Affichage des résultats 1541 à 1560 sur 1583 au total
Thèse Cecilia Coimbra Klein - mardi 12 novembre 2013 à 14 h 30, amphithéâtre CNRS
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Queens strongly influence offspring social behaviors across the diverse eusocial taxa, suggesting that maternal influence might be involved in the origin of eusociality. Such ancestral maternal influence could have been manipulative or an honest signal, but a manipulative maternal influence could make eusociality unstable as offspring resistance evolves. Using an analytical model and individual based simulations, we show that an ancestral manipulative maternal influence becomes an honest signal under feasible conditions as maternal specialization into reproduction evolves. The reason is that specialization can move the population out of the zone of parent-offspring conflict over helping, a process that we term conflict dissolution. The key for this process is that helpers alleviate life-history trade-offs faced by mothers. Our results can simultaneously explain the origin of eusociality and its widespread association to a maternal influence via evolutionarily shifts of manipulation into honest signals.
Thèse de William Gaudry le vendredi 18 décembre 2015 à 14 h - amphithéâtre Déambulatoire 1 (Doua)
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Thèse de Julien Cattel le vendredi 16 décembre 2016 à 14 h - Amphithéâtre Dirac (Physique Nucléaire, La Doua)
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Thèse de Adrian ARELLANO DAVIN le mardi 5 décembre 2017 à 14 h, amphithéâtre CNRS (Villeurbanne)
HDR de Marie Fablet - Vendredi 20 mai 2016 - 14:00 - Salle de Conférence - BU La Doua
Thèse de Floriane Plard - jeudi 6 mars 2014 à 14 h, amphithéâtre Thémis 7
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Thèse de Carole Forfait - Mecredi 27 mars 2013 - 14h30 - Amphithéâtre Ampère - Bât Lippmann
Thèse de Magali JAILLARD le mercredi 12 décembre 2018 à 14 h, salle de conférence BU (La doua)