Mostrando ítems 1-10 de 13
Herrando Vila, Sergi (Fecha 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 (Fecha 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 (Fecha 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 ...
Martínez Abadías, Nieves (Fecha de defensa: 2007-12-19)
This thesis is the final outcome of the project "Quantitative genetics of craniofacial traits: a functional approach to heritability", which received support from the Wenner-Gren Foundation for ...
Gordo Villoslada, Óscar (Fecha 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 (Fecha 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 ...
Duran i Alarcon, Sandra (Fecha 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 (Fecha 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 (Fecha 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 ...
Torre Corominas, Ignasi (Fecha de defensa: 2004-11-03)
The main objectives of this thesis were to analyse the relative roles of food availability and predation on the distribution, population dynamics and habitat selection of small mammals in Mediterranean ...