Showing results 721 to 740 on 1227 in total
Thèse d'Elise Billoir Vendredi 26 septembre 2008 - 14h00 - Amphi de Physique nucléaire - Bât Paul Dirac
HDR - Laurent GUEGUEN le mardi 9 mai 2017 à 14 h (Amphithéâtre BU Doua)
Thèse de Romain Coulaud - Vendredi 17 février 2012 à 14h00 - Amphithéâtre Ampère - Bât Lippmann
Soutenance de thèse de Clément Boidin
Thèse de Anass Bouchnita le lundi 4 décembre 2017 à 15 h, amphithéâtre Gouy bâtiment Lippmann (La Doua)
Thèse de Henri PUSA le lundi 4 février 2019 à 13 h, salle de conférences BU (La Doua)
Thèse de Frédérique Billy - mercredi 9 décembre - 14h00- Salle des thèses - Faculté de Médecine Laennec
These de Gustavo Olivera - Vendredi 18 février 2011 - 14h00 - Salle des thèses (Faculté Laennec)
Thèse Michael PHILIPPE le vendredi 15 décembre 2017 à 14 h, médiathèque Paul Zech (Faculté de pharmacie Lyon)
These d'Arnaud Poret - Mercredi 1er juillet 2015 - 14h00 - Salle des Conférences de la Médiathèque Paul Zech - Faculté de Médecine Lyon Est
Thèse de Alice Julien-Laferrière le jeudi 8 décembre 2016 à 14 h - salle Fontannes, bâtiment Darwin D (La Doua)
Competition between organisms influences the processes governing the colonization of new habitats. As a consequence, species or populations arriving first at a suitable location may prevent secondary colonization. While adaptation to environmental variables (e.g., temperature, altitude, etc.) is essential, the presence or absence of certain species at a particular location often depends on whether or not competing species co-occur. For example, competition is thought to play an important role in structuring mammalian communities assembly. It can also explain spatial patterns of low genetic diversity following rapid colonization events or the ``progression rule'' displayed by phylogenies of species found on archipelagos. Despite the potential of competition to maintain populations in isolation, past quantitative analyses have largely ignored it because of the difficulty in designing adequate methods for assessing its impact. We present here a new model that integrates competition and dispersal into a Bayesian phylogeographic framework. Extensive simulations and analysis of real data show that our approach clearly outperforms the traditional Mantel test for detecting correlation between genetic and geographic distances. But most importantly, we demonstrate that competition can be detected with high sensitivity and specificity from the phylogenetic analysis of genetic variation in space.Joint work with L. Ranjard, D. Welch and M. Paturel.
Thèse de Vicente Acuna - vendredi 4 juin 2010 - 14h00 - Amphithéâtre du CNRS
Thèse de Thibault Gayet, le vendredi 13 juillet 2018 à 13 h 30, salle de conférence BU (Doua)
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Systematics is the study of characters distribution and evolution among species. Recent advances in molecular biology and genomics provide systematists with a tremendous amount of characters never previously attained by morphology alone. Despite its limitations, I argue here that morphology would continue to be fundamental to the systematic practice and that the genomic revolution would result in a renaissance in the conceptualization and homologization of morphological data. I will mainly focus on two taxonomic programs, namely DNA barcoding and phylogeny inference, and try to place morphological systematics within the broader frame of the Extended Evolutionary Synthesis.
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