Dissertations / Theses on the topic 'Campagnolo'
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Vigo, Alberto <1994>. "Il marketing relazionale e CRM: il caso F.lli Campagnolo S.p.A." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/17933.
Full textPaula, Bruno Campagnolo de. "Sistema inteligente para jogos de estratégia baseados em turnos : uma abordagem utilizando planejamento baseado em casos / Bruno Campagnolo de Paula ; orientador, Alessandro Lameiras Koerich ; co-orientador, Fabrício Enembreck." reponame:Biblioteca Digital de Teses e Dissertações da PUC_PR, 2007. http://www.biblioteca.pucpr.br/tede/tde_busca/arquivo.php?codArquivo=1115.
Full textBibliografia: f. 76-83
Desde meados da década de 50, jogos têm sido utilizados para examinar e testar conceitos em diversas áreas da Inteligência Artificial (IA). As primeiras pesquisas foram baseadas em jogos clássicos como Damas e Xadrez que se caracterizam pela simplicidade
Monchâtre-Leroy, Élodie. "Épidémiologie descriptive et analytique des orthohantavirus chez les rongeurs sauvages en France." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1255.
Full textOrthohantavirus are viruses, mostly zoonotic, present in most places inhabited by rodents, which are the reservoir species. In Europe, Puumala virus (PUUV) is the orthohantavirus that causes the highest number of human disease cases, called nephropathia epidemica (NE). The virus is transmitted to humans indirectly via excretions of bank vole (Myodes glareolus), which is the reservoir species of PUUV. Infection of bank voles occurs by indirect contamination as in humans or by direct contact with another infected rodent. In France, the endemic area is located in the north-eastern part of the country. In this area, several outbreaks were identified among which the number of cases varies depending on locations, years and seasons. The epidemiology of human cases is closely related to PUUV infections in bank voles. However, the presence of an infected bank vole population alone does not explain the heterogeneous spatial distribution of human cases, with some areas remaining free of NE cases in spite of a high rodent seroprevalence. The main goal of this PhD was to better understand the factors that explain this discrepancy by comparing a low endemic area, that is Alsace, and a high endemic area, that is Ardennes. A first study evaluated the link between the risk for humans and the number of infected, and thus potentially excreting, rodents via the monitoring of rodent seroprevalence in space and time in Alsace. In comparison with studies conducted in highly endemic areas, our results show that in Alsace the limited number of human cases is associated with a low rodent seroprevalence. In addition to the number of infected rodents, the importance of environmental contamination and by this way the contamination risk for humans are impacted by the quantity of virus excreted by bank voles, which is partially modulated by the virus strain. Then, in a second phase, a phylogenetic study was conducted to assess the microevolution of virus in several sites in Ardennes. This microevolution was found to be very different depending on the number of NE cases associated to each site and was related to the characteristics of individual turnover (through survival and movements) in each rodent population. At last, the third phase of this thesis aimed to determine the impact of the environment on the demography and infection of rodents in Ardennes. This part started with an exhaustive literature review to identify the role of climatic conditions (temperatures, precipitations, snow) and food availability on rodent seroprevalence and on the number of human cases. Then, analyses with regression models allowed investigating the impact of these different factors on the risk of infection of rodents, estimated by two indicators: the seroprevalence, which is commonly used in such studies, and the incidence rate, which is a better indicator of the time of infection. Logically, our results showed that seroprevalence and incidence rate were not influenced by the same factors; the role of those factors is discussed in view of results from previous studies. Our studies suggested that the spatial heterogeneity of NE cases was partly related to the number of infected rodents and to the diversity of PUUV strains, which depend on the demographic characteristics of the rodent populations and their environment. These insights require further studies and other hypotheses need to be explored, such as the influence of rodent immunity on the level of viral excretion and the modulation of their contamination risk by their behaviour. All those inputs could be used in epidemiological models to better evaluate the risk for humans
Guidali, F. "UOMINI DI CULTURA E ASSOCIAZIONI INTELLETTUALI NEL DOPOGUERRA TRA FRANCIA, ITALIA E GERMANIA OCCIDENTALE (1945-1956)." Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/227690.
Full textHalliez, Guillaume. "Pratiques, prédateurs, proies, pullulations de campagnols prairiaux et biodiversité." Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2035/document.
Full textIn the context of the great socio-economic, technological and environmental upheavals of agricultural revolutions, mountain areas are often considered as favorable to biodiversity and environmentally friendly agricultural practices. However, these territories are under real anthropic pressure via agriculture or forestry leading to one of the fundamental questions of the coming century on the alteration of natural resources, not human activities. These new farming systems have led to the emergence or increase in abundance of species that have become agricultural pests. Due to loss of food production, chemical control and damage to non-target fauna, reservoirs of zoonoses they represent or as an essential link in food webs, micro-mammals and their outbreaks represent an area of study of primary importance in ecology. Agricultural policies that have led to a specialization of agricultural practices towards grassland production have contributed to the emergence of outbreaks of prairie voles (ground vole and field vole) through increased crop production and homogenization of the agricultural landscape. in the Jurassic Massif and the Massif Central. While some predators like small mustelids specialize in the consumption of these micro-mammals. Other predators, considered as generalists, present a functional food response by adapting their diet to the availability of the resource. This functional response may be at the origin of a postponement of predation on prey alternatives to micro-mammals. Of all these species, hunting and heritage small-scale wildlife presently represent marked management and conservation issues. The purpose of this thesis is to compare two geographical zones (Upper Romans valley and Upper Jurassic mountains) with a priori different degree of knowledge about prairie volcano outbreak systems. Through this work, we compared the phenomenon of outbreaks observed in Haute-Romanche with current knowledge of the Jurassian Massif. We also, through the analysis of long-term monitoring data and the implementation of field experiments, tried to provide information on the relations between prey and predators in a meadow vole breeding system in a temperate environment. . The objective is to try to make a comparison as much as possible between the two geographical areas to improve the management of these ecosystems. Our first work was to analyze the data collected between 1998 and 2010 to characterize the spatio-temporal functioning of the ground vole in Haute-Romanche. We also compared these data to the agricultural history of the valley between 1810 and 2003 at the plot scale. Firstly, we found that the agricultural historical scenario was similar between this valley of Haute-Romanche and other European mountain areas, with a specialization on grassland production and as a direct effect the virtual disappearance of plowed areas, the cantonment of mowing areas in the valley bottoms and extension of grazing areas to the rest of the areas used for agriculture. Based on these data, we were able to highlight a correlative link at the plot scale between the current land use and the intensity of the vole's overgrowth. Grazing areas had a lower vole abundance than mowed areas. The current agricultural occupation being directly dependent on the agricultural history of the valley, it seems likely that the agricultural specialization towards grassland production in this valley is, as in the Jura, the origin
Cerqueira, Dominique. "Implication des communautés parasitaires dans les cinétiques des populations de rongeurs : application aux populations sympatriques de deux espèces de campagnols, arvicola terrestris Sherman (Shaw, 1801) et microtus arvalis Pallas, 1979." Montpellier 2, 2001. http://www.theses.fr/2001MON20128.
Full textFraczek, Barbara. "Aromatisation dans les gonades mâles du Campagnol (Clethrionomys glareolus, S. )." Caen, 2001. http://www.theses.fr/2001CAEN2035.
Full textTAMMARO, PASQUALE. "ACCORDI DI COESISTENZA TRA MARCHI." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/465718.
Full textTrademark co-existence agreements are very popular tools to avoid/settle trademark disputes. However, many questions concerning these agreements remain unanswered. This thesis explores some of the most relevant issues from an Italian legal standpoint and the solutions offered by other countries. The thesis starts by analysing the issue of the validity of co-existence agreements (they were once considered void, were then accepted as valid by some courts and then finally also by the legislator). The thesis then analyses the typical content of co-existence agreements, with an overview of the main provisions (limitation to products and services, territorial divisions, modifications to the signs, etc.), with a focus on some wording that the parties may have further discussions on. Also examined is the relationship between co-existence agreements and third parties and the issues that can arise from the legal qualification of co-existence agreements as being binding only on the parties to it. The thesis closes with an analysis of the impact of co-existence agreements in opposition proceedings by examining the European and Italian trademark offices’ main caselaw.
Laborier, Claude. "Évolution de l'ultrastructure de l'émail dentaire chez les campagnols (arvicolidae, rodentia)." Dijon, 1991. http://www.theses.fr/1991DIJOS037.
Full textBrunet-Lecomte, Patrick. "Les Campagnols souterrains, Terricola, Arvicolidae, Rodentia, actuels et fossiles d'Europe occidentale." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376122389.
Full textBerthier, Karine. "Rôle de la dispersion dans le fonctionnement et le maintien à long terme des populations cycliques de rongeurs : le cas d'arvicola terrestris rongeur prairial, en Franche-Comté." Besançon, 2005. http://www.theses.fr/2005BESA2071.
Full textLedevin, Ronan. "La dynamique évolutive du campagnol roussâtre (Myodes glareolus) : structure spatiale des variations morphométriques." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00832801.
Full textParadis, Emmanuel. "Dynamique des populations du campagnol provençal (Microtus duodecimcostatus) : démographie, hétérogénéité spatiale et facteurs évolutifs." Montpellier 2, 1993. http://www.theses.fr/1993MON20119.
Full textGuivier, Emmanuel. "Variabilité de la résistance/tolérance des campagnols roussâtres à lhantavirus Puumala et conséquences épidémiologiques." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20194.
Full textThe bank vole Myodes glareolus is the main reservoir of Puumala hantavirus (PUUV), the agent of nephropathia epidemica (NE) in Europe. This work aims at describing the variability of M. glareolus resistance / tolerance to PUUV and at exploring its role in the distribution and transmission of the virus. We hypothesized that tolerance to PUUV should favour its persistence and transmission, what could increase the risk of NE emergence.We developed a candidate gene approach to determine the role of three immune genes in the resistance / tolerance to PUUV. Both the detection of positive associations between Drb alleles and PUUV infection and the negative relationship observed between Tnf-α gene expression and PUUV prevalence corroborated the evolution of tolerance in NE endemic areas. The costly inflammatory response activated against PUUV infection could mediate this evolution.Using landscape population genetics, we revealed the role of M. glareolus population dynamics in PUUV epidemiology. The comparison of Drb and Tnf-α genetic differentiation with the neutral pattern detected at microsatellites indicated that selection weakly acted on these immune genes. This result suggested the potential effect of phenotypic plasticity in the balance of resistance/tolerance to PUUV. The study of helminth communities confirmed this hypothesis as it revealed the impact of two nematode species on the risk of PUUV infection
Blaeren, Scarlett van. "Analyse de risques des peupliers hybrides à l'attaque des campagnols des champs (Microtus pennsylvanicus) par l'étude quantitative des composés secondaires de défense." Sherbrooke : Université de Sherbrooke, 2002.
Find full textWang, Xiaoming. "Analyse du système campagnol provençal (Microtus (terricola) duodecimcostatus) à trois niveaux de perception (groupe social, population et métapopulation)." Montpellier 2, 1993. http://www.theses.fr/1993MON20141.
Full textNavarro, Nicolas. "Réponses biotiques aux variations environnementales, communauté et phénotype : les rongeurs campagnols de la séquence de la Baume de Gigny (Jura, France, Pléistocène)." Dijon, 2004. http://www.theses.fr/2004DIJOS013.
Full textGrignard, Elise. "Analyse de protéines spermatiques post-testiculaires et développement d'outils pour le contrôle de la fertilité de différents mammifères ; Equus caballus, Bos taurus, Arvicola terrestris Scherman." Clermont-Ferrand 2, 2005. https://tel.archives-ouvertes.fr/tel-00677284/document.
Full textHuntley, Nathalie. "Le rôle du campagnol des champs (Microtus pennsylvanicus) dans le transport, la dissémination et la germination des graines." Sherbrooke : Université de Sherbrooke, 2000.
Find full textGrignard, Elise Drevet Joël. "Analyse de protéines spermatiques post-testiculaires et developpement d'outils pour le contrôle de la fertilité de différents mammifères ; Equus caballus, Bos taurus, Arvicola terrestris Scherman." Clermont-Ferrand : Université Blaise Pascal, Clermont-Ferrand 2, 2009. http://195.221.120.247/simclient/consultation/binaries/stream.asp?INSTANCE=UCFRSIM&eidmpa=DOCUMENTS_THESES_99.
Full textLeclercq, Gwenaëlle. "La reconnaissance olfactive au sein des groupes matriarcaux du campagnol des champs, Microtus arvalis (Pall.) 1778." Doctoral thesis, Universite Libre de Bruxelles, 2003. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211251.
Full textMartineau, Julie. "Changements de sélection de l'habitat du campagnol à dos roux à la suite d'une coupe forestière." Master's thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25510.
Full textThe goal of this study was to assess short-term changes in habitat selection by red-backed voles (Myodes gapperi) following forest harvesting. The spatial distribution of voles was observed before harvesting, and then a week, a month and 1-2 years after harvest. We also evaluated the ecological processes that can explain observed temporal changes in vole distribution. Although vole abundance remained similar between clearcuts and uncut forests during the first month, different ecological processes appeared to influence vole distribution. A week after harvesting, there was no evidence that habitat selection influenced the distribution of vole populations. A month after harvesting, interference competition exerted a strong influence on habitat selection of red-backed voles, hence on their distribution. Finally, our study supports the hypothesis that source-sink dynamics would be responsible for the strong decline in vole abundance observed in clearcuts 1-2 years after harvesting.
Nguyen, Thi Nhu Thao. "Modélisation mathématique et simulation de la dynamique spatiale de populations de campagnols dans l’est de la France." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCD031.
Full textThe main objective of the thesis is to propose and analyze mathematical models based on partial differential equations (PDE) to describe the spatial dynamics of two species of voles (Microtus arvalis and Arvicola terrestris), which are particularly monitored in Eastern France. The models that we have proposed are based on PDE which describe the evolution of the density of the population of voles as a function of time, age and position in space. We have two complementary approaches to represent the dynamics. In the first approach, we propose a first model that consists of a scalar PDE depending on time, age, and space supplemented with a non-local boundary condition. The flux is linear with constant coefficient in the direction of age but contains a non-local term in the directions of space. Moreover, the equation contains a second order term in the spatial variables only. We have demonstrated the existence and stability of weak entropy solutions for the model by using, respectively, the Panov's theorem of the multidimensional compensated and a doubling of the variables type argument. In the second approach we were inspired by a Multi Agent model proposed by Marilleau-Lang-Giraudoux, where the spatial dynamics of juveniles is decoupled from local evolution in each plot. To apply this model, we have introduced a directed graph whose nodes are the plots. In each node, the evolution of the colony is described by a transport equation with two variables, time and age, and the movements of dispersion, in space, are represented by the passages from one node to the other. We have proposed a discretization of the model, by finite volume methods, and noticed that this approach manages to reproduce the qualitative characteristics of the spatial dynamics observed in nature. We also proposed to consider a predator-prey system consisting of a hyperbolic equation for predators and a parabolic-hyperbolic equation for preys, where the prey's equation is analogous to the first model of the vole populations. The drift term in the predators' equation depends nonlocally on the density of prey and the two equations are also coupled via classical source terms of Lotka-Volterra type. We establish existence of solutions by applying the vanishing viscosity method, and we prove stability by a doubling of variables type argument. Moreover, concerning the numerical simulation of the first model in one-dimensional space, we obtain a finite volume discretization by using the upwind scheme and then validate the numerical scheme.The last part of my thesis work is a project in which I participated during a Summer school CEMRACS. The project was on a subject of biomathematics different from that of the thesis (an epidemiological model for salmonellosis). A new generic multi-scale modeling framework for heterogeneous transmission of pathogens in an animal population is suggested. At the intra-host level, the model describes the interaction between the commensal microbiota, the pathogen and the inflammatory response. Random fluctuations in the ecological dynamics of the individual microbiota and transmission at the inter-host scale are added to obtain a PDE model of drift-diffusion of pathogen distribution at the population level. The model is also extended to represent transmission between several populations. Asymptotic behavior as well as the impact of control strategies, including cleaning and administration of antimicrobials, are studied by numerical simulation
Sauvage, Frank Yves. "La synergie entre la dynamique démographique des populations réservoirs de campagnols roussâtres et l'excrétion du hantavirus Puumala : mise en évidence du mécanisme d'émergence de la néphropathie épidémique humaine." Lyon 1, 2004. http://www.theses.fr/2004LYO10058.
Full textHuntley, Nathalie. "Le rôle du campagnol des champs (Microtus pennsylvanicus) dans le transport, la dissémination et la germination des graines." Mémoire, Université de Sherbrooke, 1999. http://savoirs.usherbrooke.ca/handle/11143/4431.
Full textSage, Mickaël. "Transfert de bromadiolone (appâts/sols – campagnols de prairie – renards) : Etude environnementale de la persistance et mesure indirecte de l'exposition." Phd thesis, Université de Franche-Comté, 2008. http://tel.archives-ouvertes.fr/tel-00404261.
Full textLe premier objectif a été d'évaluer la variabilité environnementale de la persistance de la bromadiolone dans les appâts en conditions naturelles. Cette persistance dans les galeries de traitement est courte (demi-vie de 3 à 6 jours) et faiblement influencée par les conditions environnementales (type de sol et conditions climatiques). Cependant, elle augmente considérablement lors du stockage des appâts dans des réserves (27
Pinot, Adrien. "Les cycles de campagnols des champs dans l'Ouest de la France : une vieille question revisitée à l'aide d'outils modernes." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00858957.
Full textL'Heureux, Annie. "Dynamique des populations et effets du parasitisme chez la souris sylvestre et le campagnol des champs en milieu insulaire." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq25656.pdf.
Full textMillon, Alexandre. "Influence de la variation cyclique des proies sur un prédateur : approches individuelle et populationnelle du système Busard cendré / Campagnol des champs." Paris 6, 2006. http://www.theses.fr/2006PA066476.
Full textBlaeren, Scarlett van. "Analyse de risques des peupliers hybrides à l'attaque des campagnols des champs (Microtus pennsylvanicus) par l'étude quantitative des composés secondaires de défense." Mémoire, Université de Sherbrooke, 2002. http://savoirs.usherbrooke.ca/handle/11143/376.
Full textDureau, Romain. "Gestion collective d’un risque ravageur pour améliorer la résilience des systèmes fourragers. Modélisation bioéconomique de la gestion des pullulations de campagnols terrestres." Thesis, Université Clermont Auvergne (2017-2020), 2020. http://www.theses.fr/2020CLFAD009.
Full textSince the 1970s, some territories located in middle mountain areas and strongly specialized in grass-based breeding have been undergoing intense and frequent outbreaks of a small rodent causing damages to meadows: the vole (Arvicola terrestris scherman). Every 5 to 10 years, depending on local landscape, fodder production of exposed meadows can be reduced by 50% on average, which can disrupt fodder systems and cause important economic losses. Despite the direct and indirect control methods which are currently available, the collective dimension of risk management along with the associated costs noticeably reduce breeders’ intervention. Beyond the efficiency of control methods, we propose analyzing the failure of collective action regarding institutions and incentives set up to increase breeders’ involvement in the collective action to control voles’ outbreaks. Our goal is to determine relevant management strategies to create the conditions for a greater involvement of breeders in voles’ control. Our methodology relies on three series of qualitative interviews with breeders and institutional actors as well as on a modelling approach of fodder systems facing multiple risks (serious game) and incentives to collective action (multiagent modeling). We show that the costs of collective action (direct costs, opportunity costs, transaction costs) are an important element to explain the under-investment of breeders. Nevertheless, we argue we should also investigate more globally the lack of collective action as a lack of coordination. New institutionalism and social capital theory are interesting entry points to analyze this paradoxical state of latent group, as defined by Olson (1965). We propose defining collective action as an iceberg whose emerged part (formal structures: institutions, contracts, subventions, costs) couldn’t exist without a consistent immerged part (informal structures or social capital: knowledge, sharing, trust, networks, information). Our study leads to public policy recommendations aiming at increasing efficiency of existing institutions
Dobly, Alexandre. "Etude au laboratoire de l'organisation sociale, des stratégies reproductives et du marquage odorant chez le campagnol des champs, Microtus arvalis (Pall.) 1778." Doctoral thesis, Universite Libre de Bruxelles, 2001. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211663.
Full textWolf, Cédric. "Modélisation et analyse mathématique de la propagation d'un microparasite dans une population structurée en environnement hétérogène." Bordeaux 1, 2005. http://www.theses.fr/2005BOR13080.
Full textCampagnoli, Eduardo Bauml. "Comparação entre a citologia em base-líquida e a citologia convencional no diagnóstico de carcinomas bucais / Eduardo Bauml Campagnoli ; orientador, Antônio Adilson Soares de Lima." reponame:Biblioteca Digital de Teses e Dissertações da PUC_PR, 2003. http://www.biblioteca.pucpr.br/tede/tde_busca/arquivo.php?codArquivo=35.
Full textInclui bibliografias
A citologia em base líquida é um aperfeiçoamento da citologia esfoliativa convencional, porém o uso desta tecnologia dentro da odontologia ainda é pequeno. Este trabalho teve por objetivo avaliar a citologia em base líquida em relação à citologia convenci
Cornulier, Thomas de. "Composantes de la distribution spatiale d'un prédateur : effets respectifs de l'habitat, des ressources alimentaires et des interactions comportementales : analyse de processus ponctuels non homogènes." Lyon 1, 2005. http://www.theses.fr/2005LYO10110.
Full textJaegere, Florence De. "Mécanismes de contrôle de la reproduction chez le campagnol roussâtre (Clethrionomys glareolus Schreber 1780) :facteurs sociaux et impact de l'infection des mâles par l'hantavirus de type Puumala." Doctoral thesis, Universite Libre de Bruxelles, 2003. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211291.
Full textCampagnaro, Carlos Alberto. "Proposição de uma estrutura referencial para tratamento de não conformidades em componentes produtivos do setor automotivo / Carlos Alberto Campagnaro ; orientador, Marcelo Giroto Rebelato." reponame:Biblioteca Digital de Teses e Dissertações da PUC_PR, 2007. http://www.biblioteca.pucpr.br/tede/tde_busca/arquivo.php?codArquivo=695.
Full textBibliografia: f. 145-154
A qualidade tem evoluído significativamente nas últimas décadas e organizações debruçam-se em entender e atender seus requisitos. Embora produtos obedeçam ao controle de processo, ainda que se busque o zero defeito ou programas como TQC, Six Sigma e Lean
Morilhat, Céline. "Influence du système sol - végétation - pratiques agricoles des prairies franc-comtoises sur la dynamique de population de la forme fouisseuse du campagnol terrestre (arvicola terrestris scherman shaw, 1801)." Phd thesis, Université de Franche-Comté, 2005. http://tel.archives-ouvertes.fr/tel-00341535.
Full textVillette, Petra. "Spatial and temporal characteristics of bacterial parasite communities in outbreaking fossorial water vole (Arvicola terrestris) populations : static uniformity or dynamic heterogeneity?" Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCD056/document.
Full textContext In France, during cyclic population surges, water voles, Arvicola terrestri, cause extensive damage to mountain grassland. A working group consisting of researchers from the University of Franche-Comté (UFC), INRA (Centre de Biologie et de Gestion des Populations) agricultural organizations (Fédération Régionale de Défense contre les Organismes Nuisibles de Franche-Comté, FREDON) are working on systems approach in which interactions between voles, their habitat (landscape, predators) and agricultural practices are analysed hierarchically (in space and time). One of the objectives is to highlight the largest possible number of control factors on which it is possible to act, and the scale at which these actions are relevant. These studies have helped initiate a strategy, successfully tested in Franche-Comté and in Auvergne, which promotes the integrated control of water vole populations. Nevertheless, there are still grey areas in the understanding of the cycle, particularly on the determinants of the decline phase. The role of pathogen communities (some species may even be transmitted to humans) so far remains the subject of debate in the scientific literature. The understanding of the key factors determining this phase should allow farmers to better anticipate economic impacts and to adopt optimal strategies for vole population control Objectives: (1) To test the pathogens and senescence hypotheses in order to explain the population decline. (2) To look for biological indicators (diversity of pathogens and / or immune indicators) that may predict the decline phase in order to anticipate appropriate measures to restore grasslands. (3) To assess the role of the transition between high population density phase and the decline phase for the emergence of pathogens in vole populations that may cause human diseases.General Methodology Population monitoring with regular (monthly) sampling will be made on several populations (replicates) in the period that brackets the vole population declines. Methods based on Next Generation Sequencing (NGS) makes it possible to establish extensive catalogues of pathogens (viruses, bacteria, other parasites) hosted by vole populations and to measure the prevalence
Lemaître, Jérôme. "Déterminants de la répartition des oiseaux et des micromammifères en forêt boréale naturelle et aménagée." Doctoral thesis, Université Laval, 2009. http://hdl.handle.net/20.500.11794/21236.
Full textMarini, Lorenzo. "Caratterizzazione dinamica passiva di strutture in calcestruzzo armato per la calibrazione di modelli numerici. Il caso studio dell'edificio sito a Reggio Emilia in via Campagnoni civici 56, 58." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
Find full textCarretti, Chiara. "Caratterizzazione dinamica passiva di strutture in calcestruzzo armato per la calibrazione di modelli numerici. Il caso studio dell'edificio sito a Reggio Emilia in via Campagnoni civici 34, 36, 38." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
Find full textLe, Borgne Hélène. "Processus écologiques déterminant les changements fauniques le long d'une chronoséquence après coupe en forêt boréale." Doctoral thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/27811.
Full textUnderstanding how communities change over time and the process influencing species distribution are recurrent themes in ecological research. Although changes in animal communities following disturbances have been widely examined, few studies have investigated the process structuring communities, particularly during ecological succession resulting from anthropogenic disturbances. The main objective of my thesis was to better understand the biological processes influencing the organization of small mammal and beetle communities, as well as the distribution of a key species, the red-backed vole (Myodes gapperi), during forest succession in managed boreal forests. First, we examined how forest succession influences the process structuring species assemblages. Then, we focused more specifically on red-backed voles to investigate the processes influencing their spatial organization along a chronosequence of post-logging stands. Finally, we studied their use of habitat at a fine scale (micro-habitat) by assessing the interplay between their movements and habitat attributes characterizing post-harvested stands during ecological succession. The study showed that assemblages 50-60 years after clearcutting were similar to those found in old-growth forests. Generally, community assembly during forest succession seem to be driven by both stochastic and deterministic processes, the latter being linked to interspecific interactions more strongly than to vegetation attributes. Then, we combined habitat selection and optimal foraging theories to evaluate the processes that can explain the increase in red-backed vole abundance during post-logging forest succession in boreal ecosystems. Our results suggest that apparent competition with deer mice (Peromyscus maniculatus) limits the density of red-backed voles, and changes in the relative strength of this process during forest succession can explain patterns of vole distribution and abundance. Sustainable management must maintain habitat features needed for the recovery of species typical of mature forest, an objective that may be challenging because animal-habitat relationships can vary dynamically during succession. We thus identified key habitat attributes for red-backed voles, and then tried to explain some variations in the use of those attributes during forest succession by studying fine-scale movements during forest succession. We found, for example, that voles selected coarse woody debris as a travel path during forest succession, and that this selection was weaker in mid-seral forests than in recent cuts and old-growth forests. Such variations in animal-habitat relationships observed during forest succession can be explained by behavioural adjustments to changes in the availability of canopy cover occurring as stands mature. Overall, this thesis improves our knowledge of the processes driving wildlife distribution dynamics, by its combination of studies on community assembly, population dynamics and animal behaviour.
Bussières, Daniel. "Influence de l'intégration de produits forestiers non ligneux sur l'abondance et la richesse des micromammifères dans les haies brise-vent et les bandes riveraines." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24910/24910.pdf.
Full textJouffroy, Denis. "L’histoire de l’olivier et de l’huile d’olive en Corse de la fin du XVIème siècle au début du XXème siècle – Economie – Société – Aspects culturels." Thesis, Corte, 2013. http://www.theses.fr/2013CORT0002/document.
Full textThe olive tree and olive oil's history is inseparable from the History of the Corsican agriculture. The real nature of the culture of the olive tree and the production of the olive oil have been comprehended from the end of the XVIth century to the eve of the first world war. The olive landscape knew a great development during the modern age with the Serene highness Republic of Genoa; it pursuded on the XIXth century under the authority of the French administration. The study on the whole microregions of the island higlights the main part played by the comunities in the oleicol economy of the island. Concerning the olive tree in Corsica we notice an important diversity of trees not an uniquiness: diversity of the sorts of trees, of the cultural pratices, of ways to extract the oil, of landscapes... the economic impact of this culture during the era studied had been really important for Corsica. The olive tree is at the heart of the humans' concerns, it partially transformed the agriculture, the landscapes and the substructure of the transports, the rural architecture and took part in the emergence of an original regional micro society
A storia di l'alivu è di l'oliu d'aliva hè propiu ligata à a storia di l'agricultura corsa. A realità storica di a cultura di l'olivu è di a produzzione d'oliu hè stata studiata da a fine di u XVIe seculu finu à a prima guerra mundiale. U paisaghju d'alivi hà cunnisciutu un grande sviluppu durante l'epica muderna per via di l'abbrivu datu da a Republica di Genuva. S'hè perseguitu durante u XIXe seculu sottu à l'autorità di l'admministrazione francesa. U studiu di l'inseme di a rughjoni di l'isula hà dimustratu a funzione maestra di e communità in l'ecunumia à partesi di a cultura di l'alivi. Si parla d'una diversità è micca d'un'unicità di l'alivu in Corsica : diversità di e varietà, di e pratiche culturale, di e manere per fragne l'alive, di i paisaghji... U pesu ecunomicu di sta cultura durante u periodu studiatu hè statu assai impurtante per a Corsica. L'alivu face parte di e riflessione di l'omi. Hà cuntribuitu à transfurmà l'agricultura, i paisaghji, l'infrastrutture di i trasporti, l'architettura campagnola è hà participatu ancu à a nascita d'una sucetà micro regiunale originale
Hippolyte, Jacques. "Recherches sur Microtus arvalis pallas en altitude (Pyrénées occidentales). : Ecologie et rôle dans la bioturbation." Pau, 1987. http://www.theses.fr/1987PAUU3015.
Full textLe, Blanc Mélanie-Louise. "Réaction des micromammifères et des oiseaux à différentes intensités de coupe en forêt boréale irrégulière." Master's thesis, Université Laval, 2009. http://hdl.handle.net/20.500.11794/20907.
Full textBussières, Daniel. "Influence de l'intégration de produits forestiers non ligneux sur l'abondance et la richesse des micromammifères dans les haies brise-vent et les bandes riveraines /." 2007. http://www.theses.ulaval.ca/2007/24910/24910.pdf.
Full textVeselá, Markéta. "Transfer záalpských krajinných motivů v grafice do vybraných děl italských rytců na začátku 16. století." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-352511.
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