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Tri :
auteur
Date de référencement
Editeur
Titre
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Ecological character displacement in competing common green lacewings in Europe: a route to speciation?
Date de publication :
20130801 |
Auteur(s) :
Thierry, D., Canard, M., Deutsch, B., Ventura, M.A., Lourenço, P., Lodé, T., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
The Linnean Society of London |
Origine de la fiche :
Université de Rennes 1
Competitive interactions among the three common green lacewing species of the Chrysoperla complex in Europe are presented. Four morphological characters were registered as semi-quantitative traits to assess variation between populations. Data were obtained from 325 adults originating from 14 locations. A statistical approach was performed in conjunction with observations of ecological traits and a...
Référencé le :
16-03-2012
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Do horses have a concept of person?
Date de publication :
20130801 |
Auteur(s) :
Sankey, C., Henry, S., André, N., Richard-Yris, M.-A., Hausberger, M., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Public Library of Science |
Origine de la fiche :
Université de Rennes 1
Background: Animals’ ability for cross-modal recognition has recently received much interest. Captive or domestic animals seem able to perceive cues of human attention and appear to have a multisensory perception of humans.
Methodology/Principal Findings: Here, we used a task where horses have to remain immobile under a vocal order to test whether they are sensitive to the attentional state of th...
Référencé le :
23-03-2012
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Asymmetry of behavioral responses to a human approach in young naive vs. trained horses
Date de publication :
20130801 |
Auteur(s) :
Sankey, C., Henry, S., Clouard, C., Richard-Yris, M.-A., Hausberger, M., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Elsevier Inc. |
Origine de la fiche :
Université de Rennes 1
The aim of this study was to investigate the impact of training experience on young horses (Equus caballus)’ lateralized responses to an approaching human. The results show that the one year old untrained horses display asymmetrical responses to an approaching human, with more negative reactions (escapes, threats) when approached from the left side, while approaches towards the right shoulder elic...
Référencé le :
23-03-2012
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Phylogeography of Mus (Nannomys) minutoides (Rodentia, Muridae) in West Central African savannahs: singular vicariance in neighbouring populations
Date de publication :
20130801 |
Auteur(s) :
Mboumba, J.-F., Deleporte, P., Colyn, M., Nicolas, V., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Blackwell Verlag GmbH |
Origine de la fiche :
Université de Rennes 1
We studied the phylogeography of the strict savannah pygmy mice Mus (Nannomys) minutoides in West Central Africa. A total of 846 base pairs of the cytochrome b sequence were obtained for 66 individuals collected in Gabon, Cameroon, Republic of Congo and Central African Republic. These sequences were compared to those of M. minutoides from other African countries and to eight other species of the g...
Référencé le :
15-03-2012
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Habitat selection and mating success in a mustelid
Date de publication :
20130801 |
Auteur(s) :
Lodé, T., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Hindawi Publishing Corporation |
Origine de la fiche :
Université de Rennes 1
Habitat selection remains a poorly understood ecological process, but relating mating behaviour to pattern of habitat selection constitutes a fundamental issue both in evolutionary ecology and in biological conservation. From radiotelemetry protocol, habitat-induced variations in mating success were investigated in a solitary mustelid carnivore, the European polecat Mustela putorius. Selection for...
Référencé le :
21-03-2012
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Sex is not a solution for reproduction: The libertine bubble theory
Date de publication :
20130801 |
Auteur(s) :
Lodé, T., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Wiley Periodicals, Inc. |
Origine de la fiche :
Université de Rennes 1
Conclusion
A negative interaction can easily act as an evolutionary dead-end as it affects
the survival of one individual. By contrast, in a self-reinforcing cycle, a positive exchange can be beneficial to all the individuals involved, which emphasises the structuring force of interactions, a well-known process in ecology. In a community of proto-cell bubbles, species differences do not exist beca...
Référencé le :
16-03-2012
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Local enhancement promotes cockroach feeding aggregations
Date de publication :
20130801 |
Auteur(s) :
Lihoreau, M., Rivault, C., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Public Library of Science |
Origine de la fiche :
Université de Rennes 1
Communication and learning from each other are part of the success of animal societies. Social insects invest considerable effort into signalling to their nestmates the locations of the most profitable resources in their environment. Growing evidence also indicates that insects glean such information through cues inadvertently provided by their conspecifics. Here, we investigate social information...
Référencé le :
14-03-2012
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Social learning of vocal structure in a nonhuman primate?
Date de publication :
20130801 |
Auteur(s) :
Lemasson, A., Ouattara, K., Petit, E.J., Zuberbühler, K., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
BioMed Central Ltd |
Origine de la fiche :
Université de Rennes 1
Background: Non-human primate communication is thought to be fundamentally different from human speech, mainly due to vast differences in vocal control. The lack of these abilities in non-human primates is especially striking if compared to some marine mammals and bird species, which has generated somewhat of an evolutionary conundrum. What are the biological roots and underlying evolutionary pres...
Référencé le :
23-03-2012
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L’origine phylogénétique du langage : apports des travaux récents sur la communication vocale des cercopithèques
Date de publication :
20130801 |
Auteur(s) :
Lemasson, A., Barbu, S., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Editions Ophrys |
Origine de la fiche :
Université de Rennes 1
Le langage humain est de loin le système de communication le plus élaboré,
mais parler, comme n’importe quel autre comportement, ne laisse aucune trace
directe de son évolution. Bien que des explications plausibles soient fournies par
les données archéologiques, celles-ci restent quantitativement limitées. Aussi,
rechercher l’origine phylogénétique du langage demeure une entreprise complexe
toujou...
Référencé le :
23-03-2012
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Acoustic variability and social significance of calls in female Campbell’s monkeys (Cercopithecus campbelli campbelli)
Date de publication :
20130801 |
Auteur(s) :
Lemasson, A., Hausberger, M., EthoS, UMR 6552, CNRS, Université de Rennes 1 |
Editeur(s) :
Acoustical Society of America |
Origine de la fiche :
Université de Rennes 1
Although the vocal repertoire of nonhuman primates is strongly constrained by genetic, a growing number of studies evidence socially determined flexibility. According to Snowdon et al. [Social Influences on Vocal Development (University Press, Cambridge, 1997), pp. 234–248], calls with a higher social function (affiliative or agonistic) would be expected to show more flexibility than lesser social...
Référencé le :
23-03-2012
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