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Academic literature on the topic 'Intégrité écologique – Québec (Province) – Québec, Région de'
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Dissertations / Theses on the topic "Intégrité écologique – Québec (Province) – Québec, Région de"
Diouf, Mariama. "L'économie sociale au service du développement durable urbain : étude sur l'organisation des entreprises de recyclage dans la région de Québec." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28182/28182.pdf.
Full textBourgon, Desroches Myosotis. "Évaluer le niveau d'intégrité écologique de la végétation d'un marais : le cas du marais de la Pointe aux Épinettes, parc national du Bic." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27419/27419.pdf.
Full textCouture, Samuel. "La modernisation écologique des petites et moyennes entreprises : l'exemple de la région de Chaudière-Appalaches." Master's thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21734.
Full textCôté, Léonie. "Sélection de symbiotes racinaires pour la restauration écologique de résidus miniers dans le nord du Québec." Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/40334.
Full textMining activities involve the removal of healthy living soil, plant propagule and symbionts, beneficial to plant is necessary to take steps to promote the ecological restoration of degraded sites. Our research hypothesis is that the use of root symbionts can enhance the establishment and survival of plant communities on on drastically disturbed sites. Healthy roots were collected from six plant species at the Schefferville iron mine site in northern Quebec. Fungi were isolated from root tips and pure isolates were identified based on ribosomal DNA internal transcribed spacer (ITS) analysis. A total of 376 cultivable fungi were isolated and identified to 106 operational taxonomic units (OTU). These cultivable communities show differences according to the types of habitat and host plant. Nine of the most frequently isolated fungi were used for an invitro test in liquid-based media (GYME) amended with overburden, waste rock or pure iron. Ergosterol andorganic acids were quantified to monitor fungal growth and reaction to amendments. Ericoid fungusRhizoscyphus ericae exhibited the best growth in the presence of mine tailings. Dark septate endophytePhialocephala fortinii ranked second in terms of growth, but it produced the highest amount of organic acids.Cadophora finlandica and Meliniomyces bicolor also showed good tolerance to amendments. In conclusion,cultivable root associated fungi did not all respond in the same way to the imposed abiotic stress. We selected the candidate fungi that would best suit the particular case of the restoration of the Schefferville mining site.
David, Victor. "Un cadre de référence pour un aménagement durable des bassins versants forestiers : application dans le projet expérimental d’aire protégée polyvalente à la réserve faunique Mastigouche, Québec." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/25923.
Full textHébert, Rémi. "Conservation de l'ours noir dans une aire protégée: le parc national de la Mauricie." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26190/26190.pdf.
Full textNature conservancy is the main goal of wilderness protected areas. Some conservation strategies, focused on concepts such as ecological integrity, ecosystem management, connectivity, buffer zones, or charismatic megafauna protection have been elaborated in the recent years to reach this goal. The American black bear is a good model to evaluate the efficiency of these conservation strategies since many factors can affect the demography of this species, such as hunting and trapping, habitat loss, and forest exploitation. The central question of my thesis is then the following: “Can a protected area such as La Mauricie National Park of Canada be able to maintain ecological integrity of a large mammal such as the American black bear?”. I used data from the long-term (1990-2005) monitoring of the black bear population in La Mauricie National Park of Canada. In the first chapter, I evaluated the influence of hunting and trapping in the periphery of the park, as well as the influence of poaching and nuisance kills on the survival of bears. Main results indicated that human-caused mortalities have a significant effect on this bear population. In the second chapter, I undertook a population viability analysis. The growth rates estimated with survival and reproduction data indicated that the number of females appears stable in the population, but that the number of males would decline if the population became isolated. In the third chapter, I emphasized the importance of accounting for sampling error in population viability analysis. Finally, in the fourth chapter, I determined the size of the greater ecosystem of La Mauricie National Park of Canada, based on the study of the movements of bears. The results of this thesis show the importance of the territory located outside of a protected area. In my opinion, we will not be able to achieve the long-term protection of the integrity of a bear population in a park of the size of La Mauricie National Park of Canada as long as conservation objectives, supported by the establishment of buffer zones around protected areas, are not integrated in a large-scale greater ecosystem management plan.