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Author |
Lefebvre, L.; Bouchard, J. |
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Title |
Social learning about food in birds |
Type |
Book Chapter |
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Year |
2003 |
Publication |
The Biology of Traditions |
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Issue |
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Pages |
94-126 |
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Publisher |
Cambridge University Press |
Place of Publication |
Cambridge |
Editor |
Fragaszy, D.M; Perry, S. |
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Language |
Englisch |
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ISBN |
978-0521815970 |
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Call Number  |
Equine Behaviour @ team @ |
Serial |
5471 |
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Author |
Giraldeau, L.-A.; Lefebvre, L. |
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Title |
Exchangeable producer and scrounger roles in a captive flock of feral pigeons: a case for the skill pool effect |
Type |
Journal Article |
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Year |
1986 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
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Volume |
34 |
Issue |
3 |
Pages |
797-803 |
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Abstract |
We investigated the foraging producer-scrounger system of a captive flock of feral pigeons (Columba livia) by monitoring the number of food patches each individual produced. In one experiment, three different patch types were tested on the whole flock while, in a second, flock composition was varied for one patch type. In all cases we found non-uniform distributions of the number of patches produced per individual, which suggests the existence of producer and scrounger roles. This result could not be explained by either dominance or variability in individual learning ability. Individuals switched roles in response to changes both in food patch type and flock composition. These results are discussed in light of the skill pool hypothesis, which suggests that, in a group, different foraging specialists will profit by parasitizing each other's food discoveries. |
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0003-3472 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
6012 |
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Author |
Giraldeau, L.-A.; Lefebvre, L.; Morand-Ferron, J. |
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Title |
Can a restrictive definition lead to biases and tautologies? |
Type |
Journal Article |
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Year |
2007 |
Publication |
Behavioral and Brain Sciences |
Abbreviated Journal |
Behav. Brain Sci. |
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Volume |
30 |
Issue |
4 |
Pages |
411-412 |
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Abstract |
We argue that the operational definition proposed by Ramsey et al. does not represent a significant improvement for students of innovation, because it is so restrictive that it might actually prevent the testing of hypotheses on the relationships between innovation, ecology, evolution, culture, and intelligence. To avoid tautological thinking, we need to use an operational definition that is taxonomically unbiased and neutral with respect to the hypotheses to be tested. |
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Cambridge University Press |
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2007/12/17 |
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ISSN |
0140-525x |
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Equine Behaviour @ team @ |
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6533 |
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Author |
Ducatez, S.; Audet, J.N.; Lefebvre, L. |
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Title |
Independent appearance of an innovative feeding behaviour in Antillean bullfinches |
Type |
Journal Article |
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Year |
2013 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
16 |
Issue |
3 |
Pages |
525-529 |
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Abstract |
Behavioural innovations have been largely documented in birds and are thought to provide advantages in changing environments. However, the mechanisms by which behavioural innovations spread remain poorly known. Two major mechanisms are supposed to play a fundamental role: innovation diffusion by social learning and independent appearance of the same innovation in different individuals. Direct evidence for the independent emergence of the same innovation in different individuals is, however, lacking. Here, we show that a highly localized behavioural innovation previously observed in 2000 in Barbados, the opening of sugar packets by Loxigilla barbadensis bullfinches, persisted more than a decade later and had spread to a limited area around the initial site. More importantly, we found that the same innovation appeared independently in other, more distant, locations on the same island. On the island of St-Lucia, 145 km from Barbados, we also found that the sister species of the Barbados bullfinch, the Lesser Antillean bullfinch Loxigilla noctis developed the same innovation independently. Finally, we found that a third species, the Bananaquit Coereba flaveola, exploited the bullfinches’ technical innovation to benefit from this new food source. Overall, our observations provide the first direct evidence of the independent emergence of the same behavioural innovation in different individuals of the same species, but also in different species subjected to similar anthropogenic food availability. |
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ISSN |
1435-9456 |
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Call Number |
Equine Behaviour @ team @ Ducatez2013 |
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5934 |
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Author |
Ducatez, S.; Audet, J.-N.; Rodriguez, J.R.; Kayello, L.; Lefebvre, L. |
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Title |
Innovativeness and the effects of urbanization on risk-taking behaviors in wild Barbados birds |
Type |
Journal Article |
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Year |
2017 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
20 |
Issue |
1 |
Pages |
33-42 |
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Abstract |
The effects of urbanization on avian cognition remain poorly understood. Risk-taking behaviors like boldness, neophobia and flight distance are thought to affect opportunism and innovativeness, and should also vary with urbanization. Here, we investigate variation in risk-taking behaviors in the field in an avian assemblage of nine species that forage together in Barbados and for which innovation rate is known from previous work. We predicted that birds from highly urbanized areas would show more risk-taking behavior than conspecifics from less urbanized parts of the island and that the differences would be strongest in the most innovative of the species. Overall, we found that urban birds are bolder, less neophobic and have shorter flight distances than their less urbanized conspecifics. Additionally, we detected between-species differences in the effect of urbanization on flight distance, more innovative species showing smaller differences in flight distance between areas. Our results suggest that, within successful urban colonizers, species differences in innovativeness may affect the way species change their risk-taking behaviors in response to the urban environment. |
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1435-9456 |
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Call Number |
Equine Behaviour @ team @ Ducatez2017 |
Serial |
6128 |
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Author |
Lefebvre, L. |
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Title |
Ecological correlates of social learning: problems and solutions for the comparative method |
Type |
Journal Article |
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Year |
1995 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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Volume |
35 |
Issue |
1-3 |
Pages |
163-171 |
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Keywords |
Adaptive specialization; Social learning; Comparative method |
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Abstract |
Interspecific variation in learning and cognition is often accounted for by adaptive specialization, an ecological framework where variation between species in the environmental problems they face is thought to select for quantitatively and/or qualitatively different abilities. Adaptive specialization theory relies on the comparative method for testing its hypotheses and assumes a naturally selected basis for the predicted differences. This review examines social learning as a specialization to group-living and scramble feeding competition. It points out one important problem with current studies in the area, the lack of quantitative controls for confounding variables that may cause type 1 or 2 error in comparative tests. A linear regression technique is proposed to measure and remove interspecific differences on control tests for which there is no predicted adaptive specialization; as in other areas of comparative biology, the adaptive prediction is then made on the residual deviation from the regression of these confounding variables. Examples are given from research on opportunistic Columbids, the group-living feral pigeon Columbia livia, and the territorial Zenaida dove, Zenaida aurita. |
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refbase @ user @ |
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843 |
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