, the easier it was for either a familiar or unfamiliar active human to touch and halter it. Moreover, a horse which could be touched easily by a familiar human could also be touched and haltered easily by an unfamiliar human. These behaviours, which are linked directly to humans, therefore indicate good stability over time and across situations. In conclusion, this stability suggests the existence of a “reactivity-to-humans” temperament trait, whether the human is passive or active, familiar or unfamiliar. When the animals do not have frequent contact with humans, this reactivity is stable over time and can be measured as early as 8 months of age using the behavioural variables cited above. |
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0168-1591 |
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Equine Behaviour @ team @ |
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4710 |
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Author |
Verrill, S.; McDonnell, S. |
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Title |
Equal Outcomes with and without Human-to-Horse Eye Contact When Catching Horses and Ponies in an Open Pasture |
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Journal Article |
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2008 |
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Journal of Equine Veterinary Science |
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28 |
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5 |
Pages |
309-312 |
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Horse handling; Horse management; Eye contact; Interspecies interactions; Equine behavior |
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Each of 104 horses and ponies was approached for catching at pasture by the same human handler in a standard manner, either maintaining human-to-animal eye contact (EC+; n = 51) or avoiding eye contact (EC-; n = 53). A subset of 74 of these subjects were reevaluated 3 weeks later under similar standard conditions except with the eye contact condition opposite to that used in the first round. Nonparametric statistical methods were used to evaluate between subjects (round 1, n = 104) and within subjects (rounds 1 and 2, n = 74) comparisons of successful or unsuccessful catching outcome with EC+ and EC-. Catching outcomes were similar with eye contact condition. Although this study represents a single handler at one study site, results suggest that human-to-horse eye contact may not be an important influence on catching pastured horses. Certainly, further work is needed to better understand the role of eye contact in horse handling. |
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0737-0806 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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4711 |
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Author |
Bednarz, J.C. |
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Title |
Cooperative Hunting Harris' Hawks (Parabuteo unicinctus) |
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Journal Article |
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Year |
1988 |
Publication |
Science |
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Science |
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Volume |
239 |
Issue |
4847 |
Pages |
1525-1527 |
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Coordinated hunting by several individuals directed toward the capture and sharing of one Large prey animal has been documented convincingly only for a few mammalian carnivores. In New Mexico, Harris' hawks formed hunting parties of two to six individuals in the nonbreeding season. This behavior improved capture success and the average energy available per individual enabled hawks to dispatch prey larger than themselves. These patterns suggest that cooperation is important to understanding the evolution of complex social behavior in higher vertebrates and, specifically, that benefits derived from team hunting a key factor in the social living of Harris' hawks. |
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10.1126/science.239.4847.1525 |
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Equine Behaviour @ team @ |
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4717 |
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Author |
Schmidt, D. |
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Title |
Information Resources in Animal Behavior |
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Journal Article |
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Year |
1992 |
Publication |
Science & Technology Libraries |
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12 |
Issue |
1 |
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69-83 |
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The study of animal behavior has been around for many years, but it is divided into several fields which often do not communicate well. These fields of study include (but are not limited to) comparative psychology, ethology, behavioral ecology, and sociobiology. Comparative psychology is more isolated than the other three fields, which share a common biological/evolutionary background. This paper gives a brief background of the four main fields of animal behavior research, along with a list of sources, both specialized and interdisciplinary. |
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Routledge |
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0194-262x |
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Equine Behaviour @ team @ |
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4725 |
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Rowe, M.L.; Goldin-Meadow, S. |
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Title |
Differences in Early Gesture Explain SES Disparities in Child Vocabulary Size at School Entry |
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Journal Article |
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2009 |
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Science |
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Science |
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323 |
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5916 |
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951-953 |
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Children from low-socioeconomic status (SES) families, on average, arrive at school with smaller vocabularies than children from high-SES families. In an effort to identify precursors to, and possible remedies for, this inequality, we videotaped 50 children from families with a range of different SES interacting with parents at 14 months and assessed their vocabulary skills at 54 months. We found that children from high-SES families frequently used gesture to communicate at 14 months, a relation that was explained by parent gesture use (with speech controlled). In turn, the fact that children from high-SES families have large vocabularies at 54 months was explained by children's gesture use at 14 months. Thus, differences in early gesture help to explain the disparities in vocabulary that children bring with them to school. |
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10.1126/science.1167025 |
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Equine Behaviour @ team @ |
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4728 |
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Sol, D.; Duncan, R.P.; Blackburn, T.M.; Cassey, P.; Lefebvre, L. |
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Big brains, enhanced cognition, and response of birds to novel environments |
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2005 |
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Proceedings of the National Academy of Sciences of the United States of America |
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Proc. Natl. Acad. Sci. U.S.A. |
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102 |
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15 |
Pages |
5460-5465 |
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The widely held hypothesis that enlarged brains have evolved as an adaptation to cope with novel or altered environmental conditions lacks firm empirical support. Here, we test this hypothesis for a major animal group (birds) by examining whether large-brained species show higher survival than small-brained species when introduced to nonnative locations. Using a global database documenting the outcome of >600 introduction events, we confirm that avian species with larger brains, relative to their body mass, tend to be more successful at establishing themselves in novel environments. Moreover, we provide evidence that larger brains help birds respond to novel conditions by enhancing their innovation propensity rather than indirectly through noncognitive mechanisms. These findings provide strong evidence for the hypothesis that enlarged brains function, and hence may have evolved, to deal with changes in the environment. |
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10.1073/pnas.0408145102 |
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Equine Behaviour @ team @ |
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4739 |
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Author |
Bolhuis, J.J.; Macphail, E.M. |
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Title |
A critique of the neuroecology of learning and memory |
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Journal Article |
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Year |
2001 |
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Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
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5 |
Issue |
10 |
Pages |
426-433 |
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Recent years have seen the emergence of neuroecology, the study of the neural mechanisms of behaviour guided by functional and evolutionary principles. This research has been of enormous value for our understanding of the evolution of brain- and species-specific behaviour. However, we question the validity of the neuroecological approach when applied to the analysis of learning and memory, given its arbitrary assumption that different [`]problems' engage different memory mechanisms. Differences in memory-based performance in [`]natural' tasks do not prove differences in memory capacity; similarly, differences in the use of memory in the natural environment do not provide a sound basis for expecting differences in anatomical structures that subserve learning and memory. This critique is illustrated with examples taken from the study of the neurobiology of food storing and song learning in birds. |
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1364-6613 |
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Equine Behaviour @ team @ |
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4742 |
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Biegler, R.; McGregor, A.; Krebs, J.R.; Healy, S.D. |
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Title |
A larger hippocampus is associated with longer-lasting spatial memory |
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Journal Article |
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2001 |
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Proceedings of the National Academy of Sciences of the United States of America |
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Proc. Natl. Acad. Sci. U.S.A. |
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98 |
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12 |
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6941-6944 |
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Volumetric studies in a range of animals (London taxi-drivers, polygynous male voles, nest-parasitic female cowbirds, and a number of food-storing birds) have shown that the size of the hippocampus, a brain region essential to learning and memory, is correlated with tasks involving an extra demand for spatial learning and memory. In this paper, we report the quantitative advantage that food storers gain from such an enlargement. Coal tits () a food-storing species, performed better than great tits (), a nonstoring species, on a task that assessed memory persistence but not on a task that assessed memory resolution or on one that tested memory capacity. These results show that the advantage to the food-storing species associated with an enlarged hippocampus is one of memory persistence. |
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10.1073/pnas.121034798 |
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Equine Behaviour @ team @ |
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4743 |
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