Ara mostrant els elements 1-7 de 7
Trobajo Pujadas, Rosa (Data de defensa: 2003-11-06)
S'han estudiat els efectes dels factors ambientals sobre el perífiton dels sistemes lenític fluctuants del aiguamolls de l'Empordà. L'estudi s'ha realitzat als tres nivells d'integració: nivell d'ecosistema ...
Urrea Clos, Gemma (Data de defensa: 2010-11-05)
Els sistemes aquàtics continental representen un dels ecosistemes més amenaçats a nivell mundial, com a conseqüència de l'ús intensiu quel'home en fa. La conca del Guadiana no està lliure d'aquestes ...
Mor Roy, Jordi-René (Data de defensa: 2019-09-19)
Mediterranean rivers are characterized by high hydrological variability and heterogeneity of habitats, placing themselves amongst arid and temperate climates, and are associated with high biological ...
Colls Lozano, Miriam (Data de defensa: 2020-07-31)
Currently, global change is promoting the spatiotemporal occurrence of temporary streams, altering fluvial ecosystem function and structure, and the ecosystem services they provide. To effectively protect ...
Romero Blanch, Ferran (Data de defensa: 2019-12-20)
Human exploitation of river ecosystems, together with the increasing pressure that represents climate change, is posing rivers worldwide at risk. In rivers, microorganisms are ecologically very ...
González Trujillo, Juan David (Data de defensa: 2020-07-30)
I used the metacommunity framework to dissect the relative influences of dispersal (in ecological and evolutionary timeframes), selection (driven by abiotic factors) and ecological drift on the assembly ...
Llanos Paez, Oriana Lucia (Data de defensa: 2024-02-07)
Non-perennial rivers and streams are defined as systems that cease to flow at some point in space and time along their course. These systems are widespread globally representing more than half of the ...