Affichage des résultats 7001 à 7020 sur 7228 au total
Jeremy Larroque, Elizabeth Kennedy-Overton, Jean‐michel Vandel, Sandrine Ruette, Sébastien Devillard
Pascal Roy, J. Esteve
Patrice Baa-Puyoulet, Augusto Vellozo, Jaime Huerta-Cepas, Gérard Febvay, Toni Gabaldon, Marie-France Sagot, Hubert Charles, Stefano Colella
Augusto Vellozo, Patrice Baa-Puyoulet, Jaime Huerta-Cepas, Gérard Febvay, Federica Calevro, Yvan Rahbé, Toni Gabaldon, Marie-France Sagot, Hubert Charles, Stefano Colella
Lisa Nicvert, Sophie Donnet, Mark Keith, Mike Peel, Michael J Somers, Lourens H Swanepoel, Jan Venter, Hervé Fritz, Stéphane Dray
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Arnaud Chaumot, S. Charles, Patrick Flammarion, Jeanne Garric, P. Auger
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.
Simon Penel, Christophe Blanchet, Pascal Calvat, Yonny Cardenas, Clement Gauthey, Jean Yves Nief, Bruno Spataro
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)
Olivier Poirion, Bénédicte Lafay
L. Palmeira, Laurent Guéguen, J.R. Lobry
J.-S. Guitton, S. Devillard, M. Guénézan, D. Fouchet, D. Pontier, S. Marchandeau
Myriam Chiaruzzi, Alexia Barbry, Anaëlle Muggeo, Anne Tristan, Isaline Jacquemond, Cedric Badiou, Laurence Cluzeau, Sabine Bourdeau, Thibaut Durand, Astrid Engelmann, Dorian Bosquet, Michèle Bes, Claire Prigent-Combaret, Jean Thioulouse, Daniel Muller, Gérard Lina