L'efecte de la gestió forestal post-incendi sobre l'avifauna i la dispersió de llavors per ocells frugívors 

    Rost Bagudanch, Josep (Fecha de defensa: 2011-06-28)

    The objective of this thesis is to analyze the effect of the transformation in the habitat that postfire salvage logging supposes on birds in Mediterranean pine forests, at different levels: species, community and ecosystem, ...

    L'emmagatzematge intraovàric d'esperma en Helicolenus dactylopterus (Pisces: Scorpaeniformes) 

    Vila Espuña, Sílvia (Fecha de defensa: 2010-04-08)

    El penegal, Helicolenus dactylopterus dactylopterus (Pisces: Scorpaeniformes), és una espècie que habita profunditats d'entre els 200 i 1000 m i presenta una clara distribució batimètrica en funció de la seva talla. ...

    L'oviparisme en la família Scorpaenidae (Pisces: Scorpaeniformes) 

    Sàbat Bofill, Maria (Fecha de defensa: 2005-11-07)

    En aquest treball de tesi doctoral es descriu l'estructura gonadal, gametogènesi i cicle anual de Scorpaena porcus, S. scrofa i S. elongata per tal d'aprofundir en el coneixement dels diferents graus d'especialització dins ...

    Leaf litter decomposition in Mediterranean streams: microbial processes and responses to drought under current global change scenario 

    Mora Gómez, Juanita (Fecha de defensa: 2014-12-19)

    This thesis studied the principal environmental controlling factors and microbial mechanisms involved in leaf litter decomposition in Mediterranean intermittent streams. Additionally, drought disturbance in both Mediterranean ...

    Linking river sediment physical properties to biofilm biomass and activity 

    Ann, Vannak (Fecha de defensa: 2015-06-30)

    River sediments are composed by a variety of grain sizes which determine their permeability and biogeochemistry. The aim of this thesis was to test whether differences in river sediment physical characteristics generate ...

    Macroalgal-dominated coastal detritic bottoms of the Mediterranean Sea and the Northeastern Atlantic: description, distribution and sampling methodologies 

    Joher Sais, Sergi (Fecha de defensa: 2016-01-14)

    En aquesta tesi es van descriure els principals fons algals del detrític costaner de la plataforma continental de Mallorca i Menorca (illes Balears, Espanya), i es van proposar mètodes efectius per al seu mostreig tant a ...

    Mediterranean macroalgal forests under threat: the effects of ongoing climate change and design of restoration methods 

    Verdura Brugarola, Jana (Fecha de defensa: 2021-06-04)

    Macroalgal forests represent some of the most productive and biodiverse habitats on Earth. In the Mediterranean Sea, species of the genus Cystoseira sensu lato dominate the well-preserved subtidal rocky habitats where ...

    Metacommunities and biodiversity patterns in Mediterranean temporary ponds: the role of pond size, network connectivity and dispersal mode 

    Tornero Pinilla, Irene (Fecha de defensa: 2020-03-13)

    We sampled the macrofaunal metacommunities in four networks of Mediterranean temporary ponds covering a wide range of pond sizes and different spatial extents. 1) In the smallest pond network, pond size was not related to ...

    Microbial community assembly and biogeography in the Pyrenean lacustrine district 

    Ortiz Álvarez, Rüdiger (Fecha de defensa: 2018-05-18)

    The microbial metacommunity of the Pyrenees mountain range has never been studied at the regional level. In this PhD thesis, the main goal is to describe the taxonomic diversity and reveal the ecological processes (biotic ...

    Multiple stressor effects on river biofilm communities: from community composition to ecosystem processes using experimental mesocosms 

    Romero Blanch, Ferran (Fecha 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 important. Most of ...

    Nitrate groundwater pollution and aquifer vulnerability: the case of the Osona region 

    Boy Roura, Mercè (Fecha de defensa: 2013-10-04)

    Nitrate groundwater pollution in the Osona region is a persistent and widespread problem. Nitrate concentrations are commonly above the drinking water threshold of 50 mg/L in wells and springs. ANOVA and logistic regression ...

    O potencial didático das imagens geocientíficas em livros de textos do ensino secundário: representação da dinâmica interna da terra 

    Souza, Edson Roberto da (Fecha de defensa: 2015-07-29)

    Dada la importancia de ilustraciones científicas en los procesos de aprendizaje de contenidos geológicos, se investigó posibles relaciones entre su potencial educativo y sus etapas de producción en los libros de texto de ...

    Pharmaceuticals and endocrine disruptors: accumulation in aquatic biota and environmental effects 

    Huerta Buitrago, Belinda (Fecha de defensa: 2016-04-12)

    Occurrence, fate, and adverse effects of emerging contaminants in the aquatic environment have become a matter of concern, since these compounds have been persistently detected in wastewater treatment plant (WWTP) effluents, ...

    Radiación ultravioleta y sequía: efectos sobre la fisiología y la descomposición de hojarasca de especies arbustivas mediterráneas en el contexto del cambio climático 

    Rodríguez Hidalgo, Claudia Marina (Fecha de defensa: 2020-09-09)

    Various climatic models predict an increase in the ultraviolet (UV) radiation and a reduction in the precipitation levels reaching in the Mediterranean Basin. Exposure of plants to different levels of UV radiation and water ...

    Reintroduction of the Eurasian otter (Lutra lutra) in Muga and Fluvià basins (north-eastern Spain): viability, development, monitoring and trends of the new population 

    Saavedra Bendito, Deli (Fecha de defensa: 2003-06-10)

    Aquesta tesi es basa en el programa de reintroducció de la llúdriga eurasiàtica (Lutra lutra) a les conques dels rius Muga i Fluvià (Catalunya) durant la segona meitat dels 1990s. Els objectius de la tesi foren demostrar ...

    Reproducció i desenvolupament de la mallerenga blava (Cyanistes caeruleus): conseqüències de la invasió de la formiga argentina (Linepithema humile) en la xarxa tròfica del bosc mediterrani 

    Estany-Tigerström, David (Fecha de defensa: 2013-11-29)

    We investigated whether the Argentine ant (Linepithema humile) invasion modifies the trophic web of the sclerophyllous Mediterranean forests to the point that impacts co-occurring bird communities. We studied if the invaded ...

    Reproductive and condition status of “cold water” marine fish: new insights from a changing environment 

    Serrat Llinàs, Alba (Fecha de defensa: 2019-04-10)

    Exploited marine fish species with an affinity for cold waters inhabiting close to the warmer edge of their distribution area are exposed to stress caused by fishing and climate change. Three case studies of “cold water ...

    Resilience of aquatic metacommunities: implications for disturbance recovery 

    Cunillera-Montcusí, David (Fecha de defensa: 2020-02-21)

    During the last years, there has been an increase in the number and intensity of disturbances, and their consequences related with global change, which have corroborated the already forecasted scenarios. One example are ...

    Signal processing of microstructure profiles: integrating turbulent spatial scales in aquatic ecological modeling 

    Piera Fernández, Jaume (Fecha de defensa: 2002-03-08)

    The main objective of this thesis was the integration of microstructure information in synoptic descriptors of turbulence, that reflects the mixing processes. Turbulent patches are intermittent in space and time, but they ...

    Sistema radicular de Quercus suber: estructura i desenvolupament 

    Verdaguer Murlà, Dolors (Fecha de defensa: 1995-01-12)

    This thesis is a study of the structure and development of the young radicular system of Quercus suber. The work is focused on the sprouting capacity of the radicular system of the seedling, the development and organization ...