Ara mostrant els elements 1-10 de 132
Arizmendi Mejía, Rosana (Data de defensa: 2015-11-25)
Climate change, along with other anthropogenic pressures (e.g. water pollution, overfishing and habitat degradation), is severely impacting oceans around the world, producing important changes in its ...
Pueyo Puntí, Salvador (Data de defensa: 2003-03-25)
This work is the result of a search for general (or nearly general) regularities at ecosystem level, and an exploration of their practical relevance in our relations with the environment.<br/>I began ...
Peso Fernández, Marcos (Data de defensa: 2018-12-14)
The Pyrenean frog (Rana pyrenaica) is a Pyrenees endemic species, mostly distributed between Navarra and Aragón, and recently was described in few streams of France. The typical habitat of the species ...
Sanmartí Boixeda, Neus (Data de defensa: 2020-12-18)
Our world is subjected to a panoply of drivers of change. In this context, the understanding on how our biosphere resists, absorbs or is altered by the changes, appears as a hot question in ecology. In ...
Rizzo, Valeria (Data de defensa: 2015-10-08)
The general aim of this dissertation is to investigate the evolution, the diversification and some ecological traits of the species of the strictly subterranean genus Troglocharinus Reitter, 1908. ...
Canals Merseburger, Mª Goretti (Data de defensa: 2006-04-24)
A full understanding of nutrient cycling in lotic ecosystems is crucial given the increasing influence of human activities on the eutrophication of streams and rivers. However, existing knowledge about ...
Castro Català, Núria de (Data de defensa: 2016-02-05)
Aquatic systems are under pressure from multiple stressors that affect the structure, the functioning, and the health of species, communities and ecosystems. One of the main human pressures affecting ...
Siqueira Campos, Felipe (Data de defensa: 2018-06-18)
Biodiversity patterns are results of ecological and evolutionary processes. Understanding the forces shaping biodiversity patterns help to predict the responses of ecosystems to environmental change. ...
Rivera Rondón, Carlos Alberto (Data de defensa: 2014-02-20)
Lakes are ecosystems exposed to the combined influence of climate and catchment processes. Lakes collect and archive evidence of these forcings in their sediments through of a complex interaction with ...
Mendoza Barberá, Guillermo de (Data de defensa: 2013-06-20)
“Lake macroinvertebrates and the altitudinal gradient in the Pyrenees [Los macroinvertebrados lacustres y el gradiente altitudinal en los Pirineos]” is a thesis about freshwater macroinvertebrate ...