Ara mostrant els elements 1-10 de 11
Herrando Vila, Sergi (Data de defensa: 2001-05-21)
The main objective of this thesis is to analyse how fire and fragmentation in Mediterranean habitats affect birds. Each chapter of this work poses questions and hypothesises about the ecological responses ...
Cebrian Pujol, Emma (Data de defensa: 2007-04-20)
Many antrophic activities release pollutants to the marine environment. Among them heavy metals are of great importance, since they are conservative pollutants, which can be accumulated through trophy ...
Esteve Cavaller, Manuel (Data de defensa: 2005-02-25)
Long-term data from underwater video recordings in the wild and in semi-natural channels are used to describe and compare the reproductive behaviour of fishes in the Salmoninae subfamily. The thesis is ...
Catalán Alemany, Ignacio (Data de defensa: 2003-05-30)
The high variability in the recruitment of marine fishes is probably explained by small fluctuations in the mortality rates of early developmental stages. A popular proxy for the potential mortality of ...
Gordo Villoslada, Óscar (Data de defensa: 2006-12-01)
The spatial and temporal variability of migratory phenology of <i>Ciconia ciconia, Cuculus canorus, Apus apus, Hirundo rustica</i> and <i>Luscinia megarhynchos</i> were studied by means of 44000 records ...
Martínez Abraín, Alejandro (Data de defensa: 2003-03-28)
This thesis includes several research works on population dynamics and conservation of seabirds in two small islands of the western Mediterranean: the Columbretes Islands (Castellón) and the island of ...
Ventura Oller, Marc (Data de defensa: 2005-01-28)
The aim of this thesis was to describe the life history variability of the assemblage of crustacean zooplankton in Lake Redon, with special emphasis in their life-cycles, ecological characteristics and ...
Duran i Alarcon, Sandra (Data de defensa: 2003-11-21)
The main goal of this thesis has been to study the population structure of a marine sponge species (<i>Crambe crambe</i>) at different geographic levels using different molecular markers.<br/><br/>In ...
López Legentil, Susanna (Data de defensa: 2005-04-01)
Intraspecies variability is widespread in marine invertebrates. Previous reports of <I>Cystodytes</I> (Ascidiacea, Polycitoridae) in the Mediterranean have been routinely attributed to the nominal species ...
Brotons, Lluís (Data de defensa: 2000-02-03)
The main objective of this thesis is to analyse the variation in non-breeding social systems within the group of parids and to identify the main factors involved. More specifically, I studied the role ...