Ara mostrant els elements 1-10 de 53
Taboada Moreno, Sergio (Data de defensa: 2012-07-20)
Esta tesis cubre diferentes aspectos de los invertebrados marinos bentónicos de la Antártida. Se trata de una tesis multidisciplinar presentada en formato artículos en la que se hacen las siguientes ...
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 ...
Afán Asencio, Isabel (Data de defensa: 2016-10-10)
Seabirds have evolved within an open and dynamic environment, the ocean. As meso-top predators, seabirds are greatly influenced by the oceanographic conditions driving marine productivity, and therefore, ...
Stegun Vidigal, Vera Cristina (Data de defensa: 2015-01-21)
The short-tailed opossums of the genus Monodelphis Burnett, 1830 are small-bodied semifossorial marsupials which inhabit almost all major biomes of South America up to 2200 m. Even though it is one of ...
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 ...
García-Tarrasón, Manuel (Data de defensa: 2014-12-19)
The results presented in this thesis have shown the strong dependence of Audouin’s gull from the Ebro Delta on fisheries. Foraging movements of breeding birds showed a great association with fishing ...
Mora de Checa, Elisa (Data de defensa: 2015-12-14)
Mygalomorphs is a cosmopolitan group that inhabits all the continents except Antarctica. The group and has been commonly described as ‘primitive’ because of the retention of plesiomorphic characters, ...
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 ...
Vighi, Morgana (Data de defensa: 2016-01-19)
Cetaceans have historically been object of heavy exploitation, and are still currently subject to different threats. For conservation and management purposes, most of the large cetacean populations have ...
Alemany Sierra, Silvia (Data de defensa: 2013-04-15)
The present dissertation, which can be framed in the fields of behavioural and psychiatric genetics, was aimed to study how early environmental factors such as parental negativity and childhood adversity, ...