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Academic literature on the topic 'Hyphomycètes – Biodégradation'
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Dissertations / Theses on the topic "Hyphomycètes – Biodégradation"
Chauvet, Eric. "Production, flux et décomposition des litières en milieu alluvial : dynamique et rôle des hyphomycètes aquatiques dans le processus de décomposition." Toulouse 3, 1989. http://www.theses.fr/1989TOU30035.
Full textBaldy, Virginie. "Décomposition des litières en milieu fluvial tempéré : bilan carboné du processus - biomasses et productions bactériennes et fongiques associées." Toulouse 3, 1996. http://www.theses.fr/1996TOU30271.
Full textDang, Christian K. "Rôle fonctionnel de la biodiversité : hyphomycètes aquatiques et décomposition des litières dans les cours d'eau." Toulouse 3, 2006. http://www.theses.fr/2006TOU30200.
Full textCornut, Julien. "Décomposition de détritus végétaux dans la zone hyporhéique de cours d'eau forestiers : implication du compartiment fongique." Phd thesis, Université Paul Sabatier - Toulouse III, 2010. http://tel.archives-ouvertes.fr/tel-00741847.
Full textLecerf, Antoine. "Perturbations anthropiques et fonctionnement écologique des cours d'eau de tête de bassin : étude du processus de décomposition des litières." Toulouse 3, 2005. http://www.theses.fr/2005TOU30263.
Full textBreakdown of allochtonous leaf litter governs the functioning of headwater streams. These streams are exposed to multiple anthropogenic stresses whose consequences were examined in field (23 streams in South-Western France) and laboratory experiments. Leaf litter breakdown rate responded to alterations of physical and chemical characteristics of stream water and diversity of the riparian vegetation which affect the activity of leaf decomposers. Loss in riparian tree species noticeably lowered trophic dynamics in detritus food webs by modifying interactions among two consumer guilds (leaf-shredding invertebrates and saprophyte aquatic fungi) and the basal resource (leaf litter). Proliferation of an exotic species (Japanese Knotweed) within the riparian vegetation enhanced indigenous leaf litter breakdown as a result of changes in shredder assemblages. The relationship between shredder diversity and leaf litter breakdown rate was also highlighted in streams representative of a gradient of eutrophication (enrichment in dissolved inorganic nitrogen and phosphorus). This indicates the limitations of functional assessment schemes only based on invertebrate traits. Overall, the present results showed the sensitivity of leaf litter breakdown and associated decomposers, to anthropogenic disturbance of streams and associated riparian zones. In this respect, this ecological process appears to be an excellent multimetric indicator of headwater stream health which can discriminate among various types and levels of anthropogenic stress