Tesis doctoral de Elisabet Tornés Bes
This thesis deals with the hierarchy and heterogeneity of stream systems affecting the structure of benthic diatom communities. At a regional level, i search for different groups of sites and their indicator taxa, i studied the responses of the diatom communities to the gradients of environmental variables, i tested the usefulness of diatom indices and i searched for the best classification system for reference conditions. At a watershed level my interest was to define the factors that determined the longitudinal distribution of diversity of diatom communities. Finally, at a habitat level it was interesting to determine the factors affecting algae and cyanobacteria at this scale and examine the relative effects of environmental factors and space on the distribution of biomass and composition of benthic algae and cyanobacteria. Thus, the different chapters of the thesis had been approached following this scheme.
Datos académicos de la tesis doctoral «Distributional patterns of diatom communities in mediterranean rivers«
- Título de la tesis: Distributional patterns of diatom communities in mediterranean rivers
- Autor: Elisabet Tornés Bes
- Universidad: Girona
- Fecha de lectura de la tesis: 03/04/2009
Dirección y tribunal
- Director de la tesis
- Sergi Sabater Cortés
- Tribunal
- Presidente del tribunal: julia Toja santillana
- salomé Fernandes pinheiro de almeida (vocal)
- michel Coste (vocal)
- María rosa Trobajo pujadas (vocal)