Academic literature on the topic 'Pollinisation à médiation olfactive'
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Journal articles on the topic "Pollinisation à médiation olfactive"
Leca, Herminie, and Anne Brun. "Groupe thérapeutique à médiation sensorielle olfactive en milieu carcéral." Psychothérapies 32, no. 2 (2012): 137. http://dx.doi.org/10.3917/psys.122.0137.
Full textDissertations / Theses on the topic "Pollinisation à médiation olfactive"
Maia, Artur Campos Dália. "Olfactory attraction in Cyclocephalini-Aroid pollination systems and captivity rearing of Cyclocephala." Toulouse 3, 2011. http://thesesups.ups-tlse.fr/1594/.
Full textI studied highly specialized pollination systems involving Neotropical Araceae and scarab beetles of the tribe Cyclocephalini (Scarabaeidae, Dynastinae), and also scrutinized aspects of the ontogeny and egg development of captivity bred and reared species of Cyclocephala. Flower-visiting male and female Cyclocephala celata and C. Latericia exhibit direct attractive response to simple chemolfactory signals in the floral scents of the Caladium bicolor, Philodendron acutatum and Taccarum ulei. Pure authentic standards of 4-methyl-5-vinilthiazole and (S)-2-hydroxy-5-methyl-3-hexanone, two rare and biosynthetically diverse compounds identified as prominent constituents in floral fragrance samples among the three species of aroids, were successfully used in fragrant baits to selectively lure pollinating cyclocephaline scarab beetles. Four species of Cyclocephala native to the Atlantic Forest of northeastern Brazil, C. Celata, C. Distincta, C. Latericia and C. Paraguayensis, were successfully maintained in captivity with a simple, inexpensive rearing protocol. All species yielded viable eggs and three of them also yielded healthy imagoes on an exclusively saprophagous diet for the larvae. Near future perspectives for the controlled, large-scale reproduction of these specialized pollinators offer interesting opportunities for environmental management plans of interacting biological systems
Proffit, Magali. "Médiation chimique et structuration des communautés d'hyménoptères parasites du mutualisme figuier / pollinisateur." Montpellier 2, 2007. http://www.theses.fr/2007MON20026.
Full textDufaÿ, Mathilde. "Conflits d'intérêts et rencontres des partenaires du mutualisme : le cas du mutualisme palmier nain / pollinisateur." Montpellier, ENSA, 2003. http://www.theses.fr/2003ENSA0009.
Full textMutualisms are ubiquitous in nature, but according to current theory the conflicts of interest between mutualists should make these interactions unstable. Studies based on game theory have underlined the importance of the process of partner encounter in determining the evolutionary stability of mutualisms. The aim of this study was to understand, using an experimental approach, how the conflicts of interest between partners in a horizontally transmitted mutualism, and the emission of signals facilitating partner encounter in each new generation, interact to affect the evolutionary stability of the mutualism. We studied the mutualism between the paIm Chamaerops humilis and its specifie pollinator Oere/omus chamaeropsis, which reproduces inside the inflorescences of its host plant. Ln this mutualism, female plants are "cheaters"; they kill the eggs of their pollinator, leading to a phenomenon of pollination by deceit, imposing high costs on the pollinator and constituting a potential source of instability for the interaction. Our study of the mode of pollinator attraction by C. Humilis has revealed a unique system, previously unknown in angiosperms. The pollinators are attracted by volatile compounds emitted by leaves, and not by flowers. A preliminary comparative study suggests that this mode of attraction may have evolved more than once in palms, under particular ecological conditions. Furthermore, the chemical signal released shows sexual dimorphism in the total quantities of volatile compounds emitted by plants. This difference leads the pollinator to encounter male plants more frequently and to visit them more often. However, we showed that the chemical composition of the signal was extremely variable among individuals, excluding any possibility of qualitative distinction between signals emitted by male and female plants and preventing the evolution of an active choice behaviour by the pollinator. Our results contradict predictions from theory and show that the inability of a partner to "punish cheaters" can paradoxically stabilise a mutualism. The paradox is partly explained by the fact that the population of a mutualist is not necessarily a homogeneous set of individuals. In this system, the divergence of interests between male and female plants not only conditions the conflict of interests with the third partner (the pollinator), but also determines the evolutionary dynamics of the interaction
Bracq-Leca, Herminie. ""L'acte-sentir" dans les médiations sensorielles olfactives en milieu carcéral : de la sensation perdue à la sensation retrouvée." Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO20089.
Full textThis thesis questions an innovative group setting, using an olfactive medium. It was started to meet and to listen to criminal patients in a psychiatric ward in prison. This new practice relys on the need to invent a way to react to the extreme seriousness of the mental illnesses in this ward. The choice of smell, as mean to get in touch, opens a wide field of reflections at the cross roads of philosophy, developmental psychology, neurosciences and psychoanalytical theory. “L’acte-sentir” the sensing-act is a proposal to pattern the different processes linked to smell as a medium. This work fits in groups or individual set-ups. Primary forms of symbolization appear with this medium, and illustrate a lost subjectivity. Listening to these words and helping associative work, is therapeutic with these suffering patients, who cannot speak easily. This work request a full body and mind implication. Use of the sens of smell to attempt to make sens to nonsense
Piguet, Géraldine. "Odorama V2 : tentative de médiation technologique de la synesthésie tactile-olfactive." Thèse, 2019. http://hdl.handle.net/1866/23712.
Full textSynesthesia is a benign neurological condition in which subjects experience an automatic, involuntary and idiosyncratic cross-activation of the senses. For them, the information from one sensory modality (e.g. sight) triggers a response from another sensory modality (e.g. smell). This condition is estimated to be present in at least 4% of the population (Hubbard, 2007). Dozens of forms of synesthesia exist, and their expression varies from one individual to the next (Simner, 2013). Smell-touch synesthesia affects around 0.3% of the synesthete population (Day, 2011). It induces olfactory perceptions according to textures and other tactile sensations. Synesthesia impacts the day-to-day lives of synesthetes, as it affects the way they perceive and feel their environment. Since it is a form of divergent neurocognitive development (Ward, 2019), it can be considered a form of neurodiversity. Like any form of neurodiversity, its manifestations are difficult to express with language. This can lead to feelings of exclusion (Day, 2005; Nielsen et al., 2013). One way to promote inclusion is through empathy (Masten, Morelli, & Eisenberg, 2011), which can be facilitated through physically engaging artworks and exhibitions (Raboisson, 2014). Our goal was to create an artistic experience that allows participants to physically experience the reality of touch-smell synesthesia. However, as there was no media able to mediate this sensory phenomenon, we tried to understand how to design and build one. By applying a research-creation methodology, and in particular the principles of the DIY “maker movement,” we intended to create a prototype capable of simulating the effects of touch-smell synesthesia. However, this process of creating a device for the technological mediation of the senses proved to be a difficult one, and our final prototype is not exactly what we hoped to produce. We went as far as our technical skills allowed us to and we delivered an object that would require some future improvements. This present Master’s thesis presents the conceptual and theoretical frameworks as well as the process of creating this artefact. Based on the lessons learned from our practice analysis, we conclude that there are several social and technical issues that need to be addressed in the “maker” practice as a method for creating technological artifacts. Finally, we discuss the role that such a research-creation project can play in raising public awareness of synesthesia and neurodiversity.
Book chapters on the topic "Pollinisation à médiation olfactive"
Brun, Anne, and Herminie Lecas. "Chapitre 12. La médiation sensorielle olfactive." In Manuel des médiations thérapeutiques, 317–29. Dunod, 2013. http://dx.doi.org/10.3917/dunod.chouv.2013.01.0317.
Full textBrun, Anne, and Herminie Lecas. "Chapitre 12. La médiation sensorielle olfactive." In Manuel des médiations thérapeutiques, 335–47. Dunod, 2019. http://dx.doi.org/10.3917/dunod.brun.2019.02.0335.
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