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Author |
Lefebvre, L.; Giraldeau, L.-A. |
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Title  |
Is social learning an adaptive specialisation? |
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Year |
1996 |
Publication |
Social learning in animals: The root of culture |
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107-128 |
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Academic Press. |
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San Diego |
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Heyes, C. M. ;B. G. Galef B. G..Jr. |
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978-0122739651 |
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Equine Behaviour @ team @ |
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4415 |
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Author |
Lefebvre, L.; Juretic, N.; Nicolakakis, N.; Timmermans, S. |
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Title |
Is the link between forebrain size and feeding innovations caused by confounding variables? A study of Australian and North American birds |
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Journal Article |
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Year |
2001 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
4 |
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2 |
Pages |
91-97 |
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Abstract |
The short notes of ornithology journals feature new and unusual feeding behaviours, which, when systematically collated, could provide a quantitative estimate of behavioural flexibility in different bird groups. Previous studies suggest that taxonomic variation in the frequency of new behaviours (innovations) is correlated with variation in relative forebrain size. Recent work on primates shows, however, that observer bias can affect innovation frequency. We assess this possibility in birds via three estimates in North America and Australia: the number of full-length papers in academic journals, the frequency of photographs in birding magazines and a questionnaire on reporting bias given to ornithologists at a meeting. We also look at sampling effects due to single journal sources by doing a split-half analysis of our North American database (The Wilson Bulletin vs. six other journals) and adding three new Australian journals to the one we had used previously. In multiple regressions that also included species number per taxon, none of the potential biases could account for the correlation between forebrain size and innovation frequency. Species number was the best predictor of full-length paper frequency, which was the best predictor of photograph numbers. Ornithologists are not preferentially interested in innovative, large-brained taxa, suggesting that the correlation between innovations and neural substrate size is not a spurious effect of the biases examined here. |
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Equine Behaviour @ team @ |
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3284 |
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Author |
Seferta, A.; Guay, P.-J.; Marzinotto, E.; Lefebvre, L. |
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Title |
Learning Differences between Feral Pigeons and Zenaida Doves: The Role of Neophobia and Human Proximity |
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Journal Article |
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Year |
2001 |
Publication |
Ethology |
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Ethology |
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107 |
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281-293 |
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Learning differences predicted from ecological variables can be confounded with differences in wariness of novel stimuli (neophobia). Previous work on feral pigeons (Columba livia), as well as on group-feeding and territorial zenaida doves (Zenaida aurita), reported individual and social learning differences predicted from social foraging mode. In the present study, we show that speed of learning a foraging task covaries with neophobia and latency to feed from a familiar dish in the three types of columbids. Pigeons were much faster than either territorial or group-feeding zenaida doves on all tests conducted in captivity, but showed unexpectedly strong neophobia in some urban flocks during field tests. Human proximity strongly affected performance in group-feeding doves both in the field and in captivity. They were slightly faster at learning than their territorial conspecifics in cage tests. In multiple regressions, species identity, but not social foraging mode, significantly predicted individual variation in learning, as did individual variation in neophobia. Wariness of novel stimuli and species differences associated with artificial selection appear to be more important than foraging mode and wariness of humans in accounting for learning differences between these columbids. |
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Equine Behaviour @ team @ |
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2184 |
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Author |
Giraldeau, L.-A.; Lefebvre, L. |
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Title |
Scrounging prevents cultural transmission of food-finding behaviour in pigeons |
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Year |
1987 |
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Animal Behaviour. |
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Anim. Behav. |
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35 |
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2 |
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387-394 |
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Living in groups should promote the cultural transmission of a novel behaviour because opportunities for observing knowledgeable individuals are likely to be more numerous in this condition. However, in this study pigeons who shared the food discoveries of others (scroungers) did not learn the food-finding technique used by the discoverers (producers). Individually-caged pigeons prevented from scrounging easily learned the technique from a conspecific tutor. When caged pigeons obtained food from the tutor's performance, most naïve observers failed to learn. In a flock, scroungers selectively followed producers. In individual cages, scrounging during the tutor's demonstration was equivalent to getting no demonstration at all. This effect of scrounging did not interfere with subsequent acquisition of the food-finding behaviour when scrounging was no longer possible. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5265 |
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Author |
Lefebvre, L.; Bouchard, J. |
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Title |
Social learning about food in birds |
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Book Chapter |
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Year |
2003 |
Publication |
The Biology of Traditions |
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94-126 |
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Cambridge University Press |
Place of Publication |
Cambridge |
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Fragaszy, D.M; Perry, S. |
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Englisch |
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978-0521815970 |
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Equine Behaviour @ team @ |
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5471 |
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Bouchard, J.; Goodyer, W.; Lefebvre, L. |
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Title |
Social learning and innovation are positively correlated in pigeons (Columba livia) |
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Year |
2007 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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10 |
Issue |
2 |
Pages |
259-266 |
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Animals; Behavior, Animal/*physiology; Columbidae/*physiology; *Learning; *Problem Solving |
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Abstract |
When animals show both frequent innovation and fast social learning, new behaviours can spread more rapidly through populations and potentially increase rates of natural selection and speciation, as proposed by A.C. Wilson in his behavioural drive hypothesis. Comparative work on primates suggests that more innovative species also show more social learning. In this study, we look at intra-specific variation in innovation and social learning in captive wild-caught pigeons. Performances on an innovative problem-solving task and a social learning task are positively correlated in 42 individuals. The correlation remains significant when the effects of neophobia on the two abilities are removed. Neither sex nor dominance rank are associated with performance on the two tasks. Free-flying flocks of urban pigeons are able to solve the innovative food-finding problem used on captive birds, demonstrating it is within the range of their natural capacities. Taken together with the comparative literature, the positive correlation between innovation and social learning suggests that the two abilities are not traded-off. |
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Department of Biology, McGill University, 1205, Avenue Docteur Penfield, Montreal, Quebec, H3A 1B1, Canada |
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English |
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1435-9448 |
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PMID:17205290 |
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Equine Behaviour @ team @ |
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2425 |
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